Bevel Gears Ground Spiral Bevel Gears

KMHP KMBSG KSBSG High-Ratio Hypoid Gears Ground Spiral Bevel Gears Ground Spiral Bevel Gears

Gear Ratio 15~200 Gear Ratio 2 Gear Ratio 1.5~3 Spur

m1, 1.5 Page 456 m2~4 Page 458 m2~4 Page 460 Gears

KMBSA • KMBSB KSBS KSBZG Finished Bore Spiral Bevel Gears Ground Zerol Bevel Gears Spiral Bevel Gears

Gear Ratio Gear Ratio Gear Ratio 1.5, 2 Gears Helical 1.5~3 1.5~4 Bevel Gears

m2~6 Page 462 m1~5 Page 466 m2~3 Page 470 Gears Internal

KSB KSBY KSB Steel Bevel Gears Steel Bevel Gears Steel Bevel Gears & Pinion Shafts

Gear Ratio Gear Ratio 2~4 Gear Ratio 5 Racks 1.5~4

Catalog Number of Stock Gears m1.5~6 Page 472 m5~8 Page 472 m1.5~3 Page 476 & Pinions

The Catalog Number for KHK stock gears is based on the simple for- CP Racks mula listed below. Please order KHK gears by specifying their Catalog Numbers.

KSUB KPB KDB (Example) Stainless Steel Bevel Gears Plastic Bevel Gears Injection Molded Bevel Gears Bevel Gears Miter Gears Gear Ratio Gear Ratio Gear Ratio 2 1.5~3 1.5~3 K M BS G 2 - 40 20 R

Direction of Spiral ( R ) Bevel No. of teeth of mating gear (20) Gears m1.5~3 Page 478 m1~3 Page 480 m0.5~1 Page 482 No. of teeth (40) Module (2) KBB Nissei KKSP Sintered Metal Bushings Ground Spiral Bevel Gears Others (Ground Gear) Gears Screw Gear Ratio 1.5~2 Type (Spiral Bevel Gear) Material (SCM415)

Material Type Worm

Ø5~8 Page 482 m2~5 Page 488 S S45C B Straight Bevel Gears Gear Pair M SCM415 BS Spiral Bevel Gears SU SUS303 HP High Ratio Hypoid Gears P MC901

D DURACON Other Information Bevel

G Ground Gears Gearboxes

Feature Icons RoHS Compliant Other Stainless Product Products Product Re-machinable Resin Product Product

Finished Product Copper Alloy Product

Injection Molded Heat Treated Product Product Black Oxide coated Ground Gear Product 449 Bevel Gears

Characteristics KHK stock bevel gears are available in two types, spiral and straight tooth, in gear ratios of 1.5 through 5, and are offered in a large va- riety of modules, numbers of teeth, materials and styles. The following table lists the main features for easy selection.

Type Tooth Heat Precision Secondary Catalog No. Module Gear Ratio Material Surface JIS B 1704 Features Treatment Operations Finish : 1978 Hypoid Gear High speed reduction ratio, high efficiency, KMHP 1~1.5 15~200 SCM415 Carburized Cut 3  Note 1 high rigidity and compact gear assembly. High strength, abrasion-resistant and compact Spiral bevel gears KMBSG 2~4 2 SCM415 Carburized Ground 1  Note 1 for high-speed & torque use. Gear teeth Reasonably priced ground gear, KSBSG 2~4 1.5~3 S45C induction Ground 2  hardened yet remachinable except for the gear teeth. Ready to use without performing secondary 2~6 1.5~3 SCM415 Carburized Cut 4 × KMBSA • KMBSB operations. Strong and abrasion resistant. Gear teeth Large nos. of teeth and modules are offered in KSBS 1~5 1.5~4 S45C induction Cut 4  hardened these affordable spiral bevel gears. Gears Bevel Zerol Gear teeth A spiral bevel gears with a helix angle less than 10°. Receives KSBZG 2~3 1.5~2 S45C induction Ground 2  forces from the same direction as straight bevel gears receive hardened and have excellent precision properties.

Straight bevel gears Popular series of straight bevel gears for many 1~8 1.5~5 S45C — Cut 3  KSB • KSBY uses. Suitable for food machinery due to SUS303's 1.5~3 1.5~3 SUS303 — Cut 3  KSUB rust-resistant quality. MC nylon products are light and can be used 1~3 1.5~3 MC901 — Cut 4  KPB without lubricant. Duracon Injection Injection molded, mass-produced produc- 0.5~1 2 — 6  KDB (M90-44) Molded tions, suitable for office machines.

(NOTE 1) Although these are carburized products, secondary operations can be performed as the  Possible  Partly possible bore and the hub portions are masked during the carburization. However, as a precau- × Not possible tion, high hardness (HRC40 at maximum) occurs in some cases.  For safe handling and to prevent damage such as defor-  The chamfering of the corner gear tips for bevel gear mation, KHK stock bevel gears have round chamfering at Module Outside edge R Inside edge R the corners, on the top surface plane of a gear tooth. 0.5 up to 1 0.5 All burrs removed 1 up to 2.5 1 0.5 2.5 up to 5 2 1 Over 5 3 1.5

Integrated combination of cutting-edge technologies and know-how. The popularity in our large selection of product lineups is established by a production system integrated with advanced manufacturing tech- nology and know-how, achieving quality products.

Gear cutting of Straight Bevel Gears Bevel Gear Grinding Machine (Gleason PH-275HG)

Gear cutting of Spiral Bevel Gears Bevel Gear Cutting Machine Equipment Inspection Equipment 450 KHK Technical Information

Selection Hints Please select the most suitable products by carefully considering the characteristics of items and contents of the product tables. It is also important to read all applicable “CAUTION” notes shown below before the final selection.

1. Caution in Selecting the Mating Gears Basically, KHK stock bevel gears should be selected as shown in the catalog in pairs (e.g. MBSG2-4020R should mate with MBSG2-2040L). But, for straight tooth bevel gears, there is some interchangeability with different series. For plastic bevel gears, we recommend metal mating gears for good heat conductivity.

 Selection Chart for Straight Bevel Gears ( Allowable × Not allowable)

Gear Right (R) Left (L) KSB KSUB KPB KDB Pinion KSB    ×  Selection Chart for Spiral Bevel Gears ( Allowable × Not allowable) KSUB    × Gear KMBSA KMBSG KSBSG KSBS Pinion KMBSB KPB    × × × × KDB × × ×  KMBSG  KSBSG ×  × × KMBSA • KMBSB × ×  × KSBS × × ×  2. Caution in Selecting Gears Based on Gear Strength The gear strength values shown in the product pages were computed by assuming a certain application environment. Therefore, they should be used as reference only. We recommend that each user computes their own values by applying the actual usage conditions. To learn more about strength calculation, please refer to the technical information contained in the “Bending Strength of Bevel Gears” section on Page 87, and the “Surface Durability of Bevel Gears” section on Page 93.

 Calculation assumptions for Bending Strength of Gears Catalog No. KMBSG KSBSG KSB NOTE 3 KMBSA KSBZG KSUB KPB KDB KSBY Item KMBSB KSBS

Formula NOTE 1 Formula of bevel gears on bending strength(JGMA403-01) The Lewis formula No. of teeth of mating gear No. of teeth of the mating gear of the set — Rotation 100rpm (600rpm for MBSG, KSBSG and SBZG) 100rpm Durability Over 107cycles — Impact from motor Uniform load Allowable bending stress(kgf/mm2)

Impact from load Uniform load m 0.5 4.0 Direction of load Bidirectional 1.15 m 0.8 4.0 (40°C with No m 1.0 3.5 2 Allowable bending stress at root σFlim(kgf/mm ) NOTE 2 47 21 19 (24.5) 10.5 Lubrication) (40°C with Grease Lubrication) Safety factor KR 1.2

 Calculation assumptions for Surface Durability (Except those in common with bending strength)

Formula NOTE 1 Formula of bevel gears on surface durability(JGMA404-01) Kinematic viscosity of lubricant 100cSt (50°C) Gear support Shafts & gear box have normal stiffness, and gears are supported on one end

2 Allowable Hertz stress σHlim(kgf/mm ) 166 90 49 (62.5) 41.3

Safety factor CR 1.15

(NOTE 1) The gear strength formula is based on JGMA (Japanese Gear Manufacturers Association) specifications. “MC Nylon Technical Data” by Nippon Polypenco Limited and “Duracon Gear Data” by Polyplastic Co. Also, the units (rpm) of number of rotations and unit (kgf/mm2) of stress are adjusted to the units needed in the formula.

(NOTE 2) The allowable bending stress at the root σFlim is calculated from JGMA403-01, and set to 2/3 of the value in the consideration of the use of planetary-, idler-, or other gear systems, loaded in both directions. (NOTE 3) Since SB Bevel Pinion Shafts are thermally refined, the allowable tooth-root bending stress and allowable hertz stress are referred to the value shown in parentheses. 451 Bevel Gears

Application Hints In order to use KHK stock gears safely, carefully read the Ap- h For the handling conveniences, the KSB and KSBY series plication Hints before proceeding. If there are questions or you listed below has the tapped holes (180o apart, 2 places) on require clarifications, please contact our technical department or the holding surface. your nearest distributor.

Catalog No. L (mm) Tap Size QTC METRIC GEARS TEL. (516) 437-6700 FAX. (516) 328-3343 KSB6-4515 130 M10 deep 15 E-mail [email protected] KSBY8-4020 160 M10 deep 15 KSBY8-4515 210 M10 deep 15 1. Caution on Performing Secondary Operations KSBY5-6015 160 M10 deep 15  If you are reboring, it is important to pay special attention KSBY6-6015 220 M10 deep 15 to locating the center in order to avoid runout. b The reference datum for gear cutting is the bore. There- fore, it is best to use the bore for locating the center. If it is too difficult to do for small bores, the alternative is to use one spot on the bore and the runout of the side surface. 2. Points of Caution in Assembling c If reworking using scroll chucks, we recommend the use of new or rebored jaws for improved precision. Please exer- a Since bevel gears are cone shaped, they produce axial cise caution not to crush the teeth by applying too much thrust forces. Especially for spiral bevel gears, the directions pressure. Any scarring will cause noise during operation. of thrust changes with the hand of spiral and the direction of rotation. This is illustrated below. The bearings must be selected properly to be able to handle these thrust forces. For details, please refer to the technical reference, section of “Gear Forces” (Page 108). Direction of rotation and thrust force

Thrust Thrust Drive Lathe operations

d Thrust Thrust For items with induction hardened teeth, such as KSBSG and Thrust KSBS series, the hardness is high near the tooth root. When Thrust Drive machining the front end, the machined area should be 4 to 6mm smaller than the dimension, J.

Thrust Thrust [NOTE] Bevel gears with the gear ratio 1.57 or less, produce a thrust force which has the same direction as miter gears. For details, see page 422. b If a bevel gear is mounted on a shaft far from the bearings, the shaft may bend. We recommend mounting bevel gears as close to the bearings as possible. This is especially important since most bevel gears are supported on one end. The bending of shafts will cause abnormal noise and wear, and may even cause fatigue failure of the shafts. Both shafts and bearings must be designed with sufficient strength. e For tapping and keyway operations, see the examples giv- c Due to the thrust load of bevel gears, the gears, shafts and en in “1. Caution on Performing Secondary Operations” in bearings have the tendency to loosen up during opera- KHK Stock Spur Gear section. When cutting keyways, to tion. Bevel gears should be fastened to the shaft with keys avoid stress concentration, always leave radii on corners. and set screws, taper pins, step f KPB plastic bevel gears are susceptible to changes due shafts, etc. to temperature and humidity. Dimensions may change be- d When installing KMBSA or Taper pin tween during and after remachining operations. KMBSB spiral bevel gears in B7 g When heat treating S45C products, it is possible to get style (ring type), always secure thermal stress cracks. It is best to subject them to pen- the gears onto the mounting Gear etrant inspection afterwards. While the teeth strength may base with taper pins to absorb increase four fold, the precision of the gear will drop ap- the rotational loads. It is danger- Mounting base 452 proximately one grade. ous to secure with bolts only. KHK Technical Information

e KHK stock bevel gears are designed such that, when as- Correct Tooth Contact sembled according to the specified mounting distance with  When assembled correctly, the contact will occur on both a tolerance of H7 - H8, the backlash shown in the table is gears in the middle of the flank and center of face width but obtained. Mounting distance error, offset error and shaft somewhat closer to the toe. angle error must be minimized to avoid excessive noise and wear. For various conditions of teeth contact, please see the following illustrations, "Correct Tooth Contact" and "Incorrect Tooth Contact".

Center contact closer to toes

Incorrect Tooth Contact

 Mounting Distance Error  Offset Error  Shaft Angle Error  When the mounting distance of the  When the pinion shaft is offset, the  When there is an angular error of pinion is incorrect, the contact will contact surface is near the toe of one shafts, the gears will contact at the occur too high on the flank on one gear and near the heel of the other. toes or heels depending on whether gear and too low on the other. the angle is greater or less than 90°. Low contact Heel contact High contact Error Error Error

Toe contact Toe contact

High contact Toe contact Heel contact Low contact Error Error Error

Heel contact

Application Examples

KSB Bevel Gears are used in the automatic line-feeding of a machine part processing 2WD Bicycle by SHESCO machine. KSB Bevel Gears are used in the driving components in both the front and rear wheels. 453 454 Other Bevel Screw Bevel Miter Internal Helical Spur Worm CP Racks Racks Products GearboxesGear Pair Gears Gears Gears & Pinions Gears Gears Gears Comparison ofKMHPand Worm Gear 4. Compactgearassembly 3. Highrigidity 2. Highefficiency 1. Total-cost reduction A pairofKMHPhigh-ratiohypoidgearsare abletoproduce anamazingreduction ofspeed200:1inonestage. Efficiency Strength Position  the diagramsbelow) same asouterdiameterofthelargegear. (See The size thancomparablewormsgears. The carburizedhypoidgearsleadtosmaller (See thegraphonright). efficiency allowstheuseofsmallermotors has lessslidingcontact.Theresulting higher Compar This reduces thecostsharply. replacing severalstagesofreduction gears. The KMHPpr Features ofKMHPHighRatioHypoidGears size of the gear housing is nearly the High-Ratio HypoidGears KMHP ed towormgeardrives,theKMHP Heat Treated

ovides acompactgearingbody +

Reduced Motor Reduced Motor ex

Capacity ,50W Miniaturization of MainBody

Reduction Worm Gear Raw Material Induction Hardened ex

,60W + Efficiency Comparison oftheefficiencyKMHPHighRatioHypoidGearandComparison Gear Worm Worm Gear the product pages. compute theseloads.Theradialandthrustloadcoefficientsare givenon direction of radial and thrust loads. Following equations are used to Before usingtheKMHPhigh-ratio hypoidgears,besure toconfirmthe  T W T W loadcalculation Thrust T W T W Radial loadcalculation W W W z n W z n

G G G G

NG XG NP XP KG RG KP RP

How todeterminetheradialandthrustloads

: Torque ofgear orR(N : loadofgearorR(N) : Thrust : : : Torque ofgearorR(N : loadonthepinionorL(N) : Thrust : Torque ofgearorR(N : : RadialloadonthegearorR(N) : : : Torque ofgearorR(N : : RadialloadonthepinionorL(N) Thrust loadcoefficientofgear orR(givenThrust ontheproductpages) Number ofteethgearorR Number ofteethpinionorL load coefficientofpinionorL(givenThrust ontheproduct page) Radial loadcoefficientofgearorR(given on theproductpages) Number ofteethgearorR Number ofteethpinionorL Radial loadcoefficientofpinionorL(given ontheproductpages) W W W W XG XP RG RP =W =W =W =W KMHP KMHP NP KP NG KG ×T × T × T × T G G G G × × n z n z . . . . m) m) m) m) KMHP

High-Ratio Hypoid Gears  Variations in tooth contact due to poor alignment of gears

If the gear engagement position is out of the normal position, variations in tooth contact, as illustrated below, may appear. Spur Gears

(1) Tooth contact in case of a shaft-angle error (2) Tooth contact in case of a shaft-offset error Gears Helical

Toe contact

Toe Toe High heel contact contact contact Error Toe Low toe

contact contact Gears Internal High toe contact

Error Low heel (Offset is large) contact Racks

Low toe contact & Pinions Error CP Racks Heel contact

Heel Heel contact contact

(Offset is small) Miter Gears

Low heel High heel contact contact Heel contact Bevel Gears

(3) Tooth contact in case of a pinion set position error (4) Tooth contact in case of a gear set position error Gears Screw Low heel contact Toe contact High toe contact Error

Toe contact Worm Gear Pair

High heel Low toe contact contact Heel contact Error

Heel Bevel contact Gearboxes

Heel Other High toe contact contact Products Heel Error Toe contact Low toe contact contact Low heel contact Error

Toe contact

High heel contact

Inquiries are now being accepted on our website. 455 456 Other Bevel Screw Bevel Miter Internal Helical Spur Worm CP Racks Racks Products GearboxesGear Pair Gears Gears Gears & Pinions Gears Gears Gears when designingorassembling. ucts. Also,theoffset positionisalready set,sopleaserefer totheillustrationbellow hand helixforpinions.Theoppositegearsare notavailablefortheseprod- KMHP HighRatioHypoidGearsare designedtoberighthandhelixforgears,left  [Caution onProduct Characteristics] KMHP1-3045L KMHP1-0453R KMHP1-1200L KMHP1-2001R KMHP1.5-3045L KMHP1.5-0453R KMHP1-3060L KMHP1-0603R KMHP1.5-3060L KMHP1.5-0603R KMHP1-2060L KMHP1-0602R KMHP1.5-2060L KMHP1.5-0602R KMHP1-1045L KMHP1-0451R KMHP1.5-1045L KMHP1.5-0451R KMHP1-1060L KMHP1-0601R KMHP1.5-1060L KMHP1.5-0601R KMHP1-1090L KMHP1-0901R KMHP1-1120L KMHP1-1201R KMHP1-1180L KMHP1-1801R HelixHandsandOffsetPosition Catalog No. High-Ratio HypoidGears KMHP b a Radialandthrustloadcoefficients are thefactorsusedforcalculationofthoseloads.Asshowninfigure B8Shape,CW Theallowabletorques are obtainedfrom theresults ofexperimentationwiththepinionat600rpm,lubricatedKingstar details, seethesection“Howtodetermineradialandthrustloads” onpage454. other whenloadisapplied.Aminussignmeansthattwogearsina setapproach eachother when loadisapplied.Formore and CCWstandforclockwisecounterclockwise rotation. Aplussignmeansthatthetwogearsinasetmoveaway each SG-O (NIHONGREASE). Reduction 200 120 180 ratio 15 15 20 20 30 30 45 45 60 60 90 Nominal m1 m m1.5 m1 m1.5 m1 m1.5 m1 m1.5 m1 m1.5 m1 m1 m1 module 1 1 1.067 1.733 1.05 1.633 1.05 1.633 1.067 1.733 1.05 1.633 1.089 0.817 1 module Actual KMHP1.5-0451R/1045L * Tooth hardness Heat treatment Pressure angle Gear teeth Precision grade Material 22°30' forKMHP1.5-0453R/3045Land No. of teeth 200 120 180 45 45 60 60 60 60 45 45 60 60 90 1 3 3 3 3 2 2 1 1 1 1 1 1 1 Direction of spiral R R R R R R R R R R R R R R L L L L L L L L L L L L L L Specifications 60~63HRC Carburizing SCM415 20° Gleason JIS B1704 Shape B8 B9 B8 B9 B8 B9 B8 B9 B8 B9 B8 B9 B8 B9 B8 B9 B8 B9 B8 B9 B8 B9 B8 B9 B8 B9 B8 B9 * Bore A (Bore: H7•Shaft: h7 ) 42.1 25 22.1 12 31.1 14 26.1 12 36.1 20 22.1 12 31.1 20 20.1 12 26.1 14 22.1 12 31.1 20 31.1 20 31.1 20 42.1 25

: 1978 • Shaft Dia. grade 3 u i.Pitchdia. Hub dia. 70 30 40 34 50 34 50 30 — — 40 — 34 — 50 — 50 — 50 — 70 — — — — — — — I H F E D C B

L 200 180 21.5 10.3 48 17.6 78 11.7 63 15.7 98 12.8 63 17.7 98 10.1 48 18.3 78 12.9 63 17.7 98 15.7 98 13.4 98 22.4 D

(J) Outside dia. 200 180 21.5 10.3 48 17.6 78 11.7 63 15.7 98 12.8 63 17.7 98 10.1 48 18.3 78 12.9 63 17.7 98 15.7 98 13.4 98 22.4 Module 1,1.5 Mounting distance E 252 127 170 142 199 134 175 115 152 134 175 170 170 242 47 19 28 21 33 21 33 19 28 21 33 33 33 47

I Total length 205 113 148 125 168 120 149 104 138 122 151 149 149 200 G 40.6 16.3 23.7 18.1 28.7 17.8 28.2 16.5 23.9 17.9 28.2 28.8 29.3 40.1 Hub width 18 10 13 13 10 13 13 13 18 — — — — — — — — — — — — — — 7 8 8 7 8

A CW Length ofboreand 154 154 116 102 135 116 102 116 116 116 35 94 14 20 16 25 94 16 25 85 14 20 94 16 25 25 25 35 B8 shaft CCW KMHP

High-Ratio Hypoid Gears

E F H

(J) Spur Gears I

K G A B C(D) L Gears Helical B9

Face width Holding surface dia. Offset Radial load coefficient Thrust load coefficient Allowable transmission Allowable transmission Backlash Weight Catalog No. (J) K L CW CCW CW CCW torque (N·m) torque (kgf·m) (mm) (kg) Gears

35.1 48.48 −37.67 13 31.74 0.15 KMHP1-0453R Internal (6) 10 10.3 1.05 0.05~0.15 — 147.3 523.74 969.92 −831.16 0.29 KMHP1-3045L 56.5 26.78 −18.67 8.98 21.19 0.50 KMHP1.5-0453R (10) 18 41.2 4.20 0.10~0.20 — 100.09 338.45 566.72 −466.63 0.73 KMHP1.5-3045L 46.4 33.88 −26.2 10.11 23.73 0.29 KMHP1-0603R (8) 15 23.3 2.38 0.05~0.15 — 159.43 502.91 956.55 −829.74 0.45 KMHP1-3060L Racks 76.8 20.44 −16.54 7.15 13.95 0.94 KMHP1.5-0603R (10) 22 82.4 8.40 0.10~0.20 — 119.32 302.18 577.56 −511.77 1.15 KMHP1.5-3060L 46.4 33.59 −24.15 8.21 24.77 0.29 KMHP1-0602R (8) 18 24.1 2.46 0.05~0.15 — 186.59 784.31 1461.23 −1248.6 0.28 KMHP1-2060L 76.7 20.39 −15.29 5.96 14.75 0.94 KMHP1.5-0602R & Pinions (10) 28 87.3 8.90 0.10~0.20 CP Racks — 142.71 466.2 899.1 −782.21 0.77 KMHP1.5-2060L 34.9 48.04 −35.58 11.13 34.11 0.16 KMHP1-0451R (6) 14 11.3 1.15 0.05~0.15 — 400.81 1579.79 3014.6 −2605.26 0.22 KMHP1-1045L

56 26.36 −16.04 6.88 22.02 0.50 KMHP1.5-0451R Miter (10) 25 46.6 4.75 0.10~0.20 Gears — 233.59 1034.08 1755.84 −1439.58 0.48 KMHP1.5-1045L 46.3 33.34 −23.12 7.41 25.14 0.29 KMHP1-0601R (8) 20 25.3 2.58 0.05~0.15 — 357.61 1564.81 2936.72 −2514.09 0.28 KMHP1-1060L 76.8 22.63 −17.19 5.82 15.81 0.94 KMHP1.5-0601R (10) 30 94.0 9.58 0.10~0.20 — 303.06 974.4 1912.11 −1675.65 0.77 KMHP1.5-1060L Bevel Gears 76.2 21.08 −15.72 5.71 15.17 0.94 KMHP1-0901R (10) 32 71.4 7.28 0.05~0.15 — 464.7 1404.28 2777.98 −2443.73 0.76 KMHP1-1090L 76.4 21.17 −16.46 6.39 14.76 0.94 KMHP1-1201R (10) 32 51.8 5.28 0.03~0.10 — 720.78 1811.47 3718.13 −3326.46 0.75 KMHP1-1120L Gears

148.2 11.69 −9.25 3.53 7.96 3.99 KMHP1-1801R Screw (15) 60 260 26.5 0.05~0.15 — 614.04 1458.9 3026.67 −2721.83 1.88 KMHP1-1180L 162.4 10.77 −8.9 3.58 7.05 4.76 KMHP1-2001R (18) 65 333 34.0 0.05~0.15 — 695.62 1430.75 3074.35 −2808.83 1.88 KMHP1-1200L [Caution on Secondary Operations] a Please read “Caution on Performing Secondary Operations” (Page 452) when performing modifications and/or secondary op-

erations for safety concerns. Worm b In the illustration, the area surrounded with line is masked during the carburization process and can be modified. How- Gear Pair ever, care should be exercised since the hardness is high (approx. HRC40, maximum). Bevel Gearboxes Other Products

Inquiries are now being accepted on our website. 457 458 Other Bevel Screw Bevel Miter Internal Helical Spur Worm CP Racks Racks Products GearboxesGear Pair Gears Gears Gears & Pinions Gears Gears Gears [Caution on Product Characteristics] contact surfacedependingonthesituation. and LHSpiralGears,thetablesonrightexplaindifferent tact surfaceaccordingly. TheillustrationsshowthetopviewofRH Changes in the rotational direction of the driving gear alter the con- Tooth surfacesofspiralgearshaveconcaveandconvexsides.  KMBSG4-2040L KMBSG4-4020R KMBSG2-2040L KMBSG2-4020R KMBSG3-2040L KMBSG3-4020R KMBSG2.5-2040L KMBSG2.5-4020R Tooth ContactSurfaceofSpiralBevel Gears short lead times lead with short productionservices  Catalog No. For not products categorized in our series', Stock Gear custom gear Ground SpiralBevel Gears KMBSG RH spiral c b a Thesegearsproduce axialthrustforces. Pleaseseepage452formore details. Dimensionsoftheoutsidediameter, theoveralllengthandcrown tobacklengthare alltheoretical values,andsomediffer Allowable torques shown in the table are the calculated values according to the assumed usage conditions. Please see page ences will occur due to the corner chamferingofthegeartips. ences willoccurduetothecorner 451 formore details. Reduction Convex surface Concave surface ratio 2 Nominal module m4 m3 m2 m2.5 module Actual 20 40 20 40 20 40 20 40 Precision grade Tooth hardness Heat treatment Material Helix angle Pressure angle Gear teeth LH spiral No. of teeth R R R R L L L L Direction of spiral B3 B4 B3 B4 B3 B4 B3 B4 Specifications Tooth 55~60HRC Carburizing SCM415 35° 20° Gleason JIS B1704 Shape 20 25 16 20 12 15 12 16 Bore A 70 80 52 65 35 45 43 55 (Bore: H7•Shaft: h7 )

: 1978 • Shaft Dia. grade 1 thegears from thehubside. (Note 1)Rotationdirections giveninthetablesare forviewing LH Spiralasadrivinggear RH Spiralasadrivinggear Rotating Direction ofDriving Rotating Direction ofDriving is available. For page details VI. see (Counterclockwise) (counterclockwise) u i.Pitchdia. Hub dia. RH Rotation RH Rotation LH Rotation (Clockwise) (Clockwise) LH rotation 160 120 100 I H F E D C B 80 60 40 80 50 Gear Gear Note 1 Note 1 162.06 121.57 101.29 88.46 66.03 44.1 81.1 55.12 Outside dia. 100 ocv ufc ConvexSurface Concave Surface ocv ufc ConvexSurface Concave Surface 75 80 60 55 45 65 50 rvn er(HSia)DrivingGear(LHSpiral) Driving Gear(RHSpiral) rvn er(HSia)DrivingGear(RHSpiral) Driving Gear(LHSpiral) ovxSraeConcaveSurface Convex Surface ovxSraeConcaveSurface Convex Surface

K Module 2,2.534 Mounting distance E 45.38 48.27 38.9 39.81 28.16 31.78 31.01 33.35

G Contact Surface Contact Surface F I G G Total length H 22.12 37.06 21.51 31.57 16.02 26.1 16.28 26.29

A Hub width B 18 — —

7 C D B3 Length ofboreand 154 35 94 14 shaft - KMBSG

Ground Spiral Bevel Gears

J K

G E Spur Gears G F I G H

A B

C Gears Helical D B4

Hub width Length of bore Face width Holding surface dia. Allowable torque (N·m) Allowable torque (kgf·m) Backlash Weight Catalog No. HIJK Bending strength Surface durability Bending strength Surface durability (mm) (kg) Gears

18 29 52.7 56.5 94.2 5.76 9.61 0.57 KMBSG2-4020R Internal 14 0.04~0.10 13.75 27 25.39 28.2 47.1 2.88 4.80 0.18 KMBSG2-2040L 16 30 66.99 108 184 11.0 18.7 1.01 KMBSG2.5-4020R 17 0.05~0.11 13.25 29 29.97 54.1 91.8 5.52 9.37 0.31 KMBSG2.5-2040L 20 35 80.28 185 318 18.8 32.4 1.64 KMBSG3-4020R

20 0.06~0.12 Racks 18 36.5 36.56 92.4 159 9.42 16.2 0.56 KMBSG3-2040L 22 42 106.63 441 778 45.0 79.3 3.55 KMBSG4-4020R 27 0.09~0.15 17.5 43 51.25 221 389 22.5 39.7 1.20 KMBSG4-2040L [Caution on Secondary Operations] a Please read “Caution on Performing Secondary Operations” (Page 452) when performing modifications and/or secondary operations for safety concerns.

b In the illustration, the area surrounded with line is masked during the carburization process and can be modified. How- & Pinions CP Racks ever, care should be exercised since the hardness is high (approx. HRC40, maximum). Miter Gears Bevel Gears Gears  Forces Acting on Spiral Bevel Gear Teeth Screw

For a spiral bevel gear with shaft angle Σ=90°, pressure angle αn=20°, and spiral angle βm=35°, the tables below show the axial thrust force Fx and the radial force Fr when a tangential force Ft of 100 units is applied at the center of face width. For details, please refer to the section “Features of Tooth Surface Worm

Contact” in the technical reference. Gear Pair

Axial Thrust Force Fx

The tables show the values of Bevel Radial Force Fr Gearboxes (1) Forces acting upon pinion (2) Forces acting upon gear

Contact Gear Ratio z2/z1 Contact Gear Ratio z2/z1

Surface Surface Other 1.0 1.5 2.0 2.5 3.0 4.0 5.0 1.0 1.5 2.0 2.5 3.0 4.0 5.0 Products

Concave 80.9 82.9 82.5 81.5 80.5 78.7 77.4 Concave 80.9 75.8 71.1 67.3 64.3 60.1 57.3 Surface —18.1 —1.9 8.4 15.2 20.0 26.1 29.8 Surface —18.1 —33.6 —42.8 —48.5 —52.4 —57.2 —59.9

Convex —18.1 —33.6 —42.8 —48.5 —52.4 —57.2 —59.9 Convex —18.1 —1.9 8.4 15.2 20.0 26.1 29.8 Surface 80.9 75.8 71.1 67.3 64.3 60.1 57.3 Surface 80.9 82.9 82.5 81.5 80.5 78.7 77.4

Inquiries are now being accepted on our website. 459 460 Other Bevel Screw Bevel Miter Internal Helical Spur Worm CP Racks Racks Products GearboxesGear Pair Gears Gears Gears & Pinions Gears Gears Gears [Caution on Product Characteristics] KSBSG2-2030L KSBSG2-3020R KSBSG2.5-2030L KSBSG2.5-3020R KSBSG3-2030L KSBSG3-3020R KSBSG4-2030L KSBSG4-3020R KSBSG2-2040L KSBSG2-4020R KSBSG2.5-2040L KSBSG2.5-4020R KSBSG3-2040L KSBSG3-4020R KSBSG4-2040L KSBSG4-4020R KSBSG2-1545L KSBSG2-4515R KSBSG2.5-1545L KSBSG2.5-4515R KSBSG3-1545L KSBSG3-4515R short lead times lead with short productionservices  Catalog No. Ground SpiralBevel Gears For not products categorized in our series', Stock Gear custom gear KSBSG c b a Thesegearsproduce axialthrustforces. Pleaseseepage452formore details. Dimensionsoftheoutsidediameter, theoveralllengthandcrown tobacklengthare alltheoretical values,andsomediffer Allowable torques shown in the table are the calculated values according to the assumed usage conditions. Please see page ences will occur due to the corner chamferingofthegeartips. ences willoccurduetothecorner 451 formore details. errtoModule Gear ratio 1.5 2 3 m2 m2.5 m3 m4 m2 m2.5 m3 m4 m2 m2.5 m3 No. of teeth 20 30 20 30 20 30 20 30 20 40 20 40 20 40 20 40 15 45 15 45 15 45 Precision grade Tooth hardness Heat treatment Material Helix angle Pressure angle Gear teeth Direction of spiral R R R R R R R R R R R L L L L L L L L L L L Specifications 50~60HRC Teeth inductionhardened S45C 35° 20° Gleason JIS B1704 Shape B3 B4 B3 B4 B3 B4 B3 B4 B3 B4 B3 B4 B3 B4 B3 B4 B3 B4 B3 B4 B3 B4

: 1978 oeHbda ic i.Outsidedia. Pitchdia. Hubdia. Bore A 10 12 12 15 16 16 20 20 12 12 12 15 16 20 20 20 10 12 12 15 15 20 H7 grade 2 is available. For page details VI. see 30 35 40 45 45 50 60 70 32 40 40 50 50 60 60 70 24 40 30 50 38 60 G F E D C B 120 100 120 160 112.5 135 40 60 50 75 60 90 80 40 80 50 60 80 30 90 37.5 45 122.85 101.27 121.48 162.07 113.32 135.99 43.55 61.6 54.43 77.09 65.58 92.21 87.34 44.10 80.99 55.21 66.06 88.50 34.78 90.67 43.36 52.08 Module 2,2.534 K Mounting distance J E 120 45 40 55 50 70 55 90 75 60 45 75 55 90 65 80 60 40 75 50 90 55 G F I G G H Total length 24.91 26.6 30.88 33.86 40.17 35.34 48.17 47.49 34.04 32.26 43.61 39.65 50.63 45.76 66.24 53.69 29.66 30.29 38.27 38.25 44.98 40.59

A B Crown toback length 16.18 21.2 18.98 26.56 26.86 26.66 32.45 37.14 21.02 25.99 26.30 31.27 31.52 36.48 42.12 42.07 15.80 26.01 19.73 32.47 23.68 33.98 C D B3 - KSBSG

Ground Spiral Bevel Gears

J K G Spur E Gears G F I G H

A B

C Gears Helical D B4

15 23 37.56 14.1 14.2 1.44 1.44 0.26 KSBSG2-3020R Internal 11 0.05~0.11 11.67 22 21.34 9.61 9.44 0.98 0.96 0.13 KSBSG2-2030L 18 30 45.61 29.0 29.7 2.96 3.03 0.55 KSBSG2.5-3020R 15 0.06~0.12 14.17 28 27.42 19.8 19.8 2.02 2.02 0.28 KSBSG2.5-2030L 17 31 57.14 48.4 50.4 4.94 5.14 0.82 KSBSG3-3020R

17 0.07~0.13 Racks 20 37 34.71 33.1 33.6 3.37 3.42 0.49 KSBSG3-2030L 25 40 78.59 106 113 10.8 11.5 1.90 KSBSG4-3020R 20 0.10~0.16 23.33 43 46.89 72.2 75.3 7.36 7.68 1.05 KSBSG4-2030L 18 27 48.46 25.5 26.7 2.60 2.73 0.51 KSBSG2-4020R 15 0.05~0.11 18 32 20.92 12.8 13.4 1.30 1.36 0.19 KSBSG2-2040L

20 34 59.28 51.7 55.1 5.27 5.62 1.06 KSBSG2.5-4020R & Pinions 20 0.06~0.12 CP Racks 22.5 40 20.56 25.9 27.6 2.64 2.81 0.42 KSBSG2.5-2040L 24 38 73.81 84.8 91.9 8.65 9.38 1.67 KSBSG3-4020R 22 0.07~0.13 27.5 47 29.61 42.5 46.0 4.33 4.69 0.69 KSBSG3-2040L

28 45 102.39 195 217 19.9 22.2 3.33 KSBSG4-4020R Miter 28 0.10~0.16 Gears 35 62 42.78 97.9 109 9.98 11.1 1.53 KSBSG4-2040L 17 26 59.04 34.8 28.1 3.55 2.87 0.60 KSBSG2-4515R 15 0.05~0.11 14 29 19.13 11.2 9.38 1.14 0.96 0.095 KSBSG2-1545L 22 35 72.84 59.0 6.01 4.93 1.21 KSBSG2.5-4515R 20 0.06~0.12

17.5 37 20.51 18.9 1.93 1.64 0.19 KSBSG2.5-1545L Bevel Gears 20 35 88.18 99.3 82.5 10.1 8.41 1.99 KSBSG3-4515R 23 0.07~0.13 21.33 44 28.54 31.8 27.5 3.24 2.80 0.34 KSBSG3-1545L [Caution on Secondary Operations] a Please read “Caution on Performing Secondary Operations” (Page 452) when performing modifications and/or secondary operations for safety concerns. Gears b Due to the gear teeth being induction hardened, no secondary operations can be performed on tooth areas including the Screw bottom land (approx. 1 to 2 mm). Worm Gear Pair KGCU-M Miter Gear Kit Bevel Installment : Intersecting axes gears Gearboxes Gear Type : Miter Gears Gears : KSM2-25 KPM2-25 Gear Ratio : 1

Weight : Approx. 1kg Other Products Use of bevel gears allows the changing of the shaft angle by 90 degrees. Applications include the changing of the direction of power.

Inquiries are now being accepted on our website. 461 462 Other Bevel Screw Bevel Miter Internal Helical Spur Worm CP Racks Racks Products GearboxesGear Pair Gears Gears Gears & Pinions Gears Gears Gears [Caution onProduct Characteristics] KMBSB2-2030L KMBSA2-2030L KMBSB2-3020R KMBSA2-3020R KMBSB2.5-2030L KMBSA2.5-2030L KMBSB2.5-3020R KMBSA2.5-3020R KMBSB3-2030L KMBSA3-2030L KMBSB3-3020R KMBSA3-3020R KMBSB4-2030L KMBSA4-2030L KMBSB4-3020R KMBSA4-3020R KMBSB5-2030L KMBSA5-2030L KMBSA5-3020R KMBSB6-2030L KMBSA6-2030L KMBSA6-3020R KMBSB2-2040L KMBSA2-2040L KMBSB2-4020R KMBSA2-4020R KMBSB2.5-2040L KMBSA2.5-2040L KMBSB2.5-4020R KMBSA2.5-4020R KMBSB3-2040L KMBSA3-2040L KMBSB3-4020R KMBSA3-4020R KMBSB4-2040L KMBSA4-2040L KMBSA4-4020R KMBSB5-2040L KMBSA5-2040L KMBSA5-4020R KMBSB6-2040L KMBSA6-2040L KMBSA6-4020R Catalog No. Finished BoreSpiralBevel Gears KMBSA improved, andthe revised products are to havetwotapped holes. Starting from Jan 2012, BK-and B4-shaped products havebeen e d c b a • Thesegearsproduce axialthrustforces. Seepage452formore details. to the corner chamferingofthegeartips. to thecorner For products havingatappedhole(Exceptfor B7-shapedproducts), a tapping screw isattached as anaccessory. Although thedimensions ofthekeywayare made totheJIS(Js9)tolerance,there maybesomedeviationsdue totheeffects ofheattreatment. The allowabletorques showninthetableare thecalculatedvaluesaccording totheassumedusageconditions.Pleaseseepage 451formore details. Dimensions of the outside diameter, the overall length and crown to back length are all theoretical values, and some differences will occur due KMBSB errtoModule Gear ratio 1.5 2 m2 m2 m m2.5 m2.5 m3 m3 m4 m4 m5 m5 m6 m6 m2 m2 m2.5 m2.5 m3 m3 m4 m4 m5 m5 m6 6 No. of teeth 0RB 110 B7 R 40 0RB4 R 30 0LBK L 20 0LBK L 20 0RB4 R 30 0LBK L 20 0RB4 R 30 0LBK L 20 0RB4 R 30 0LBK L 20 0RB 80 B7 R 30 0LBK L 20 0RB 90 B7 R 30 0LBK L 20 0RB4 R 40 0LBK L 20 0RB4 R 40 0LBK L 20 0RB4 R 40 0LBK L 20 0RB 80 B7 R 40 0LBK L 20 0RB 90 B7 R 40 0LBK L 20 Precision grade Tooth hardness Heat treatment Material Helix angle Pressure angle Gear teeth Direction of spiral Shape Specifications 55~60HRC Overall carburizing SCM415 35° 20° Gleason JIS B1704 oeHbda Pitchdia. Hubdia. Bore A 22 20 55 50 18 15 25 22 20 18 30 25 25 22 40 35 35 30 40 35 50 45 22 20 18 15 28 25 22 20 35 30 25 22 35 30 45 40 H7

: 1978 0 2 3.4106. 30 62 64 26.25 33.01 67.8 150 132.04 120 105 0 2 3.8156.73.93 60 30 38.49 65.57 125 130.48 120 105 — — — — — 06 13 02. 10 423 14 21.02 26.8 40 61.36 60 40 54 34 52.61.61.323 13.33 16.16 24.96 45 43.49 40 35 87 67 03. 63 830 18 26.31 33.6 50 76.74 75 48 35 44 53.81.81.728 15.17 18.98 30.08 55 54.43 50 43 09 22 04.43.62 36 21 31.66 40.34 60 92.21 90 60 36 55 53.72.61.732.5 17.67 21.86 35.17 65 65.58 60 53 510129 04.93.82 39 21 32.18 43.99 70 122.91 120 75 08 73 54.32.52.742 21.67 27.45 45.53 85 87.34 80 70 710192155.53.72.751 25.67 33.07 55.05 105 109.2 100 87 58 10 53.32.61 29 18 26.06 31.83 45 81.06 80 45 I H G F E D C B 54 425 81 60 37 27 13.75 16.05 28.16 55 44.2 40 35 510112 03.52.91 30 16 26.29 33.35 50 101.29 100 55 35 51 53.11.81.529 13.25 16.28 31.01 65 55.12 50 43 510115 03.13.72 35 21 31.57 39.81 60 121.57 120 65 36 60 03. 15 82 36.5 18.25 21.51 38.9 80 66.03 60 53 08 84 0 53 21 7543 17.5 22.12 45.38 100 88.46 80 70 710199 2 71 74 17 53.5 21.75 27.48 57.11 125 109.91 100 87 grade 4 240 150 180 160 200 Outside dia. — — — — — Mounting distance 03.923.62 37.89 80 03.323.8 35.53 70 03.624.37 38.86 80 03.822.53 32.08 60 03. 22.98 35.2 70

K Module 2~6 E

Total length J G F I G H L

Crown toback length A B C D Hub width BK — — — — — Length ofbore 32 31 33 28 30 KMBSA • KMBSB

Finished Bore Spiral Bevel Gears

J K

E K G Spur Gears G F I E G G H F I G L 16

A A G B L C C Gears

D Helical B4 B7

Holding surface Face width Keyway Set Screw Allowable torque (N·m) Allowable torque (kgf·m) Backlash Weight dia. Catalog No. (mm) (kg) Width×Depth Size Bending strength Surface durability Bending strength Surface durability

JK L Gears 6 x 2.8 2-M5 0.26 KMBSA2-3020R Internal 11 37.56 7 34.4 38.4 3.51 3.91 6 x 2.8 2-M5 0.24 KMBSB2-3020R 0.06~0.16 5 x 2.3 2-M4 0.14 KMBSA2-2030L 11 24.34 6.5 23.5 25.6 2.39 2.61 6 x 2.8 2-M5 0.13 KMBSB2-2030L 6 x 2.8 2-M5 0.52 KMBSA2.5-3020R 14 48.01 9 68.0 76.8 6.93 7.84 Racks 8 x 3.3 2-M6 0.49 KMBSB2.5-3020R 0.07~0.17 6 x 2.8 2-M5 0.26 KMBSA2.5-2030L 14 31.02 7.5 46.4 51.2 4.73 5.22 6 x 2.8 2-M5 0.25 KMBSB2.5-2030L 8 x 3.3 2-M6 0.96 KMBSA3-3020R 17 57.14 11 118 135 12.1 13.8 8 x 3.3 2-M6 0.90 KMBSB3-3020R 0.08~0.18

6 x 2.8 2-M5 0.46 KMBSA3-2030L & Pinions 17 36.2 9 80.7 90.1 8.23 9.19 CP Racks 8 x 3.3 2-M6 0.43 KMBSB3-2030L 10 x 3.3 2-M8 1.77 KMBSA4-3020R 23 76.72 10 283 328 28.9 33.5 12 x 3.3 2-M8 1.68 KMBSB4-3020R 0.12~0.27 8 x 3.3 2-M6 1.03 KMBSA4-2030L Miter 23 48.07 11 193 219 19.7 22.3 Gears 10 x 3.3 2-M8 0.95 KMBSB4-2030L 28 97.36 — 6-M10 110 544 637 55.4 64.9 2.80 KMBSA5-3020R 10 x 3.3 2-M8 0.14~0.34 2.01 KMBSA5-2030L 28 62.04 13 371 425 37.8 43.3 12 x 3.3 2-M8 1.89 KMBSB5-2030L 34 115.61 — 6-M10 120 927 1120 94.6 114 4.55 KMBSA6-3020R Bevel 14 x 3.8 2-M10 0.16~0.36 3.56 KMBSA6-2030L Gears 34 72.41 15 633 745 64.5 76.0 14 x 3.8 2-M10 3.38 KMBSB6-2030L 6 x 2.8 2-M5 0.53 KMBSA2-4020R 14 52.7 9 59.6 69.6 6.08 7.09 6 x 2.8 2-M5 0.51 KMBSB2-4020R 0.06~0.16 5 x 2.3 2-M4 0.16 KMBSA2-2040L

14 25.39 7 29.9 34.8 3.05 3.55 Gears 6 x 2.8 2-M5 0.14 KMBSB2-2040L Screw 8 x 3.3 2-M6 0.93 KMBSA2.5-4020R 17 66.99 8 114 135 11.7 13.8 8 x 3.3 2-M6 0.90 KMBSB2.5-4020R 0.07~0.17 6 x 2.8 2-M5 0.26 KMBSA2.5-2040L 17 29.97 7 57.3 67.6 5.84 6.89 6 x 2.8 2-M5 0.25 KMBSB2.5-2040L

8 x 3.3 2-M6 1.47 KMBSA3-4020R Worm

20 80.28 11 195 233 19.9 23.7 Gear Pair 10 x 3.3 2-M8 1.40 KMBSB3-4020R 0.08~0.18 6 x 2.8 2-M5 0.51 KMBSA3-2040L 20 36.56 9.5 97.7 116 9.97 11.9 8 x 3.3 2-M6 0.48 KMBSB3-2040L 27 107.63 — 6-M10 110 466 564 47.5 57.5 3.11 KMBSA4-4020R 8 x 3.3 2-M6 0.12~0.27 1.05 KMBSA4-2040L Bevel 27 51.25 9 234 282 23.8 28.8 10 x 3.3 2-M8 0.96 KMBSB4-2040L Gearboxes 34 133.97 — 6-M10 120 915 1120 93.3 114 5.59 KMBSA5-4020R 12 x 3.3 2-M8 0.14~0.34 1.96 KMBSA5-2040L 34 61.95 11 458 559 46.7 57.0 14 x 3.8 2-M10 1.82 KMBSB5-2040L

40 162.56 — 6-M10 140 1530 1920 156 196 8.48 KMBSA6-4020R Other 14 x 3.8 2-M10 0.16~0.36 3.33 KMBSA6-2040L Products 40 77.11 14 766 961 78.1 97.9 16 x 4.3 2-M10 3.11 KMBSB6-2040L [Caution on Secondary Operations] a These products which are hardened by carburizing allow no secondary machining. However, for B7 type gear, the area surrounded with line (in the illustration) is masked during the carburization process and can be modified. Care should be exercised since the hardness is high (approx. HRC40, maximum). Taper pin When installing B7 type (ring type) Spiral Miter Gears to the base, always secure the gears onto the mounting base with taper pins Gear to absorb the rotational loads. Fastening and securing with only mounting screws could possibly cause the screws to snap due to Mounting base heavy loads. Inquiries are now being accepted on our website. 463 464 Other Bevel Screw Bevel Miter Internal Helical Spur Worm CP Racks Racks Products GearboxesGear Pair Gears Gears Gears & Pinions Gears Gears Gears [Caution onProduct Characteristics] KMBSB2-1845L KMBSA2-1845L KMBSB2-4518R KMBSA2-4518R KMBSB2.5-1845L KMBSA2.5-1845L KMBSB2.5-4518R KMBSA2.5-4518R KMBSB3-1845L KMBSA3-1845L KMBSB3-4518R KMBSA3-4518R KMBSB4-1845L KMBSA4-1845L KMBSA4-4518R KMBSB5-1845L KMBSA5-1845L KMBSA5-4518R KMBSB6-1845L KMBSA6-1845L KMBSA6-4518R KMBSB2-1545L KMBSA2-1545L KMBSB2-4515R KMBSA2-4515R KMBSB2.5-1545L KMBSA2.5-1545L KMBSB2.5-4515R KMBSA2.5-4515R KMBSB3-1545L KMBSA3-1545L KMBSB3-4515R KMBSA3-4515R KMBSB4-1545L KMBSA4-1545L KMBSA4-4515R KMBSB5-1545L KMBSA5-1545L KMBSA5-4515R KMBSB6-1545L KMBSA6-1545L KMBSA6-4515R Catalog No. Finished BoreSpiralBevel Gears KMBSA and therevised products are tohave twotappedholes. Starting from Jan2012,BK-,BT-, and B4-shapedproducts havebeenimproved, a e d c b •

to the corner chamferingofthegeartips. to thecorner The allowabletorques showninthetableare thecalculatedvaluesaccording totheassumedusageconditions.Pleaseseepage 451formore details. For products havingatappedhole(Exceptfor B7-shapedproducts), a tapping screw isattached as anaccessory. Although thedimensionsofkeyway are madetotheJIS(Js9) tolerance,there maybesome deviationsduetotheeffects ofheattreatment. These gearsproduce axialthrustforces. Seepage452formore details. Dimensions of the outside diameter, the overall length and crown to back length are all theoretical values, and some differences will occur due KMBSB errtoModule Gear ratio 2.5 3 m2 m m2 m2.5 m2.5 m3 m3 m4 m4 m5 m5 m6 m6 m2 m2 m2.5 m2.5 m3 m3 m4 m4 m5 m5 m6 6 No. of teeth 5RB4 R 45 5LBK L 15 8LBK L 18 5RB4 R 45 8LBK L 18 5RB4 R 45 8LBK L 18 5RB 80 B7 R 45 8LBK L 18 5RB 100 B7 R 45 8LBK L 18 5RB 110 B7 R 45 8LBK L 18 5RB4 R 45 5L 15 5RB4 R 45 5LBK L 15 5RB4 R 45 5LBK L 15 5RB 80 B7 R 45 5LBK L 15 5RB 90 B7 R 45 5LBK L 15 45 Precision grade Tooth hardness Heat treatment Material Helix angle Pressure angle Gear teeth Direction of spiral 7110 B7 R Shape BK BT Specifications 55~60HRC Overall carburizing SCM415 35° 20° Gleason JIS B1704 oeHbda Pitchdia. Hubdia. Bore A 25 20 40 35 16 12 30 25 20 15 35 30 25 20 32 28 42 35 50 45 22 20 12 10 25 22 15 12 32 30 20 18 25 22 32 28 H7

: 1978 89 07 02.72.81 25 15 22.98 27.67 40 90.79 90 48 89 0.3106.92.92 63 23 27.19 66.39 160 103.13 90 78 23 04 02.41.81. 27.5 14.2 15.88 28.54 60 40.42 36 32 5125134 03.42.41 31 19 28.74 34.94 50 113.49 112.5 55 04 03 23.91.21.531.5 14.75 16.82 33.19 72 50.35 45 40 515162 04.53.52 37 22 34.55 41.65 60 136.24 135 65 85 06 53.21.41. 36 16.3 18.84 37.82 85 60.69 54 48 — 37 08 1 80 17 8246 18.2 21.77 48.03 110 80.86 72 63 09 0.7155. 47 0554.5 20.5 24.71 57.3 135 101.07 90 80 518105 6 67 75 2463 22.4 27.51 66.73 160 120.55 108 95 — 89 06 03.12.91 27 18 25.99 30.01 40 90.66 90 48 63 45 52.81.793 22.5 9.33 10.77 23.78 55 34.59 30 26 5125132 53.32.21 28 18 27.42 32.43 45 113.28 112.5 55 — 23. 30 03.11.81.429 12.84 14.68 30.51 70 43.06 37.5 32 515160 53.43.52 35 22 34.05 39.94 55 136.03 135 65 — 84 28 81 86 63 36.5 16.33 18.67 38.12 85 52 45 38 26 92 1 75 15 86 45.5 18.67 21.54 47.51 110 69.24 60 52 57 65 3 68 44 08 54 20.83 24.43 56.89 135 86.55 75 65 — — I H G F E D C B grade 4 270 180 225 270 180 225 Outside dia. — — — — — — Mounting distance 03.828.05 38.28 70 52.721.25 29.77 55 53.722.82 33.37 65 53.724.19 36.97 75 02.522.14 28.85 50 03.725.16 33.57 60

K Module 2~6 E

Total length J G F I G H L Crown toback length A B C D Hub width BK — — — — — — Length ofbore 32 25 28 30 25 28 KMBSA • KMBSB

Finished Bore Spiral Bevel Gears

E J F K G J H J

E K

G Spur Gears G F I E G G H F I G L I 16 A B C K D A G L A G B L C C Gears

D Helical BT B4 B7

Face width Holding surface dia. Keyway Set Screw Allowable torque (N·m) Allowable torque (kgf·m) Backlash Weight Catalog No. JK Width×Depth Size L Bending strength Surface durability Bending strength Surface durability (mm) (kg) Gears

6 x 2.8 2-M5 0.60 KMBSA2-4518R Internal 14 62.24 8 69.3 74.3 7.06 7.58 8 x 3.3 2-M6 0.56 KMBSB2-4518R 0.06~0.16 4 x 1.8 2-M4 0.14 KMBSA2-1845L 14 23.11 7 27.2 29.7 2.77 3.03 5 x 2.3 2-M4 0.12 KMBSB2-1845L 8 x 3.3 2-M6 1.09 KMBSA2.5-4518R 18 76.53 10 138 150 14.1 15.3

8 x 3.3 2-M6 1.04 KMBSB2.5-4518R Racks 0.07~0.17 5 x 2.3 2-M4 0.26 KMBSA2.5-1845L 18 26.82 8 54.1 59.9 5.52 6.11 6 x 2.8 2-M5 0.22 KMBSB2.5-1845L 8 x 3.3 2-M6 1.92 KMBSA3-4518R 21 92.96 11 234 256 23.8 26.1 10 x 3.3 2-M8 1.84 KMBSB3-4518R 0.08~0.18 6 x 2.8 2-M5 0.41 KMBSA3-1845L 21 33.41 9 91.8 103 9.36 10.5 & Pinions 8 x 3.3 2-M6 0.36 KMBSB3-1845L CP Racks 29 122.33 — 6-M10 110 567 630 57.8 64.3 3.92 KMBSA4-4518R 8 x 3.3 2-M6 0.12~0.27 0.89 KMBSA4-1845L 29 45.83 10 223 252 22.7 25.7 10 x 3.3 2-M8 0.82 KMBSB4-1845L Miter

36 153.85 — 6-M10 130 1100 1240 112 126 6.82 KMBSA5-4518R Gears 10 x 3.3 2-M8 0.14~0.34 1.68 KMBSA5-1845L 36 56.13 11 433 495 44.2 50.5 12 x 3.3 2-M8 1.50 KMBSB5-1845L 43 184.57 — 6-M10 140 1860 2150 190 219 11.1 KMBSA6-4518R 14 x 3.8 2-M10 0.16~0.36 2.66 KMBSA6-1845L 43 66.44 12 731 859 74.6 87.6 Bevel

14 x 3.8 2-M10 2.48 KMBSB6-1845L Gears 6 x 2.8 2-M5 0.61 KMBSA2-4515R 14 61.82 9 67.8 61.3 6.91 6.25 6 x 2.8 2-M5 0.60 KMBSB2-4515R 0.06~0.16 — 2-M4 0.081 KMBSA2-1545L 14 16.46 5 21.7 20.4 2.22 2.08 4 x 1.8 2-M4 0.073 KMBSB2-1545L 6 x 2.8 2-M5 1.01 KMBSA2.5-4515R Gears 17 77.83 9 130 119 13.3 12.1 Screw 8 x 3.3 2-M6 0.98 KMBSB2.5-4515R 0.07~0.17 4 x 1.8 2-M4 0.16 KMBSA2.5-1545L 17 21.48 7 41.6 39.6 4.24 4.04 5 x 2.3 2-M4 0.15 KMBSB2.5-1545L 8 x 3.3 2-M6 1.78 KMBSA3-4515R 21 92.39 11 229 211 23.3 21.6 10 x 3.3 2-M8 1.75 KMBSB3-4515R 0.08~0.18 Worm

6 x 2.8 2-M5 0.26 KMBSA3-1545L Gear Pair 21 26.18 9 73.3 70.5 7.48 7.18 6 x 2.8 2-M5 0.24 KMBSB3-1545L 28 124.3 — 6-M10 110 542 508 55.3 51.8 3.93 KMBSA4-4515R 6 x 2.8 2-M5 0.12~0.27 0.63 KMBSA4-1545L 28 35.91 10 174 169 17.7 17.3 8 x 3.3 2-M6 0.58 KMBSB4-1545L Bevel 35 154.88 — 6-M10 120 1060 1000 108 102 7.38 KMBSA5-4515R Gearboxes 8 x 3.3 2-M6 0.14~0.34 1.16 KMBSA5-1545L 35 42.64 11 339 334 34.6 34.1 10 x 3.3 2-M8 1.07 KMBSB5-1545L 42 186.12 — 6-M10 140 1790 1740 183 178 12.0 KMBSA6-4515R 10 x 3.3 2-M8 0.16~0.36 1.90 KMBSA6-1545L 42 52.37 12 575 581 58.6 59.3 Other 12 x 3.3 2-M8 1.75 KMBSB6-1545L Products [Caution on Secondary Operations] a These products which are hardened by carburizing allow no secondary machining. However, for B7 type gear, the area surrounded with line (in the illustration) is masked during the carburization. process and can be modified. Care should be exercised since the hardness is high (approx. HRC40, maximum).

Taper pin When installing B7 type (ring type) Spiral Miter Gears to the base, always secure the gears onto the mounting base with taper pins Gear to absorb the rotational loads. Fastening and securing with only mounting screws could possibly cause the screws to snap due to Mounting base heavy loads. Inquiries are now being accepted on our website. 465 466 Other Bevel Screw Bevel Miter Internal Helical Spur Worm CP Racks Racks Products GearboxesGear Pair Gears Gears Gears & Pinions Gears Gears Gears [Caution onProduct Characteristics] KSBS2-2030L KSBS2-3020R KSBS2.5-1845L KSBS2.5-4518R KSBS2.5-2030L KSBS2.5-3020R KSBS3-1845L KSBS3-4518R KSBS3-2030L KSBS3-3020R KSBS4-1845L KSBS4-4518R KSBS4-2030L KSBS4-3020R KSBS5-1845L KSBS5-4518R KSBS5-2030L KSBS5-3020R KSBS1-2040L KSBS1-4020R KSBS1.5-2040L KSBS1.5-4020R KSBS2-2040L KSBS2-4020R KSBS2.5-2040L KSBS2.5-4020R KSBS3-2040L KSBS3-4020R KSBS4-2040L KSBS4-4020R KSBS5-2040L KSBS5-4020R KSBS2.5-1836L KSBS2.5-3618R KSBS3-1836L KSBS3-3618R KSBS4-1836L KSBS4-3618R KSBS2-1845L KSBS2-4518R short lead times lead with short production services  Catalog No. For not products categorized in our series', Stock Gear custom gear Spiral Bevel Gears KSBS d c b a

Due toheattreating, somedeformationofthebore mayoccur. Itmaybenecessarytoream thebore tobringitthestateddimensions. These gearsproduce axialthrustforces. Seepage452formore details. Dimensions oftheoutsidediameter, theoveralllengthandcrown tobacklengthare alltheoretical values,and somedifferences chamferingofthegeartips. willoccurduetothecorner The allowabletorques showninthetableare thecalculatedvaluesaccording totheassumedusageconditions.Pleaseseepage451formore details. errtoMdl No. ofteeth Module Gear ratio 1.5 2 2 2.5 m2 m m2.5 m3 m3 m4 m4 m5 m5 m1 m1.5 m2 m2.5 m3 m4 m5 m2.5 m3 m4 m2 2.5 20 30 18 45 20 30 18 45 20 30 18 45 20 30 18 45 20 30 20 40 20 40 20 40 20 40 20 40 20 40 20 40 18 36 18 36 18 36 18 45 Precision grade Tooth hardness Heat treatment Material Helix angle Pressure angle Gear teeth Direction of spiral R R R R R R R R R R R R R R R R R R R R L L L L L L L L L L L L L L L L L L L L Specifications 50~60HRC Teeth inductionhardened S45C 35° 20° Gleason JIS B1704 Shape B3 B4 B3 B4 B3 B4 B3 B4 B3 B4 B3 B4 B3 B4 B3 B4 B3 B4 B3 B4 B3 B4 B3 B4 B3 B4 B3 B4 B3 B4 B3 B5 B3 B4 B3 B4 B3 B4 B3 B4

: 1978 oeHbda ic i.Outsidedia. Pitchdia. Hubdia. Bore 10 12 12 15 12 15 16 20 16 16 20 25 20 20 22 30 22 25 10 12 12 12 15 16 20 20 20 22 25 12 15 16 20 20 20 10 12 G F E D C B A 6 8 8 grade 4 is available. For page details VI. see 100 100 30 35 40 55 40 45 48 65 45 50 62 80 60 70 80 90 80 16 25 25 38 32 40 40 50 50 60 60 70 80 38 55 46 60 60 70 32 48 112.5 135 180 120 100 150 225 100 120 160 100 200 108 144 36 40 60 45 50 75 54 60 90 72 80 90 20 40 30 60 40 80 50 60 80 45 90 54 72 90 113.49 136.24 181.57 122.85 109.2 153.67 103.87 225.81 101.27 121.48 162.07 110.45 202.54 109.53 145.99 40.42 90.79 43.49 61.36 50.35 54.43 77.09 60.69 65.58 92.21 80.86 87.34 22.08 40.52 33.08 60.75 44.1 81 55.21 66.06 88.50 50.30 91.29 60.28 80.19

K Module

J E Mounting distance 110 110 135 120 140 100 F 60 40 45 40 72 50 55 50 85 60 70 55 75 90 75 90 90 28 22 46 35 60 45 75 55 90 65 80 90 64 43 75 52 72 I

G 1~5 H

Total length A 28.54 27.67 24.96 26.8 33.19 34.94 30.88 33.86 37.82 41.65 40.17 35.34 48.03 50.98 48.17 47.49 61.62 58.08 56.02 57.9 13.73 15.02 25.45 24.93 34.04 32.27 43.61 39.65 50.63 45.76 66.24 53.69 68.48 55.02 34.06 28.38 39.79 34.82 52.51 48.84 B C D Crown toback length 15.88 22.98 16.16 21.02 16.82 28.74 18.98 26.56 18.84 34.55 26.86 26.66 21.77 40.96 32.45 37.14 38.07 42.75 25.27 46.01 12.52 16.77 20.75 21.02 26 26.30 31.27 31.52 36.48 42.12 42.07 42.61 42.54 20.32 21.79 22.57 26.53 30.05 37.99 8.52 B3 KSBS

Spiral Bevel Gears

K J J B K FD E E Spur Gears F I F I G

G FD H H

A A B B C C D D Gears Helical B4 B5 * FD has die-forged finish.

15 23 37.56 15.4 11.3 1.57 1.15 0.26 KSBS2-3020R Internal 11 0.06~0.16 11.67 22 21.34 10.5 7.52 1.07 0.77 0.13 KSBS2-2030L 18 30 45.61 31.7 23.6 3.23 2.40 0.55 KSBS2.5-3020R 15 0.07~0.17 14.17 28 27.42 21.6 15.7 2.20 1.60 0.28 KSBS2.5-2030L 17 31 57.14 52.9 39.7 5.39 4.05 0.82 KSBS3-3020R

17 0.08~0.18 Racks 20 37 34.71 36.1 26.5 3.68 2.70 0.49 KSBS3-2030L 25 40 78.59 115 88.1 11.8 8.99 1.90 KSBS4-3020R 20 0.12~0.27 23.33 43 46.89 78.7 58.8 8.03 5.99 1.05 KSBS4-2030L 24 50 91.22 253 195 25.8 19.9 4.11 KSBS5-3020R 30 0.14~0.34 28.33 56 54.83 173 130 17.6 13.3 2.29 KSBS5-2030L

8 12 26.58 3.01 2.22 0.31 0.23 0.068 KSBS1-4020R & Pinions 6 0.03~0.13 CP Racks 7 12 9.17 1.51 1.11 0.15 0.11 0.019 KSBS1-2040L 15 22 39.64 10.9 8.22 1.11 0.84 0.27 KSBS1.5-4020R 10 0.05~0.15 14.75 24 17.28 5.46 4.11 0.56 0.42 0.088 KSBS1.5-2040L

18 27 48.46 27.8 21.3 2.83 2.17 0.51 KSBS2-4020R Miter 15 0.06~0.16 Gears 18 32 20.92 13.9 10.7 1.42 1.09 0.19 KSBS2-2040L 20 34 59.28 56.4 43.7 5.75 4.46 1.06 KSBS2.5-4020R 20 0.07~0.17 22.5 40 20.56 28.2 21.9 2.88 2.23 0.40 KSBS2.5-2040L 24 38 73.81 92.5 72.6 9.44 7.40 1.67 KSBS3-4020R 22 0.08~0.18

27.5 47 29.61 46.4 36.3 4.73 3.70 0.69 KSBS3-2040L Bevel Gears 28 45 102.39 213 170 21.7 17.3 3.33 KSBS4-4020R 28 0.12~0.27 35 62 42.78 107 84.8 10.9 8.65 1.46 KSBS4-2040L 26 50 138.92 376 302 38.3 30.8 5.67 KSBS5-4020R 30 0.14~0.34 35 63 57.84 188 151 19.2 15.4 2.61 KSBS5-2040L Gears 13 24 57.72 41.7 29.3 4.26 2.99 0.72 KSBS2.5-3618R Screw 16 0.07~0.17 17.25 32 25.45 20.9 14.7 2.13 1.49 0.27 KSBS2.5-1836L 17 30 68.27 74.0 52.4 7.54 5.35 1.15 KSBS3-3618R 20 0.08~0.18 19 37 28.56 37.0 26.2 3.78 2.67 0.44 KSBS3-1836L 25 42 91.87 173 124 17.6 12.7 2.65 KSBS4-3618R 26 0.12~0.27 25 49 39.72 86.4 62.1 8.81 6.33 1.03 KSBS4-1836L Worm 15 25 62.24 31.0 21.9 3.16 2.23 0.65 KSBS2-4518R Gear Pair 14 0.06~0.16 14.2 27.5 23.11 12.2 8.74 1.24 0.89 0.15 KSBS2-1845L 18 31 76.53 61.6 44.0 6.28 4.49 1.23 KSBS2.5-4518R 18 0.07~0.17 14.75 31.5 26.82 24.2 17.6 2.47 1.80 0.28 KSBS2.5-1845L 22 37 92.96 104 75.4 10.7 7.69 2.05 KSBS3-4518R Bevel

21 0.08~0.18 Gearboxes 16.3 36 33.41 41.0 30.2 4.18 3.07 0.45 KSBS3-1845L 24 45 122.33 253 185 25.8 18.9 4.62 KSBS4-4518R 29 0.12~0.27 18 46 45.83 99.5 74.1 10.2 7.56 1.00 KSBS4-1845L 28 51 156.56 474 350 48.4 35.7 8.11 KSBS5-4518R

34 0.14~0.34 Other 20.5 52.5 56.9 186 140 19.0 14.3 1.94 KSBS5-1845L Products [Caution on Secondary Operations] a Please read “Caution on Performing Secondary Operations” (Page 452) when performing modification and/or secondary operations for safety concerns. b Due to the gear teeth being induction hardened, no secondary operations can be performed on tooth areas including the bottom land (approx. 1 to 2 mm).

Inquiries are now being accepted on our website. 467 468 Other Bevel Screw Bevel Miter Internal Helical Spur Worm CP Racks Racks Products GearboxesGear Pair Gears Gears Gears & Pinions Gears Gears Gears [Caution on Product Characteristics] KSBS2-1545L KSBS2-4515R KSBS2.5-1545L KSBS2.5-4515R KSBS3-1545L KSBS3-4515R KSBS4-1545L KSBS4-4515R KSBS5-1545L KSBS5-4515R KSBS1.5-1560L KSBS1.5-6015R KSBS2-1560L KSBS2-6015R KSBS2.5-1560L KSBS2.5-6015R KSBS3-1560L KSBS3-6015R short lead times lead with short productionservices  Catalog No. For not products categorized in our series', Stock Gear custom gear Spiral Bevel Gears KSBS d c b a

Due toheattreating, somedeformationofthebore mayoccur. Itmaybenecessarytoream thebore tobringitthestateddimensions. These gearsproduce axialthrustforces. Seepage452formore details. Dimensions oftheoutsidediameter, theoveralllengthandcrown tobacklengthare alltheoretical values,andsomedifferences chamferingofthegeartips. willoccurduetothecorner The allowabletorques showninthetableare thecalculatedvaluesaccording totheassumedusageconditions.Pleaseseepage451formore details. errtoMdl No. ofteeth Module Gear ratio 3 4 m2 m2.5 m3 m4 m5 m1.5 m2 m2.5 m3 15 45 15 45 15 45 15 45 15 45 15 60 15 60 15 60 15 60 * Precision grade Tooth hardness Heat treatment Material Helix angle Pressure angle Gear teeth 39°for6015Rand1560LofSBS1.5/2products. Direction of spiral R R R R R R R R R L L L L L L L L L Specifications 50~60HRC Teeth inductionhardened S45C 35° 20° Gleason JIS B1704 Shape B3 B4 B3 B4 B3 B4 B3 B5 B3 B5 B3 B4 B3 B4 B3 B4 B3 B4 *

: 1978 oeHbda ic i.Outsidedia. Pitchdia. Hubdia. Bore 10 12 12 15 15 20 16 20 20 30 12 10 15 12 20 15 20 G F E D C B A 8 grade 4 is available. For page details VI. see 100 120 24 40 30 50 38 60 50 80 60 90 18 60 24 80 30 38 112.5 135 180 225 120 150 180 30 90 37.5 45 60 75 22.5 90 30 37.5 45 113.32 135.99 181.3 226.61 120.46 150.5 180.57 34.78 90.67 43.36 52.08 69.30 86.55 26.09 90.36 34.68 44.16 52.64

K Module 1.5~5

J E Mounting distance 115 145 112 F 60 40 75 50 90 55 70 75 56 32 75 42 94 53 64 I G H

Total length A 29.66 30.29 38.27 38.25 44.98 40.59 54.37 50.62 66.89 50.05 22.95 24.08 30.94 31.5 38.9 39.68 44.01 47.61 B C D Crown toback length 15.80 26.01 19.73 32.47 23.68 33.98 26.55 41.95 34.43 39.92 11.45 21.48 15.58 27.91 19.83 35.24 22.96 42.64 B3 KSBS

Spiral Bevel Gears

K J J B K FD E E Spur Gears F I F I G

G FD H H

A A B B C C D D Gears Helical B4 B5 * FD has die-forged finish.

17 26 59.04 31.7 18.8 3.23 1.92 0.60 KSBS2-4515R Internal 15 0.06~0.16 14 29 19.13 10.1 6.27 1.03 0.64 0.095 KSBS2-1545L 22 35 72.82 64.3 38.7 6.56 3.94 1.21 KSBS2.5-4515R 20 0.07~0.17 17.5 37 20.51 20.6 12.9 2.10 1.31 0.19 KSBS2.5-1545L 20 35 88.18 108 65.8 11.1 6.71 1.99 KSBS3-4515R

23 0.08~0.18 Racks 21.33 44 28.54 34.7 21.9 3.54 2.24 0.34 KSBS3-1545L 24 45 118.08 253 156 25.8 15.9 4.04 KSBS4-4515R 30 0.12~0.27 23.33 52 32.26 81.1 52.0 8.27 5.30 0.76 KSBS4-1545L 20 44 152.88 473 295 48.3 30.0 6.08 KSBS5-4515R 35 0.14~0.34 30 65 48.64 152 98.2 15.5 10.0 1.44 KSBS5-1545L & Pinions

12 21 65.39 17.9 12.9 1.83 1.31 0.70 KSBS1.5-6015R CP Racks 12 0.05~0.15 10.43 22.5 15.55 4.22 3.21 0.43 0.33 0.042 KSBS1.5-1560L 16 27 87.02 42.5 30.9 4.33 3.15 1.59 KSBS2-6015R 16 0.06~0.16 14.25 30 18.06 10.0 7.73 1.02 0.79 0.10 KSBS2-1560L Miter

20 34 108.64 96.1 58.4 9.79 5.95 3.13 KSBS2.5-6015R Gears 20 0.07~0.17 18.06 37.5 20.58 22.6 14.6 2.31 1.49 0.20 KSBS2.5-1560L 25 41 134.4 156 95.7 15.9 9.76 5.38 KSBS3-6015R 22 0.08~0.18 21.12 43 31.58 36.8 23.9 3.75 2.44 0.35 KSBS3-1560L [Caution on Secondary Operations] a Please read “Caution on Performing Secondary Operations” (Page 452) when performing modification and/or secondary operations for Bevel safety concerns. Gears b Due to the gear teeth being induction hardened, no secondary operations can be performed on tooth areas including the bottom land (approx. 1 to 2 mm). Gears Screw Worm

KGCU-M Miter Gear Kit Gear Pair

Installment : Intersecting axes gears Gear Type : Miter Gears Gears : KSM2-25 Bevel

KPM2-25 Gearboxes Gear Ratio : 1 Weight : Approx. 1kg

Use of bevel gears allows the changing of the shaft angle by Other 90 degrees. Applications include Products the changing of the direction of power.

Inquiries are now being accepted on our website. 469 470 Other Bevel Screw Bevel Miter Internal Helical Spur Worm CP Racks Racks Products GearboxesGear Pair Gears Gears Gears & Pinions Gears Gears Gears  [Caution on Product Characteristics] Ground Zerol MiterGears Ground SpiralMiterGears Miter Gears KSBZG2.5-2040L KSBZG2.5-4020R KSBZG2-2040L KSBZG2-4020R KSBZG3-2030L KSBZG3-3020R KSBZG2.5-2030L KSBZG2.5-3020R KSBZG2-2030L KSBZG2-3020R KSBZG3-2040L KSBZG3-4020R Performance Comparison Catalog No. Gear Type Ground Zerol Bevel Gears KSBZG KMMSG2-20R/L KSMZG2-20R/L KSM2-20 c b a (Page 108) chamferingofthegeartips. ences willoccurduetothecorner 451 formore details. It produces anaxialthrustforce, whichhasthesamedirection asstraightbevelgears.Fordetails,seethetechnicalreference Allowable torques showninthetableare thecalculatedvaluesaccording totheassumedusageconditions.Pleaseseepage Dimensions oftheoutsidediameter, theoveralllengthandcrown tobacklengthare alltheoretical values,andsomediffer errtoModule Gear ratio 2 1.5 No thrust forceNo thrust producedinward KSUB, KPB, KSBZG forceNo thrust producedinward Thrust forceThrust producedinward Bearing Design Bearing  ○ ○ m2.5 m2 m3 m2.5 m2 m3 * No. of teeth 20 40 20 40 20 30 20 30 20 30 20 40 Precision grade Tooth hardness Heat treatment Material Pressure angle Gear teeth Mounting Distance Interchangeability

KSB   angle Helix 9 9 7 7 7 9 × , KSUB, KPB ° ° ° ° ° °

— Direction Specifications of spiral 50~60HRC Teeth inductionhardened S45C 20° Gleason JIS B1704 R R R R R R L L L L L L JIS B1704 Shape    Precision B3 B4 B3 B4 B3 B4 B3 B4 B3 B4 B3 B4 grade 2 grade 2 grade 3

: 1978 grade 2 oeHbda ic i.Outsidedia. Pitchdia. Hubdia. Bore 12 15 12 12 15 15 12 15 10 10 16 20 G F E D C B A : 1978 Bending Strength 56.5N 26.0N 24.2N 40 50 32 40 45 50 35 45 30 35 50 60    Strength •m •m • m /28.2N /13.1N /12.2N 100 120 40 80 60 90 50 75 40 60 50 60 •m •m • m 102.01 122.31 Surface Durability 94.2N 18.4N 2.92N 44.76 81.58 66.32 93.27 55.23 77.77 44.18 62.16 55.99 67.21   Durability × •m •m Module 2~3 • m K /47.1N /9.18N /1.46N Mounting distance J E •m •m • m G 60 45 70 55 55 50 45 40 75 55 90 65 Surface Roughness/Total F   Noise/Vibration  I 0.4a/3.13 0.4a/1.84 3.2a/1.63 Contact Ratio G H Total length 34.15 31.91 40.50 35.01 31.05 33.69 25.05 26.48 43.77 39.16 50.81 45.30

A B Crown toback length f   

or singleitem C 21.19 26.58 27.11 27.45 19.24 27.08 16.39 21.62 26.50 32.01 31.80 37.31

Price Price D B3 - KSBZG

Ground Zerol Bevel Gears

J K G Spur E Gears F I G H

A B Gears

C Helical D B4

15 23 11 37.56 14.3 8.88 1.46 0.91 0.27 KSBZG2-3020R Internal 0.05~0.11 11.67 22 11 21.34 9.89 5.92 1.01 0.60 0.14 KSBZG2-2030L 18 30 15 45.61 29.4 18.8 3.00 1.92 0.55 KSBZG2.5-3020R 0.06~0.12 12.5 28 15 27.42 20.4 12.5 2.08 1.28 0.25 KSBZG2.5-2030L 17 31 17 57.14 51.7 31.6 5.27 3.22 0.84 KSBZG3-3020R

0.07~0.13 Racks 20 37 17 34.71 35.8 21.1 3.65 2.15 0.50 KSBZG3-2030L 18 27 15 48.46 26.0 18.4 2.66 1.87 0.52 KSBZG2-4020R 0.05~0.11 18 32 15 20.92 13.1 9.18 1.33 0.94 0.19 KSBZG2-2040L 20 35 20 60.28 55.6 38.5 5.67 3.92 1.10 KSBZG2.5-4020R 0.06~0.12 22.5 41 20 24.56 27.9 19.2 2.85 1.96 0.40 KSBZG2.5-2040L

24 38 22 73.81 96.3 62.8 9.82 6.40 1.69 KSBZG3-4020R & Pinions 0.07~0.13 CP Racks 27.5 47 22 29.61 48.4 31.4 4.93 3.20 0.70 KSBZG3-2040L [Caution on Secondary Operations] a Please read “Cautions on Performing Secondary Operations” (Page 452) when performing modification and/or secondary operations for safety concerns. b

Due to gear teeth induction hardened, no secondary operations can be performed on tooth areas including the bottom land Miter (approx. 1to 2 mm). Gears Bevel Gears

 For products not categorized in our Stock Gear series', custom gear production services with short lead times is available. For details see page VI. Gears Screw Worm

KGCU-M Miter Gear Kit Gear Pair

Installment : Intersecting axes gears

Gear Type : Miter Gears Bevel Gears : KSM2-25 Gearboxes KPM2-25 Gear Ratio : 1 Weight : Approx. 1kg

Use of bevel gears allows the Other

changing of the shaft angle by Products 90 degrees. Applications include the changing of the direction of power.

Inquiries are now being accepted on our website. 471 472 Other Bevel Screw Bevel Miter Internal Helical Spur Worm CP Racks Racks Products GearboxesGear Pair Gears Gears Gears & Pinions Gears Gears Gears [Caution onProduct Characteristics] KSB1-2040 KSB1-4020 KSB1.5-2030 KSB1.5-3020 KSB1.25-2040 KSB1.25-4020 KSB2-2030 KSB2-3020 KSB1.5-2040 KSB1.5-4020 KSB2.5-2030 KSB2.5-3020 KSB2-2040 KSB2-4020 KSB3-2030 KSB3-3020 KSB2.5-2040 KSB2.5-4020 KSB4-2030 KSB4-3020 KSB3-2040 KSB3-4020 KSB5-2030 KSB5-3020 KSB4-2040 KSB4-4020 KSB1.5-1530 KSB1.5-3015 KSB5-2040 KSB5-4020 KSB2-1530 KSB2-3015 KSB6-2040 KSB6-4020 KSB2.5-1530 KSB2.5-3015 KSBY8-2040 KSBY8-4020 KSB3-1530 KSB3-3015 KSB4-1530 KSB4-3015 KSB5-1530 KSB5-3015 KSB6-1530 KSB6-3015 KSB2.5-1836 KSB2.5-3618 KSB3-1836 KSB3-3618 KSB4-1836 KSB4-3618 Catalog No. Steel Bevel Gears KSB • KSBY c b a

For convenience inhandling,BTShaped Gearshavetapped holesontheirholdingsurface. To find theLdimensionsand tapsizes,pleaserefer topage452. Dimensions of theoutsidediameter, the overall lengthandcrown tobacklength are alltheoretical values, andsomedifferences chamfering ofthegeartips. will occurduetothecorner The allowabletorques showninthetableare thecalculated valuesaccording totheassumed usageconditions.Pleaseseepage451for more details. errtoModule Gear ratio 2 1.5 2 2 m m1.5 m1.25 m2 m1.5 m2.5 m2 m3 m2.5 m4 m3 m5 m4 m1.5 m5 m2 m6 m2.5 m8 m3 m4 m5 m6 m2.5 m3 m4 1 No. of teeth 20 40 20 30 20 40 20 30 20 40 20 30 20 40 20 30 20 40 20 30 20 40 20 30 20 40 15 30 20 40 15 30 20 40 15 30 20 40 15 30 15 30 15 30 15 30 18 36 18 36 18 36 Precision grade Tooth hardness Heat treatment Material Pressure angle Gear teeth Shape B3 B4 B3 B4 B3 B4 B3 B4 B3 B4 B3 B4 B3 B4 B3 B4 B3 B4 B3 B4 B3 B4 B3 B4 B3 B4 B3 B4 B3 B5 B3 B4 B3 B5 B3 B4 B3 B4 B3 B3 B4 B3 B5 B3 B5 B3 B4 B3 B4 B3 B4 BT Specifications (less than194HB) — S45C 20° Gleason JIS B1704 oeHbda ic i.Outsidedia. Pitchdia. Hubdia. Bore A 10 10 10 10 10 12 15 12 12 15 15 12 15 15 20 16 20 20 25 20 20 20 25 10 25 25 12 15 12 16 30 35 16 20 20 20 25 25 12 15 16 20 20 20 6 8 8 8 8 6 8 8 H7 100 120 180

: 1978 16 25 25 30 22 32 30 35 25 38 35 45 32 40 45 50 40 50 60 70 50 60 80 90 60 70 16 25 80 22 30 90 85 30 40 35 50 50 60 60 70 70 80 38 55 46 60 60 70 H G F E D C B grade 3 100 120 120 100 150 160 100 200 120 240 160 320 120 150 180 108 144 20 40 30 45 25 50 40 60 30 60 50 75 40 80 60 90 50 80 60 80 22.5 45 30 60 37.5 75 45 90 60 75 90 45 90 54 72 146.34 101.46 123.3 121.76 110.45 154.13 162.34 112.03 202.93 134.44 243.52 179.25 324.69 122.34 152.93 104.44 183.49 109.76 81.62 22.41 40.59 33.13 46.24 28.01 50.73 44.18 61.65 33.61 60.88 55.22 77.07 44.81 81.17 66.27 92.48 56.01 88.32 67.22 89.62 26.11 45.88 34.81 61.17 43.51 76.46 52.22 91.76 69.62 87.03 51.01 91.46 61.23 Mounting distance 100 110 120 140 160 105 210 130 110 125 72 28 22 33 28 36 27 45 40 46 35 55 50 60 45 70 55 75 55 90 75 90 65 90 80 32 25 90 40 31 55 40 70 50 85 60 75 90 64 43 75 52

K Module 1.5~6

J E Total length F 52.77 49 13.78 15.07 18.63 18.53 18.66 18.54 25.06 26.87 25.54 25.01 31.06 34.22 34.16 32.37 40.48 35.56 43.78 39.73 48.53 47.71 50.81 45.85 62.11 58.45 66.59 53.92 17.23 17.85 68.92 55.33 20.59 21.6 78.16 65.05 31.81 28.75 43.88 37.31 98 75.36 48.74 42.4 63.61 52.5 68.48 62.56 34.27 28.52 40.01 34.95 I G H Crown toback length 30.41 38.34 12.59 11.54 13.93 11.75 15.23 16.39 21.24 16.9 20.88 19.24 26.55 21.2 26.17 27.09 26.86 26.5 31.46 32.77 37.48 31.8 36.76 38.48 43.1 42.41 42.34 10.4 14.63 43.01 42.93 11.2 17.17 43.6 48.52 19 22.71 26.8 29.26 54.81 54.69 27.41 32.34 38.01 40.43 38.61 48.49 20.5 21.96 22.81 26.76 A 8.6 B C D B3 Hub width 25 25 10.25 10 11.67 15 14.75 15 12.5 18 18 18 20 17 22.5 20 23.33 25 27.5 24 28.33 24 35 28 35 26 10 32.5 28 15.63 15 22.5 18 40 25 22.5 20 31.25 25 30 28 17.25 13 19 17 7 8 8.83 8 7.88 9 8 KSB • KSBY

Steel Bevel Gears

K J J B K K FD L J Spur Gears E E F I E F I G

G FD F I G H H H

A A A B B B C C C Gears D D D Helical B4 B5 BT * FD has die-forged finish.

Length of bore Face width Holding surface dia. Allowable torque (N·m) Allowable torque (kgf·m) Backlash Weight Catalog No. IJK Bending strength Surface durability Bending strength Surface durability (mm) (kg) Gears

16 27.37 5.82 0.65 0.59 0.07 0.12 KSB1.5-3020 Internal 9 0.05~0.15 17 17.05 4.04 0.44 0.41 0.04 0.063 KSB1.5-2030 23 37.56 13.1 1.52 1.33 0.16 0.26 KSB2-3020 11 0.06~0.16 22 21.34 9.07 1.01 0.92 0.10 0.14 KSB2-2030 30 45.61 26.9 3.21 2.75 0.33 0.55 KSB2.5-3020 15 0.07~0.17

28 27.42 18.7 2.14 1.91 0.22 0.25 KSB2.5-2030 Racks 31 57.14 44.9 5.45 4.58 0.56 0.83 KSB3-3020 17 0.08~0.18 37 34.71 31.2 3.63 3.18 0.37 0.50 KSB3-2030 40 78.59 98.2 12.3 10.0 1.25 1.91 KSB4-3020 20 0.12~0.27 43 46.89 68.1 8.20 6.95 0.84 1.10 KSB4-2030 50 91.22 215 27.6 22.0 2.81 4.13 KSB5-3020 30 0.14~0.34 56 54.83 150 18.4 15.3 1.87 2.34 KSB5-2030 & Pinions 15 28.36 5.02 0.47 0.51 0.05 0.10 KSB1.5-3015 CP Racks 8 0.05~0.15 15.5 10.72 2.60 0.24 0.26 0.02 0.028 KSB1.5-1530 18 37.4 12.1 1.18 1.24 0.12 0.21 KSB2-3015 11 0.06~0.16 19 16.81 6.28 0.59 0.64 0.06 0.064 KSB2-1530 Miter

24 44.21 24.9 2.48 2.54 0.25 0.41 KSB2.5-3015 Gears 15 0.07~0.17 29 16.42 12.9 1.24 1.32 0.13 0.15 KSB2.5-1530 30 47.78 45.6 4.60 4.65 0.47 0.83 KSB3-3015 20 0.08~0.18 41 19.56 23.6 2.30 2.41 0.23 0.31 KSB3-1530 36 70.1 104 10.9 10.7 1.11 1.64 KSB4-3015 25 0.12~0.27 46 32.2 54.0 5.43 5.51 0.55 0.66 KSB4-1530 Bevel 48 90.41 199 21.3 20.3 2.17 2.72 KSB5-3015 Gears 30 0.14~0.34 58 32.83 103 10.6 10.5 1.09 1.28 KSB5-1530 57 109.74 336 36.9 34.2 3.77 4.75 KSB6-3015 35 0.16~0.36 63 45.48 174 18.5 17.7 1.88 1.94 KSB6-1530 24 57.72 35.9 4.08 3.66 0.42 0.72 KSB2.5-3618 16 0.07~0.17 Gears

32 25.44 18.1 2.04 1.84 0.21 0.27 KSB2.5-1836 Screw 30 68.28 63.7 7.34 6.49 0.75 1.15 KSB3-3618 20 0.08~0.18 37 28.56 32.0 3.67 3.27 0.37 0.44 KSB3-1836 42 91.86 149 17.7 15.2 1.80 2.66 KSB4-3618 26 0.12~0.27 49 39.72 74.8 8.85 7.62 0.90 1.04 KSB4-1836 12 26.58 2.61 0.29 0.27 0.03 0.068 KSB1-4020

6 0.03~0.13 Worm 12 9.17 1.32 0.15 0.13 0.02 0.019 KSB1-2040 16 33.61 5.33 0.61 0.54 0.06 0.14 KSB1.25-4020 Gear Pair 8 0.04~0.14 17 13.22 2.69 0.31 0.27 0.03 0.046 KSB1.25-2040 22 39.64 9.47 1.11 0.97 0.11 0.27 KSB1.5-4020 10 0.05~0.15 24 17.28 4.77 0.56 0.49 0.06 0.089 KSB1.5-2040

27 48.46 24.2 2.92 2.46 0.30 0.51 KSB2-4020 Bevel 15 0.06~0.16

32 20.92 12.2 1.46 1.24 0.15 0.19 KSB2-2040 Gearboxes 35 60.28 49.0 6.04 4.99 0.62 1.09 KSB2.5-4020 20 0.07~0.17 41 24.56 24.7 3.02 2.52 0.31 0.40 KSB2.5-2040 38 73.81 80.4 10.1 8.20 1.03 1.68 KSB3-4020 22 0.08~0.18 47 29.61 40.5 5.06 4.13 0.52 0.70 KSB3-2040 45 102.39 185 24.1 18.9 2.46 3.34 KSB4-4020 Other 28 0.12~0.27 Products 62 42.78 93.3 12.0 9.51 1.23 1.47 KSB4-2040 50 138.92 327 43.9 33.3 4.47 5.63 KSB5-4020 30 0.14~0.34 63 57.84 165 21.9 16.8 2.24 2.67 KSB5-2040 58 158.56 600 83.2 61.2 8.48 7.77 KSB6-4020 40 0.16~0.36 70 61.11 302 41.6 30.8 4.24 4.08 KSB6-2040 61 219.2 1350 196 138 20.0 25.75 KSBY8-4020 50 0.20~0.45 90 96.39 679 98.1 69.3 10.0 9.41 KSBY8-2040

[Caution on Secondary Operations] a Please read “Caution on Performing Secondary Operations” (Page 452) when performing modifications and/or secondary operations for safety concerns. Inquiries are now being accepted on our website. 473 474 Other Bevel Screw Bevel Miter Internal Helical Spur Worm CP Racks Racks Products GearboxesGear Pair Gears Gears Gears & Pinions Gears Gears Gears [Caution onProduct Characteristics] KSB1-1845 KSB1-4518 KSB6-1545 KSB6-4515 KSB1.25-1845 KSB1.25-4518 KSBY8-1545 KSBY8-4515 KSB1.5-1845 KSB1.5-4518 KSB2-1845 KSB2-4518 KSB2.5-1845 KSB2.5-4518 KSB3-1845 KSB3-4518 KSB4-1845 KSB4-4518 KSB5-1845 KSB5-4518 KSB1-1545 KSB1-4515 KSB1.25-1545 KSB1.25-4515 KSB1.5-1545 KSB1.5-4515 KSB2-1545 KSB2-4515 KSB2.5-1545 KSB2.5-4515 KSB3-1545 KSB3-4515 KSB4-1545 KSB4-4515 KSB5-1545 KSB5-4515 short lead times lead with short productionservices  Catalog No. For not products categorized in our series', Stock Gear custom gear Steel Bevel Gears KSB • KSBY c b a

For convenienceinhandling,BTShapedGearshavetappedholesontheirholdingsurface.To findtheLdimensionsandtapsizes,please refer topage452. Dimensions oftheoutsidediameter, theoveralllengthandcrown to backlengthare alltheoretical values,andsomedifferences chamferingofthegear tips. willoccurduetothecorner The allowabletorques showninthetableare thecalculatedvaluesaccording totheassumedusageconditions.Pleaseseepage451formore details. errtoModule Gear ratio 2.5 3 m1 m m1.25 m8 m1.5 m2 m2.5 m3 m4 m5 m1 m1.25 m1.5 m2 m2.5 m3 m4 m5 6 No. of teeth 15 45 18 45 18 45 15 45 18 45 18 45 18 45 18 45 18 45 18 45 15 45 15 45 15 45 15 45 15 45 15 45 15 45 15 45 Precision grade Tooth hardness Heat treatment Material Pressure angle Gear teeth Shape B3 B4 B3 B3 B4 B3 B4 B3 B3 B4 B3 B4 B3 B4 B3 B4 B3 B4 B3 B4 B3 B4 B3 B4 B3 B4 B3 B4 BT B3 B4 B3 B5 BT B3 B5 Specifications (less than194HB) — S45C 20° Gleason JIS B1704 oeHbda ic i.Outsidedia. Pitchdia. Hubdia. Bore A 25 30 10 10 30 35 10 12 12 15 16 20 20 20 20 25 10 10 10 12 12 15 15 20 16 20 20 25 6 8 8 8 6 8 8 8 H7 160 100 200 100

: 1978 15 30 70 19 34 23 36 32 48 40 55 48 65 62 80 80 12 30 15 34 18 36 24 40 30 50 38 60 50 80 60 90 H G F E D C B grade 3 is available. For page details VI. see 270 120 360 112.5 135 180 225 112.5 135 180 225 18 45 90 22.5 56.25 27 67.5 36 90 45 54 72 90 15 45 18.75 56.25 22.5 67.5 30 90 37.5 45 60 75 106.03 272.24 141.39 362.99 113.64 136.37 181.82 102.87 227.28 113.43 136.12 181.5 226.87 88.37 20.57 45.46 25.72 56.82 30.86 68.18 41.15 90.91 51.44 61.72 82.3 17.67 45.37 22.09 56.72 26.54 68.06 35.35 90.75 44.18 53.02 70.69 Mounting distance 145 175 100 230 125 110 135 115 75 32 23 40 26 45 30 60 40 72 50 85 60 75 90 29 17 36 21 47 28 60 40 75 50 90 55 70

K Module 1~8

J E Total length F 67.19 50.28 16.34 16.95 89.04 72.62 20.66 18.53 21.97 21.1 99.93 83.74 28.69 27.91 33.31 35.06 38.04 41.86 48.28 51.16 55.82 59.43 12.51 11.77 15.85 14.61 23.19 20.44 29.8 30.4 38.41 38.35 45.17 40.74 54.6 50.79 I G H Crown toback length 34.73 40.3 10.02 14.57 42.67 58.36 12.52 15.46 12.02 17.35 53.56 69.49 16.03 23.14 17.04 28.92 19.05 34.71 22.06 41.28 25.07 47.85 10.06 12.33 13.92 17.59 15.89 26.12 19.86 32.65 23.84 34.18 26.78 42.24 A 6.95 8.43 B C D B3 Hub width 30 20 10 36.67 30 11.17 10 10.45 10 46.67 30 14.2 15 14.75 18 16.3 22 18 24 20.5 28 12.5 11 14 17 17.5 22 21.33 20 23.33 24 8.9 6 5 7.25 6 KSB • KSBY

Steel Bevel Gears

K J J B K K FD L J Spur Gears E E F I E F I G

G FD F I G H H H

A A A B B B C C C Gears D D D Helical B4 B5 BT * FD has die-forged finish.

15 30.73 3.35 0.35 0.34 0.04 0.11 KSB1-4518 Internal 7 0.03~0.13 15.5 10.31 1.33 0.14 0.14 0.01 0.019 KSB1-1845 16 37.86 6.67 0.72 0.68 0.07 0.17 KSB1.25-4518 9 0.04~0.14 19.5 12.16 2.65 0.29 0.27 0.03 0.038 KSB1.25-1845 18 45 11.7 1.29 1.19 0.13 0.28 KSB1.5-4518 11 0.05~0.15 21 16.51 4.64 0.51 0.47 0.05 0.063 KSB1.5-1845 Racks 25 62.24 26.8 3.05 2.74 0.31 0.65 KSB2-4518 14 0.06~0.16 27.5 23.11 10.7 1.22 1.09 0.12 0.16 KSB2-1845 31 76.53 53.4 6.20 5.44 0.63 1.23 KSB2.5-4518 18 0.07~0.17 31.5 26.82 21.2 2.48 2.16 0.25 0.28 KSB2.5-1845 37 92.96 90.5 10.7 9.23 1.09 2.05 KSB3-4518 21 0.08~0.18 & Pinions 36 33.41 36.0 4.29 3.67 0.44 0.46 KSB3-1845 CP Racks 45 122.33 220 26.8 22.4 2.73 4.69 KSB4-4518 29 0.12~0.27 46 45.83 87.3 10.7 8.91 1.09 1.01 KSB4-1845 51 156.56 411 51.8 41.9 5.28 8.31 KSB5-4518 34 0.14~0.34 Miter

52.5 56.9 164 20.7 16.7 2.11 1.95 KSB5-1845 Gears 9 32.02 2.84 0.27 0.29 0.027 0.078 KSB1-4515 6 0.03~0.13 12 10.05 0.98 0.09 0.10 0.0091 0.095 KSB1-1545 12 39.63 5.80 0.56 0.59 0.057 0.15 KSB1.25-4515 8 0.04~0.14 15 10.9 2.00 0.19 0.20 0.019 0.018 KSB1.25-1545 Bevel

17 46.58 10.3 1.02 1.05 0.10 0.25 KSB1.5-4515 Gears 10 0.05~0.15 22.5 14.75 3.56 0.34 0.36 0.035 0.041 KSB1.5-1545 26 59.04 26.4 2.68 2.69 0.27 0.60 KSB2-4515 15 0.06~0.16 29 19.13 9.10 0.89 0.93 0.091 0.096 KSB2-1545 35 72.84 53.6 5.55 5.46 0.57 1.22 KSB2.5-4515 20 0.07~0.17 37 20.51 18.5 1.85 1.89 0.19 0.19 KSB2.5-1545 Gears Screw 35 88.18 90.2 9.53 9.20 0.97 1.99 KSB3-4515 23 0.08~0.18 43 22.53 31.2 3.18 3.18 0.32 0.34 KSB3-1545 45 118.09 211 23.0 21.5 2.35 3.89 KSB4-4515 30 0.12~0.27 52 32.26 72.8 7.67 7.43 0.78 0.77 KSB4-1545 44 152.88 394 44.3 40.2 4.52 6.10 KSB5-4515 35 0.14~0.34 Worm 65 48.64 136 14.8 13.9 1.51 1.46 KSB5-1545 Gear Pair 62 169.26 751 87.0 76.6 8.87 18.0 KSB6-4515 50 0.16~0.36 86 49.77 259 39.9 26.4 4.06 2.61 KSB6-1545 67 255.92 1470 179 150 18.3 36.4 KSBY8-4515 50 0.20~0.45 93 61.77 506 59.7 51.6 6.09 5.80 KSBY8-1545 Bevel

[Caution on Secondary Operations] a Please read “Caution on Performing Secondary Operations” (Page 452) when performing modifications and/or Gearboxes secondary operations for safety concerns. Other Products

Inquiries are now being accepted on our website. 475 476 Other Bevel Screw Bevel Miter Internal Helical Spur Worm CP Racks Racks Products GearboxesGear Pair Gears Gears Gears & Pinions Gears Gears Gears [Caution onProduct Characteristics] [Caution on Product Characteristics] KSB3-1260 KSB3-6012 KSB2.5-1260 KSB2.5-6012 KSB2-1260 KSB2-6012 KSB1.5-1260 KSB1.5-6012 KSB1.5-1560 KSB1.5-6015 KSB2-1560 KSB2-6015 KSB2.5-1560 KSB2.5-6015 KSB3-1560 KSB3-6015 KSB4-1560 KSB4-6015 KSBY5-1560 KSBY5-6015 KSBY6-1560 KSBY6-6015 Catalog No. Catalog No. Steel Bevel Gears &PinionShafts Steel Bevel Gears KSB KSB • KSBY b a c b a

Dimensions oftheoutside diameter, theoveralllength andcrown tobacklengthare alltheoretical values,andsomedifferences chamferingofthegeartips. willoccurdueto thecorner The allowabletorques showninthetableare thecalculated valuesaccording totheassumed usageconditions.Pleaseseepage451for more details. For convenienceinhandling,BTShapedGearshavetappedholesontheirholdingsurface.To findtheLdimensionsandtapsizes,pleaserefer topage452. Dimensions oftheoutsidediameter, theoveralllengthandcrown tobacklengthare alltheoretical values,andsomedifferences chamferingofthegeartips. willoccurduetothecorner The allowabletorques showninthetableare thecalculatedvaluesaccording totheassumedusageconditions.Pleaseseepage451formore details. errtoModule Gear ratio errtoModule Gear ratio 5 4 m3 m2.5 m2 m1.5 m1.5 m2 m2.5 m3 m4 m5 m6 No. of teeth 12 60 12 60 12 60 12 60 No. of teeth 15 60 15 60 15 60 15 60 15 60 15 60 15 60 Thehardness ofageartoothis200to270HB. * Precision grade Tooth hardness Heat treatment Material Pressure angle Gear teeth Precision grade Tooth hardness Heat treatment Material Pressure angle Gear teeth Shape Pinions are thermalrefined. B8 B4 B8 B4 B8 B4 B8 B4 Shape B3 B4 B3 B4 B3 B4 B3 B4 B3 B5 B3 B3 BT BT Bore 25.25 20 20.2 20 15.2 15 12.2 12 • Shaft dia. Specifications Specifications (less than194HB) — S45C 20° Gleason JIS B1704 (less than194HB) — S45C 20° Gleason JIS B1704 oeHbda ic i.Outsidedia. Pitchdia. Hubdia. Bore A 12 10 15 12 20 15 20 16 25 25 30 25 35 8 * H7 u i.Pitchdia. Hub dia. 30 80 25 70 20 60 15 50 I H G F E D C B 180 200

: 1978 : 1978 18 50 24 60 30 70 38 80 50 85 60 75 H G F E D C B grade 3 grade 3 180 150 120 36 30 24 18 90 * 120 150 180 240 300 360 22.5 90 30 37.5 45 60 75 90 Outside dia. 180.65 150.54 120.43 44.48 37.06 29.65 22.24 90.33 120.55 150.69 180.83 241.1 301.36 106.66 361.66 26.66 90.41 35.55 44.44 53.33 71.10 88.9 Mounting distance 100 60 83 50 66 40 50 30 E Mounting distance 112 150 185 220 100 56 32 75 42 94 53

J 64 80 80 Module 1.5~6 Module 1.5~3 K IM Total length 172.19 143.1 117.08 G 47.43 39.81 31.85 97.06 23.89 H J E Total length F 23.01 24.2 31.01 31.6 39.02 40 44.1 47.97 62.03 59.2 75.03 53.97 B 85.17 68.16 I 10.85 43.64 36.36 29.09 21.82 Crown toback G 8.7 6.56 5.42 C H length D F Crown toback length 11.52 21.58 15.69 28.1 19.87 35.63 23.04 43.15 31.39 52.2 36.74 45.22 42.08 58.31 A

Hub width B 25 20 16 12 A C 9.4 7.5 5.6 4.7 D B3 Length ofbore Hub width 32.19 41 28.1 34 22.08 24 17.06 21 10.43 12 14.25 16 18.06 20 21.12 25 28.75 36 33.13 20 38.13 25 B8 • shaft KSB • KSBY

Steel Bevel Gears

K J J B K FD Spur Gears E E F I F I G

G FD H H

A A B B C C Gears D D Helical B4 B5 BT * FD has die-forged finish.

21 65.38 17.3 1.75 1.77 0.18 0.62 KSB1.5-6015 Internal 12 0.05~0.15 22.5 15.54 4.46 0.44 0.45 0.045 0.043 KSB1.5-1560 27 87.02 41.3 4.30 4.21 0.44 1.35 KSB2-6015 16 0.06~0.16 30 18.06 10.6 1.07 1.08 0.11 0.10 KSB2-1560 34 108.64 80.2 8.54 8.18 0.87 2.51 KSB2.5-6015 20 0.07~0.17 37.5 20.57 20.6 2.13 2.10 0.22 0.21 KSB2.5-1560 Racks 41 134.4 130 14.2 13.3 1.44 4.16 KSB3-6015 22 0.08~0.18 43 31.58 33.5 3.54 3.42 0.36 0.36 KSB3-1560 53 174.03 328 37.0 33.5 3.77 6.00 KSB4-6015 32 0.12~0.27 60 36.12 84.5 9.24 8.62 0.94 0.91 KSB4-1560 45 218.79 642 74.4 65.4 7.59 17.5 KSBY5-6015 40 0.14~0.34 & Pinions 73 49.15 165 18.6 16.8 1.90 1.58 KSBY5-1560 CP Racks 56 267.73 1050 126 107 12.8 30.7 KSBY6-6015 45 0.16~0.36 82 54.92 270 31.5 27.5 3.21 2.83 KSBY6-1560 [Caution on Secondary Operations] a Please read “Caution on Performing Secondary Operations” (Page 452) when performing modifications and/or Miter secondary operations for safety concerns. Gears Bevel KSB Gears

Steel Bevel Gears & Pinion Shafts Gears J Screw K E F I G H

A Worm

B Gear Pair C D

B4 Bevel

Face width Holding surface dia. Shaft length Allowable torque (N·m) Allowable torque (kgf·m) Backlash Weight Gearboxes Screw size Catalog No. JKM Bending strength Surface durability Bending strength Surface durability (mm) (kg) 65.52 — — 18.0 1.41 1.83 0.14 0.62 KSB1.5-6012 12 0.05~0.15 — 80 M5 4.01 0.46 0.41 0.047 0.097 KSB1.5-1260

86.96 — — 42.6 3.43 4.34 0.35 1.34 KSB2-6012 Other

16 0.06~0.16 Products — 95 M6 9.50 1.12 0.97 0.11 0.19 KSB2-1260 108.8 — — 83.2 6.85 8.48 0.70 2.54 KSB2.5-6012 20 0.07~0.17 — 115 M8 18.5 2.23 1.89 0.23 0.40 KSB2.5-1260 134.73 — — 135 11.4 13.8 1.16 4.18 KSB3-6012 22 0.08~0.18 — 140 M8 30.1 3.70 3.07 0.38 0.74 KSB3-1260 [Caution on Secondary Operations] a Please read “Caution on Performing Secondary Operations” (Page 452) when performing modifications and/or secondary operations for safety concerns.

Inquiries are now being accepted on our website. 477 478 Other Bevel Screw Bevel Miter Internal Helical Spur Worm CP Racks Racks Products GearboxesGear Pair Gears Gears Gears & Pinions Gears Gears Gears [Caution on Product Characteristics] KSUB1.5-2030 KSUB1.5-3020 KSUB2-2030 KSUB2-3020 KSUB2.5-2030 KSUB2.5-3020 KSUB3-2030 KSUB3-3020 KSUB1.5-2040 KSUB1.5-4020 KSUB2-2040 KSUB2-4020 KSUB2.5-2040 KSUB2.5-4020 KSUB3-2040 KSUB3-4020 KSUB1.5-1545 KSUB1.5-4515 KSUB2-1545 KSUB2-4515 KSUB2.5-1545 KSUB2.5-4515 KSUB3-1545 KSUB3-4515 short lead times lead with short productionservices  Catalog No. For not products categorized in our series', Stock Gear custom gear Stainless SteelBevel Gears KSUB b a

: 1978 25 30 35 35 40 45 50 60 25 38 32 50 40 60 50 70 18 36 24 60 30 60 38 80 H G F E D C B grade 3 is available. For page details VI. see 100 120 112.5 135 30 45 40 60 50 75 60 90 30 60 40 80 50 60 22.5 67.5 30 90 37.5 45 101.46 121.76 113.43 136.12 33.13 46.24 44.18 61.65 55.22 77.07 66.27 92.48 33.61 60.88 44.81 81.17 56.01 67.22 26.54 68.06 35.35 90.75 44.18 53.02 Mounting distance 33 28 45 40 55 50 70 55 46 35 60 45 75 55 90 65 47 28 60 40 75 50 90 55

K Module 1.5,22.53

J E Total length F 18.63 18.53 25.06 26.87 31.06 34.22 40.48 35.56 25.54 25.01 34.16 32.37 43.78 39.73 50.81 45.85 23.20 20.44 29.8 30.4 38.41 38.35 45.17 40.74 I G H Crown toback length 11.54 13.93 16.39 21.24 19.24 26.55 27.09 26.86 16.9 20.88 21.2 26.17 26.5 31.46 31.8 36.76 13.92 17.59 15.89 26.12 19.86 32.65 23.84 34.18 A B C D Hub width 13.33 15 14.16 18 21.66 17 14.75 15 18 18 22.5 20 27.5 24 12.5 11 14 17 17.5 22 21.33 20 8.83 8 B3 KSUB

Stainless Steel Bevel Gears

J K E Spur Gears F I G H

A B C D Gears Helical B4

16 27.37 3.22 0.46 0.33 0.047 0.12 KSUB1.5-3020 Internal 9 0.05~0.15 17 17.05 2.23 0.31 0.23 0.032 0.063 KSUB1.5-2030 23 37.56 7.22 1.08 0.74 0.11 0.26 KSUB2-3020 11 0.06~0.16 22 21.34 5.01 0.72 0.51 0.074 0.16 KSUB2-2030 30 45.61 14.9 2.28 1.52 0.23 0.54 KSUB2.5-3020

15 0.07~0.17 Racks 28 27.42 10.3 1.52 1.05 0.15 0.28 KSUB2.5-2030 31 57.14 24.8 3.87 2.53 0.39 0.94 KSUB3-3020 17 0.08~0.18 37 34.71 17.2 2.58 1.76 0.26 0.55 KSUB3-2030 22 39.64 5.23 0.79 0.53 0.081 0.27 KSUB1.5-4020 10 0.05~0.15 24 17.28 2.64 0.40 0.27 0.040 0.088 KSUB1.5-2040

27 48.46 13.4 2.07 1.36 0.21 0.61 KSUB2-4020 & Pinions 15 0.06~0.16 CP Racks 32 20.92 6.72 1.04 0.69 0.11 0.19 KSUB2-2040 35 60.28 27.1 4.29 2.76 0.44 1.21 KSUB2.5-4020 20 0.07~0.17 41 24.56 13.6 2.15 1.39 0.22 0.40 KSUB2.5-2040

38 73.81 44.4 7.19 4.53 0.73 1.86 KSUB3-4020 Miter 22 0.08~0.18 Gears 47 29.61 22.4 3.60 2.28 0.37 0.69 KSUB3-2040 17 46.58 5.70 0.72 0.58 0.074 0.25 KSUB1.5-4515 10 0.05~0.15 22.5 14.75 1.97 0.24 0.20 0.025 0.041 KSUB1.5-1545 26 59.04 14.6 1.90 1.49 0.19 0.80 KSUB2-4515 15 0.06~0.16

29 19.13 5.03 0.63 0.51 0.065 0.095 KSUB2-1545 Bevel Gears 35 72.84 29.6 3.94 3.02 0.40 1.36 KSUB2.5-4515 20 0.07~0.17 37 20.51 10.2 1.31 1.04 0.13 0.19 KSUB2.5-1545 35 88.18 49.9 6.77 5.09 0.69 2.32 KSUB3-4515 23 0.08~0.18 43 22.53 17.2 2.26 1.76 0.23 0.34 KSUB3-1545 Gears [Caution on Secondary Operations] a Please read “Caution on Performing Secondary Operations” (Page 452) when performing modifications and/or Screw secondary operations for safety concerns. Worm Gear Pair KGCU-M Miter Gear Kit

Installment : Intersecting axes gears Bevel

Gear Type : Miter Gears Gearboxes Gears : KSM2-25 KPM2-25 Gear Ratio : 1 Weight : Approx. 1kg Other Products Use of bevel gears allows the changing of the shaft angle by 90 degrees. Applications include the changing of the direction of power.

Inquiries are now being accepted on our website. 479 480 Other Bevel Screw Bevel Miter Internal Helical Spur Worm CP Racks Racks Products GearboxesGear Pair Gears Gears Gears & Pinions Gears Gears Gears [Caution onProduct Characteristics] KPB1.5-2030 KPB1.5-3020 KPB2-2030 KPB2-3020 KPB2.5-2030 KPB2.5-3020 KPB3-2030 KPB3-3020 KPB1-2040 KPB1-4020 KPB1.25-2040 KPB1.25-4020 KPB1.5-2040 KPB1.5-4020 KPB2-2040 KPB2-4020 KPB2.5-2040 KPB2.5-4020 KPB3-2040 KPB3-4020 KPB1.5-1545 KPB1.5-4515 KPB2-1545 KPB2-4515 KPB2.5-1545 KPB2.5-4515 KPB3-1545 KPB3-4515 short lead times lead with short productionservices  Catalog No. Plastic Bevel Gears For not products categorized in our series', Stock Gear custom gear KPB b a d c

The allowabletorques showninthetableare calculatedvaluesaccording totheassumedusageconditions.Pleaseseepage451formore details. tooth diameter, andbacklash. chamfering ofthegeartips. Without lubrication,usingplasticgearsin pairs maygenerateheatanddilation.Itisrecommended tomatethemwithsteelgears. Without Significant variationsintemperature orhumiditycancausedimensionalchangesinplasticgears(MCNylongears),including bore size(H8whenproduced), Dimensions oftheoutsidediameter, theoveralllengthandcrown tobacklengthare alltheoretical values,andsomedifferences willoccurduetothecorner errtoModule Gear ratio 1.5 2 3 m1.5 m2 m2.5 m3 m1 m1.25 m1.5 m2 m2.5 m3 m1.5 m2 m2.5 m3 No. of teeth 20 30 20 30 20 30 20 30 20 40 20 40 20 40 20 40 20 40 20 40 15 45 15 45 15 45 15 45 to thevalueshownintable. * Precision grade Tooth hardness Heat treatment Material Pressure angle Gear teeth The precision gradeofthis product isequivalent Shape B3 B4 B3 B4 B3 B4 B3 B4 B3 B4 B3 B4 B3 B4 B3 B4 B3 B4 B3 B4 B3 B4 B3 B4 B3 B4 B3 B4 Specifications (115~120HRR) — MC901 20° Gleason JIS B1704 oeHbda ic i.Outsidedia. Pitchdia. Hubdia. Bore 10 10 10 12 15 15 15 10 10 12 12 12 15 16 20 10 10 12 12 15 15 20 H G F E D C B A 8 6 8 8 8 8

: 1978 25 30 35 35 40 45 50 60 16 25 22 32 25 38 32 40 40 50 50 60 18 40 24 60 30 60 38 80 grade 4 is available. For page details VI. see 100 120 112.5 135 * 30 45 40 60 50 75 60 90 20 40 25 50 30 60 40 80 50 60 22.5 67.5 30 90 37.5 45 101.47 121.76 113.43 136.12 33.13 46.24 44.18 61.65 55.22 77.07 66.27 92.48 22.41 40.59 28.01 50.73 33.61 60.88 44.81 81.17 56.01 67.22 26.54 68.06 35.35 90.75 44.18 53.02 Mounting distance 33 28 45 40 55 50 70 55 28 22 36 27 46 35 60 45 75 55 90 65 47 28 60 40 75 50 90 55

K Module 1~3

J E Total length F 18.63 18.53 25.06 26.87 31.06 34.22 40.48 35.56 13.78 15.07 18.66 18.54 25.54 25.01 34.16 32.37 43.78 39.73 50.81 45.85 23.20 20.44 29.8 30.4 38.41 38.35 45.17 40.74 I G H Crown toback length 11.54 13.93 16.39 21.24 19.24 26.55 27.09 26.86 12.59 11.75 15.23 16.9 20.88 21.2 26.17 26.5 31.47 31.8 36.76 13.92 17.59 15.89 26.12 19.86 32.65 23.84 34.18 A 8.6 B C D Hub width 13.33 15 14.16 18 21.66 17 10.25 10 14.75 15 18 18 22.5 20 27.5 24 12.5 11 14 17 17.5 22 21.33 20 8.83 8 7 8 B3 KPB

Plastic Bevel Gears

J K E Spur Gears F I G H

A B C D Gears Helical B4

16 27.37 1.61 0.16 0.018 KPB1.5-3020 Internal 9 — — 0~0.25 17 17.05 0.87 0.089 0.0093 KPB1.5-2030 23 37.56 3.65 0.37 0.039 KPB2-3020 11 — — 0~0.26 22 21.34 1.97 0.20 0.024 KPB2-2030 30 45.61 7.46 0.76 0.081 KPB2.5-3020

15 — — 0~0.27 Racks 28 27.42 4.04 0.41 0.042 KPB2.5-2030 31 57.14 12.5 1.28 0.14 KPB3-3020 17 — — 0~0.28 37 34.71 6.77 0.69 0.082 KPB3-2030 12 26.58 0.74 0.075 0.010 KPB1-4020 6 — — 0~0.23 12 9.17 0.28 0.028 0.0029 KPB1-2040

16 33.61 1.50 0.15 0.021 KPB1.25-4020 & Pinions 8 — — 0~0.24 CP Racks 17 13.22 0.56 0.058 0.0068 KPB1.25-2040 22 39.64 2.66 0.27 0.039 KPB1.5-4020 10 — — 0~0.25 24 17.28 1.00 0.10 0.013 KPB1.5-2040

27 48.46 6.72 0.69 0.076 KPB2-4020 Miter 15 — — 0~0.26 Gears 32 20.92 2.52 0.26 0.028 KPB2-2040 35 60.28 13.5 1.38 0.16 KPB2.5-4020 20 — — 0~0.27 41 24.56 5.08 0.52 0.060 KPB2.5-2040 38 73.81 22.4 2.29 0.25 KPB3-4020 22 — — 0~0.28

47 29.61 8.42 0.86 0.10 KPB3-2040 Bevel Gears 17 46.58 3.18 0.32 0.040 KPB1.5-4515 10 — — 0~0.25 22.5 14.75 0.68 0.070 0.0061 KPB1.5-1545 26 59.04 8.07 0.82 0.12 KPB2-4515 15 — — 0~0.26 29 19.13 1.73 0.18 0.014 KPB2-1545 Gears 35 72.84 16.3 1.66 0.20 KPB2.5-4515 Screw 20 — — 0~0.27 37 20.51 3.50 0.36 0.028 KPB2.5-1545 35 88.18 27.6 2.81 0.35 KPB3-4515 23 — — 0~0.28 43 22.54 5.92 0.60 0.050 KPB3-1545 [Caution on Secondary Operations] a Please read “Caution on Performing Secondary Operations” (Page 452) when performing modifications and/or secondary operations for safety concerns. Worm b Plastic gears are susceptible to the effects of temperature and moisture. Dimensional changes may occur while performing secondary opera- Gear Pair tions and during post-machining operations.

KGCU-M Miter Gear Kit Bevel Gearboxes

Installment : Intersecting axes gears Gear Type : Miter Gears Gears : KSM2-25

KPM2-25 Other

Gear Ratio : 1 Products Weight : Approx. 1kg

Use of bevel gears allows the changing of the shaft angle by 90 degrees. Applications include the changing of the direction of power.

Inquiries are now being accepted on our website. 481 482 Other Bevel Screw Bevel Miter Internal Helical Spur Worm CP Racks Racks Products GearboxesGear Pair Gears Gears Gears & Pinions Gears Gears Gears [Caution on Product Characteristics] Material :Oilimpregnated sintered bronze. KDB0.5-2040 KDB0.5-4020 KDB0.8-2040 KDB0.8-4020 KDB1-2040 KDB1-4020 KBB40612 KBB30507 Catalog No. Catalog No. Sintered MetalBushings KBB Injection MoldedBevel Gears KDB c b a

To findthedimensionaltolerance of thesegears,pleaseseetheDimensionalTolerance Table. The bore toleranceisgenerally-0.05to-0.3butmaybe+valuesatthecentralportionofhole. The allowabletorques showninthetableare thecalculatedvaluesaccording totheassumedusageconditions.Pleaseseepage451formore details. ..o uhn O.D. ofbushing I.D. ofbushing errtoMdl o ftehShape No. ofteeth Module Gear ratio L D d 2 4 3 0 +0.02 0 +0.02 m0.5 m0.8 m1 6 5 — +0.02 +0.02 — 0.01 0.01 bore ofthegears. bearing metalonidlergearsortoreduce the Injection MoldedGears.Theycanbeusedas bushings thatcanbepressed intostandard The tableshowsaseriesofstandard metal 20 40 20 40 20 40 Length Precision grade Tooth hardness Heat treatment Material Pressure angle Gear teeth 12 7 0 — — 0 0.3 0.01 B1 B9 B1 B9 B1 B9 DB1 DB0.8 Specifications Products thatcan (110~120HRR) — Duracon(M90-44) 20° Gleason JIS B1704 use thebushing oeHbda ic i.Outsidedia. Pitchdia. Hubdia. Bore G F E D C B A 3 4 4 5 5 6

: 1978 grade 6 12 12 15 15 18 8 10 20 16 32 20 40 11.2 20.29 17.92 32.47 22.4 40.59 Mounting distance Module 16 12 24 18 30 22 Sintered MetalSintered Bushings J E L

Total length F 0.5~1 G 11.5 11.91 14.49 14.45 8.46 8.33 H

Crown toback length A 10.47 10.6 12.59 6.3 7.29 d 8.48 B D D T8 B1 KDB

Injection Molded Bevel Gears

K J Spur Gears E F

G I H

A B Gears D Helical B9

Hub width Length of bore Face width Holding surface dia. Allowable torque (N·m) Allowable torque (kgf·m) Backlash Weight Catalog No. HIJK Bending strength Bending strength (mm) (g) Gears

4 7 14.41 0.24 0.025 2.00 KDB0.5-4020 Internal 2.5 0 ~ 0.30 4 — — 0.092 0.0094 0.54 KDB0.5-2040 6 10 24.17 0.91 0.093 6.26 KDB0.8-4020 3.5 0 ~ 0.48 5 — — 0.34 0.035 1.87 KDB0.8-2040 7.5 12.5 30.44 1.59 0.16 11.9 KDB1-4020

4.5 0 ~ 0.60 Racks 7 — — 0.60 0.061 3.54 KDB1-2040 [Caution on Secondary Operations] a Avoid performing secondary operations as reworking material may expose air bubbles (voids).

 Dimensional tolerance table(Unit : mm) & Pinions CP Racks Range Tolerance

below 3 mm ±0.20 3 up to 6 mm ±0.25 Miter 6 up to 10 mm ±0.30 Gears 10 up to 18 mm ±0.35 18 up to 30 mm ±0.40 30 mm up ±0.50 Bevel Gears Gears Screw Worm Gear Pair Bevel Gearboxes Other Products

Inquiries are now being accepted on our website. 483 484 Other Bevel Screw Bevel Miter Internal Helical Spur Worm CP Racks Racks Products GearboxesGear Pair Gears Gears Gears & Pinions Gears Gears Gears Gears differs from othermitergears. The catalognumbersystemsofKKSPGround SpiralMiter K 

Catalog NumberofNISSEISpiralBevel Gears KSP KSP 031 001 G F L Ground SpiralMiterGears KKSP (Finished Shape) Products Shape Hand ofSpiral(L) Type (SpiralMiterGears) (31 mm) OD oftheLargergear Gear Ratio(1) Surface finish(Ground) areas duringcarburizing.  Type U-HubmaskedtoAllowSecondary Operations Type F-FinishedStyle 4. Three gearratios:1,1.5 and2 3. Modulerangefrom 1.5 to 6 2. Superiorperformancewithregard tohighspeed,lownoise, 1. JISGrade0,highstrength, highprecision products The heavylinesinthefigure belowindicatethemasked   and lowvibration. Products Style The CharacteristicsofKKSPSpiralBevel Gears KKSP Ground Spiral Bevel Gears  Notes about the Transmission Capability Table

1. The values given in the table are for a service factor of 1.  Service Factor Sf Using the table on the right, please modify the value ac- Impact from Load Side of Machine

cording to the actual conditions. Load torque compensa- Impact from Prime Mover Spur Uniform Load Medium Impact Load Heavy Impact Load Gears tion is calculated from the load torque at the output shaft x Uniform Load 1.0 1.25 1.75 service factor (Sf). (Motor, Turbine, Hydraulic Motor) 2. For speed increaser applications (where the gear is the Light Impact Load 1.25 1.5 2.0 driver and the pinion is driven), the torque on the pinion is (Multicylinder Engine) Gears Helical Medium Impact Load 1.5 1.75 2.25 the value in the table multiplied by the speed ratio. (Single Cylinder Engine) NOTE 1: For speed ratio of 1/1.5, the torque on the pinion is 1/1.5 times the value given in the table.

 Gears Transmission Capability Table (Speed Ratio: 1) Upper Transmission Capability (kw) Lower Torque (N • m) Internal Rotation(rpm) Model 50 100 300 600 900 1200 1800 3000 0.035 0.068 0.195 0.375 0.548 0.716 1.04 1.65 KKSP031001 6.65 6.51 6.20 5.98 5.82 5.69 5.51 5.25 0.092 0.179 0.511 0.980 1.43 1.86 2.69 4.25 KKSP040001

17.6 17.2 16.3 15.6 15.2 14.8 14.3 13.5 Racks 0.211 0.412 1.17 2.23 3.25 4.22 6.08 9.55 KKSP053001 40.4 39.3 37.3 35.6 34.5 33.6 32.3 30.4 0.367 0.715 2.02 3.85 5.59 7.26 10.4 16.3 KKSP066001 70.2 68.3 64.4 61.4 59.3 57.8 55.4 52.0 0.577 1.12 3.16 6.00 8.68 11.2 16.1 25.1 KKSP078001 109.8 106.9 101.0 95.5 92.2 89.5 85.5 79.8 0.901 1.75 4.91 9.31 13.5 17.4 24.9 38.6 & Pinions

KKSP092001 CP Racks 172.6 166.7 156.9 148.1 143.2 138.3 132.4 122.6 1.44 2.78 7.80 14.7 21.2 27.4 39.1 60.3 KKSP105001 274.6 265.8 248.1 234.4 225.6 218.7 207.9 192.2 2.33 4.50 12.6 23.6 34.0 43.7 62.0 95.0 KKSP132001 445.2 430.5 400.1 376.6 360.9 348.1 329.5 302.0 Miter

3.68 7.10 19.7 37.0 53.0 68.1 96.2 146 Gears KKSP157001 704.1 678.6 628.6 589.4 562.9 542.3 510.9 466.8 5.31 10.2 28.3 52.8 75.5 96.8 136 206 KKSP184001 1010 976.7 901.2 841.4 801.2 770.8 722.8 656.1

 Transmission Capability Table(Speed Ratio: 1.5) Upper Transmission Capability (kw) Lower Torque(N • m) Bevel Gears Pinion Rotation(rpm) Model 50 100 300 600 900 1200 1800 3000 0.077 0.151 0.432 0.830 1.21 1.58 2.29 3.64 KKSP0481.5 22.2 21.6 20.6 19.8 19.3 18.9 18.2 17.4 0.159 0.309 0.882 1.69 2.46 3.21 4.64 7.33 KKSP0611.5 45.4 44.3 42.2 40.4 39.2 38.3 37.0 35.0 0.277 0.540 1.53 2.93 4.27 5.55 8.00 12.6 Gears KKSP0741.5 Screw 79.4 77.4 73.4 70.1 68.0 66.3 63.7 60.1 0.466 0.908 2.57 4.90 7.12 9.24 13.3 20.8 KKSP0901.5 133.4 130.4 122.6 116.7 113.8 110.8 105.9 99.0 0.700 1.36 3.84 7.31 10.6 13.7 19.7 30.7 KKSP1051.5 201.0 195.2 183.4 174.6 168.7 163.8 156.9 147.1 1.03 2.00 5.63 10.7 15.5 20.0 28.6 44.5

KKSP1241.5 Worm 295.2 286.4 268.7 255.0 246.1 239.3 227.5 212.8

1.56 3.03 8.51 16.1 23.2 30.1 42.9 66.4 Gear Pair KKSP1411.5 448.2 434.4 406.0 384.4 370.7 358.9 341.3 317.7 2.27 4.39 12.3 23.2 33.4 43.1 61.4 94.6 KKSP1631.5 650.2 628.6 587.4 554.1 532.5 514.8 489.4 452.1 2.92 5.64 15.8 29.7 42.7 55.1 78.3 120 KKSP1811.5 836.5 809.0 754.1 710.0 680.6 658.0 623.7 574.7 Bevel Gearboxes  Transmission Capability Table(Speed Ratio: 2) Upper Transmission Capability (kw) Lower Torque (N • m) Pinion Rotation(rpm) Model 50 100 300 600 900 1200 1800 3000 0.025 0.049 0.142 0.275 0.404 0.528 0.770 1.23

KKSP039002 Other 9.63 9.45 9.07 8.76 8.57 8.41 8.17 7.83 0.075 0.147 0.423 0.814 1.19 1.55 2.26 3.59 Products KKSP056002 28.8 28.1 27.0 26.0 25.3 24.8 23.9 22.8 0.185 0.361 1.03 1.98 2.89 3.76 5.45 8.61 KKSP075002 70.7 69.0 65.7 63.1 61.3 59.9 57.9 54.8 0.364 0.710 2.02 3.86 5.62 7.31 10.5 16.6 KKSP096002 139.3 135.3 128.5 122.6 119.6 116.7 111.8 105.9 0.649 1.26 3.58 6.82 9.90 12.9 18.5 29.0 KKSP119002 248.1 241.2 227.5 217.7 209.9 205.0 196.1 184.4 1.07 2.08 5.87 11.2 16.2 21.0 30.1 46.9 KKSP145002 408.9 397.2 373.6 356.0 343.2 333.4 319.7 298.1 1.78 3.45 9.72 18.4 26.6 34.5 49.3 76.5 KKSP172002 680.6 660.0 618.8 587.4 565.8 549.2 523.7 487.4 485 KKSP Module 1.5~6 Nissei Ground Spiral Miter Gears E

Specifications Precision grade JIS B 1704 : 1978 grade 0 Gear teeth Gleason A B C D

Spur Pressure angle 20° Gears Helix angle 35° Material SCM415* Heat treatment Overall carburizing F Tooth hardness ** 60~63HRC G * Module 3.5 and larger are made of SCM420.

Gears A H

Helical ** Tooth Hardness for module 2 and 2.5 is between 80 to 83 HRA.

Direction Outside dia. Holding surface dia. Bore Hub dia. Length of bore Gear ratio Module No. of teeth Pitch dia. Face width Shape Catalog No. of spiral ABCH7 DE KKSP031001GF L L KKSP031001GF R m1.5 20 R 30 7 A 30.5 16.2 12 22 13 Gears

Internal KKSP040001GF L L KKSP040001GF R m2 20 R 40 9 B 40 22.5 14 31 14 KKSP053001GF L L KKSP053001GF R m2.5 21 R 52.5 12 B 53 31 19 38 20 KKSP066001GF L L KKSP066001GF R m3 21 R 63 15 B 65 33.6 23 47 25 KKSP078001GF L L Racks KKSP078001GF R m3.5 22 R 77 18 B 78 43.1 27 54 27 1 KKSP092001GF L L KKSP092001GF R m4 22 R 88 21 B 91 48.6 30 63 32 KKSP105001GF L L KKSP105001GF R m4.5 23 R 103.5 25 C 105 50 32 70 35 KKSP132001GF L L KKSP132001GF R m5 26 R 130 29 C 132 64 36 82 41 & Pinions

CP Racks KKSP157001GF L L KKSP157001GF R m5.5 28 R 154 34 C 157 76 40 92 47 KKSP184001GF L L KKSP184001GF R m6 30 R 180 38 C 184 84 48 101 51 [Caution on Product Characteristics] a The allowable torque is calculated by converting the output torque (600 rpm) on page 485 to kgf/m, according to assumed usage conditions. Miter Gears b These gears produce axial thrust forces. See page 452 for more details. KKSP Module 1.5~6 Nissei Ground Spiral Miter Gears Bevel

Gears E Specifications

Precision grade JIS B 1704 : 1978 grade 0 Gear teeth Gleason A B D Pressure angle 20° C Helix angle

Direction Outside dia. Holding surface dia. Bore Hub dia. Length of bore Gear ratio Module No. of teeth Pitch dia. Face width Shape Catalog No. of spiral ABCH7 DE KKSP031001GU L L KKSP031001GU R m1.5 20 R 30 7 A 30.5 16.5 10 22 13 Bevel KKSP040001GU L m2 20 L 40 9 B 40 22.5 12 31 14

Gearboxes KKSP040001GU R R KKSP053001GU L L KKSP053001GU R m2.5 21 R 52.5 12 B 53 31 14 38 20 KKSP066001GU L L KKSP066001GU R m3 21 R 63 15 B 65 33.5 16 47 25 KKSP078001GU L L Other KKSP078001GU R m3.5 22 R 77 18 B 78 43 20 54 27

Products 1 KKSP092001GU L L KKSP092001GU R m4 22 R 88 21 B 91 49 22 63 32 KKSP105001GU L L KKSP105001GU R m4.5 23 R 103.5 25 C 105 50 26 70 35 KKSP132001GU L L KKSP132001GU R m5 26 R 130 29 C 132 64 30 82 41 KKSP157001GU L L KKSP157001GU R m5.5 28 R 154 34 C 157 76 32 92 47 KKSP184001GU L L KKSP184001GU R m6 30 R 180 38 C 184 84 40 101 51 [Caution on Product Characteristics] a The allowable torque is calculated by converting the output torque (600 rpm) on page 485 to kgf/m, according to assumed usage conditions. 486 b These gears produce axial thrust forces. See page 452 for more details. KKSP

E E Ground Spiral Miter Gears D C B A C A D B Spur Gears

F F

G G

B C Gears H H Helical

Hub width Total length Mounting distance Allowable torque Backlash Weight Keyway Catalog No. FGH (kgf·m) (mm) (kg) KKSP031001GF L 6 15 25 4 x 1.8 0.61 0 ~0.05 0.04 KKSP031001GF R Gears

KKSP040001GF L Internal 7 16.5 30 5 x 2.3 1.59 0 ~0.05 0.08 KKSP040001GF R KKSP053001GF L 8 22.8 40 6 x 2.8 3.63 0.05~0.10 0.18 KKSP053001GF R KKSP066001GF L 13 29.5 50 7 x 3 6.26 0.05~0.10 0.34 KKSP066001GF R KKSP078001GF L 12 32 57 8 x 3.3 9.74 0.05~0.10 0.54 KKSP078001GF R Racks KKSP092001GF L 14 38 66 8 x 3.3 15.1 0.05~0.10 0.88 KKSP092001GF R KKSP105001GF L 14 39 72 10 x 3.3 23.9 0.05~0.10 1.25 KKSP105001GF R KKSP132001GF L 14 45 88 10 x 3.3 38.4 0.05~0.10 2.39 KKSP132001GF R & Pinions

KKSP157001GF L CP Racks 20 53.5 105 12 x 3.3 60.1 0.05~0.10 3.71 KKSP157001GF R KKSP184001GF L 17 56.5 118 14 x 3.8 85.8 0.05~0.10 5.55 KKSP184001GF R [Caution on Secondary Operations] a No secondary operations can be performed on these precision finished gears due to Miter the applied carburizing process. Gears KKSP

Ground Spiral Miter Gears Bevel

E E Gears A C B D A D C B Gears Screw

F F G B G C H H Worm Gear Pair Hub width Total length Mounting distance Allowable gear Backlash Weight Machinable Catalog No. FGH max. bore torque (kgf·m) (mm) (kg) KKSP031001GU L 6 15 25 12 0.61 0 ~0.05 0.04 KKSP031001GU R Bevel 7 16.5 30 16 1.59 0 ~0.05 0.09 KKSP040001GU L

KKSP040001GU R Gearboxes KKSP053001GU L 8 22.8 40 22 3.63 0.05~0.10 0.21 KKSP053001GU R KKSP066001GU L 13 29.5 50 25 6.26 0.05~0.10 0.39 KKSP066001GU R KKSP078001GU L 12 32 57 32 9.74 0.05~0.10 0.59 KKSP078001GU R Other KKSP092001GU L Products 14 38 66 38 15.1 0.05~0.10 0.96 KKSP092001GU R KKSP105001GU L 14 39 72 40 23.9 0.05~0.10 1.33 KKSP105001GU R KKSP132001GU L 14 45 88 48 38.4 0.05~0.10 2.49 KKSP132001GU R KKSP157001GU L 20 53.5 105 55 60.1 0.05~0.10 3.90 KKSP157001GU R KKSP184001GU L 17 56.5 118 62 85.8 0.05~0.10 5.79 KKSP184001GU R [Caution on Secondary Operations] a Please read “Caution on Performing Secondary Operations” (Page 452) when performing modifications and/or secondary operations for safety concerns. Gear Kobo, the KHK's system for quick modificationInquiries areof KHK now stockbeing gears accepted is also on available. our website. 487 KKSP Module 2~5 Nissei Ground Spiral Bevel Gears E

Specifications Precision grade JIS B 1704 : 1978 grade 0 Gear teeth Gleason A B C D

Spur Pressure angle 20° Gears Helix angle 35° Material SCM415*

Heat treatment Overall carburizing F Tooth hardness 60~63HRC** * Module 3.5 and larger are made of SCM420. G Gears Helical ** Tooth Hardness for module 2 and 2.5 is between 80 to 83 HRA. A H

Direction Outside dia. Holding surface dia. Bore Hub dia. Length of bore Gear ratio Module No. of teeth Pitch dia. Face width Shape Catalog No. of spiral ABCH7 DE

Gears KKSP0481.5GF P 16 L 32 A 34 17.5 12 24 13 Internal KKSP0481.5GF G m2 24 R 48 9 B 48 30.4 15 30 17 KKSP0611.5GF P 18 L 40.5 A 42 22.4 15 30 17 KKSP0611.5GF G m2.25 27 R 60.75 12 B 61 36.3 20 40 20 KKSP0741.5GF P 18 L 49.5 A 52 28.8 20 40 20 KKSP0741.5GF G m2.75 27 R 74.25 15 B 74 44.5 25 50 25 KKSP0901.5GF P m3 20 L 60 18 B 63 34.1 22 44 24

Racks KKSP0901.5GF G 30 R 90 B 90 54.7 27 56 29 KKSP1051.5GF P 20 L 70 B 74 37.8 25 50 25 KKSP1051.5GF G 1.5 m3.5 30 R 105 21 C 105 53 30 63 32 KKSP1241.5GF P 22 L 82.5 B 87 46.6 27 56 29 KKSP1241.5GF G m3.75 33 R 123.75 24 C 124 64 33 69 35 KKSP1411.5GF P 22 L 93.5 B 99 52.9 30 63 32 KKSP1411.5GF G m4.25 33 R 140.25 28 C 141 68 36 73 41 KKSP1631.5GF P 24 L 108 B 113 64.6 33 69 35

& Pinions m4.5 32 CP Racks KKSP1631.5GF G 36 R 162 C 163 76 40 82 47 KKSP1811.5GF P 24 L 120 B 126 71.8 36 73 41 KKSP1811.5GF G m5 36 R 180 35 C 181 86 45 90 48 [Caution on Product Characteristics] a The allowable torque is calculated by converting the output torque (600 rpm) on page 485 to kgf/m, according to assumed usage conditions. b These gears produce axial thrust forces. See page 452 for more details. Miter Gears

KKSP Module 2~5 Nissei Ground Spiral Bevel Gears Bevel Gears E Specifications

Precision grade JIS B 1704 : 1978 grade 0 Gear teeth Gleason Pressure angle 20° A B D C Helix angle

Gears 35° Screw Material SCM415* Heat treatment Carburizing (bore & hubs are masked) Tooth hardness 60~63HRC** F * Module 3.5 and larger are made of SCM420. ** Tooth Hardness for module 2 and 2.5 is between 80 to 83 HRA. G

Worm A' H Gear Pair

Direction Outside dia. Holding surface dia. Bore Hub dia. Length of bore Gear ratio Module No. of teeth Pitch dia. Face width Shape Catalog No. of spiral ABCH7 DE

Bevel KKSP0481.5GU P 16 L 32 A' 34 17.5 10 24 13 KKSP0481.5GU G m2 24 R 48 9 B 48 30 12 30 17 Gearboxes KKSP0611.5GU P 18 L 40.5 A' 42 22 12 30 17 KKSP0611.5GU G m2.25 27 R 60.75 12 B 61 36 14 40 20 KKSP0741.5GU P 18 L 49.5 A' 52 27 14 40 20 KKSP0741.5GU G m2.75 27 R 74.25 15 B 74 44.5 20 50 25 KKSP0901.5GU P m3 20 L 60 18 B 63 34 16 44 24

Other KKSP0901.5GU G 30 R 90 B 90 54.5 20 56 29

Products KKSP1051.5GU P 20 L 70 B 74 38 20 50 25 KKSP1051.5GU G 1.5 m3.5 30 R 105 21 C 105 53 22 63 32 KKSP1241.5GU P 22 L 82.5 B 87 46.5 20 56 29 KKSP1241.5GU G m3.75 33 R 123.75 24 C 124 64 26 69 35 KKSP1411.5GU P 22 L 93.5 B 99 53 22 63 32 KKSP1411.5GU G m4.25 33 R 140.25 28 C 141 68 30 73 41 KKSP1631.5GU P 24 L 108 B 113 64.5 26 69 35 KKSP1631.5GU G m4.5 36 R 162 32 C 163 76 32 82 47 KKSP1811.5GU P 24 L 120 B 126 71.5 30 73 41 KKSP1811.5GU G m5 36 R 180 35 C 181 86 38 90 48 [Caution on Product Characteristics] a The allowable torque is calculated by converting the output torque (600 rpm) on page 485 to kgf/m, according to assumed usage conditions. b 488 These gears produce axial thrust forces. See page 452 for more details. KKSP

Ground Spiral Bevel Gears E E D C B A Spur C A D B Gears

F F G G Gears B C Helical H H

Hub width Total length Mounting distance Allowable gear Backlash Weight Keyway Catalog No. FGH torque (kgf·m) (mm) (kg)

4.3 14.5 31 4 x 1.8 0.05 KKSP0481.5GF P Gears 7 19 30 5 x 2.3 2.02 0 ~0.05 0.13 KKSP0481.5GF G Internal 5.1 19 39 5 x 2.3 0.09 KKSP0611.5GF P 10 23.5 37 6 x 2.8 4.12 0.05~0.10 0.25 KKSP0611.5GF G 5.7 22 46 6 x 2.8 0.17 KKSP0741.5GF P 12 29 45 7 x 3 7.15 0.05~0.10 0.45 KKSP0741.5GF G 8 26.5 56 6 x 2.8 11.9 0.05~0.10 0.29 KKSP0901.5GF P

13 33 53 8 x 3.3 0.79 KKSP0901.5GF G Racks 7 28.5 63 7 x 3 0.43 KKSP1051.5GF P 13 34 57 8 x 3.3 17.8 0.05~0.10 1.09 KKSP1051.5GF G 7 33 74 8 x 3.3 0.76 KKSP1241.5GF P 14 36.5 64 10 x 3.3 26.0 0.05~0.10 1.59 KKSP1241.5GF G 7 36 82 8 x 3.3 1.07 KKSP1411.5GF P 17 43.5 74 10 x 3.3 39.2 0.05~0.10 2.35 KKSP1411.5GF G 7 38.5 92 10 x 3.3 1.50 KKSP1631.5GF P

56.5 0.05~0.10 & Pinions 19 49.5 85 12 x 3.3 3.70 KKSP1631.5GF G CP Racks 10 45.5 105 10 x 3.3 2.12 KKSP1811.5GF P 19 50.5 90 14 x 3.8 72.4 0.05~0.10 4.65 KKSP1811.5GF G [Caution on Secondary Operations] a No secondary operations can be performed on these precision finished gears due to the applied carburizing process. Miter Gears KKSP

Ground Spiral Bevel Gears Bevel E E Gears A C B D A D C B Gears Screw

F F G B G C Worm

H H Gear Pair

Hub width Total length Mounting distance Allowable gear Backlash Weight Machinable Catalog No. FGH max. bore torque (kgf·m) (mm) (kg)

4.5 14.5 31 10 0.05 KKSP0481.5GU P Bevel 7 19 30 20 2.02 0 ~0.05 0.14 KKSP0481.5GU G 5.5 19 39 16 0.10 KKSP0611.5GU P Gearboxes 10 23.5 37 27 4.12 0.05~0.10 0.28 KKSP0611.5GU G 5.6 22 46 20 0.20 KKSP0741.5GU P 12 29 45 35 7.15 0.05~0.10 0.49 KKSP0741.5GU G 8 26.5 56 25 11.9 0.05~0.10 0.34 KKSP0901.5GU P

13 33 53 42 0.84 KKSP0901.5GU G Other

7 28.5 63 28 0.47 KKSP1051.5GU P Products 13 34 57 42 17.8 0.05~0.10 1.18 KKSP1051.5GU G 7 33 74 36 0.80 KKSP1241.5GU P 14 36.5 64 48 26.0 0.05~0.10 1.71 KKSP1241.5GU G 7 36 82 42 1.15 KKSP1411.5GU P 17 43.5 74 50 39.2 0.05~0.10 2.46 KKSP1411.5GU G 7 38.5 92 48 1.64 KKSP1631.5GU P 19 49.5 85 55 56.5 0.05~0.10 3.84 KKSP1631.5GU G 10 45.5 105 55 2.21 KKSP1811.5GU P 19 50.5 90 60 72.4 0.05~0.10 4.85 KKSP1811.5GU G [Caution on Secondary Operations] a Please read “Caution on Performing Secondary Operations” (Page 452) when performing modifications and/or secondary operations for safety concerns. Gear Kobo, the KHK's system for quick modification of KHK stock gears is also available. Inquiries are now being accepted on our website. 489 KKSP Module 1.5~4.5 Nissei Ground Spiral Bevel Gears E 5 Specifications 2-M4（120°） Precision grade JIS B 1704 : 1978 grade 0 Gear teeth Gleason

Spur Pressure angle 20° Gears A C B Helix angle 35° D Material SCM415* Heat treatment Overall carburizing Tooth hardness 60~63HRC** F * Module 3.5 and larger are made of SCM420. G Gears

Helical ** Tooth Hardness for module 2 and 2.5 is between 80 to 83 HRA. AT H

Direction Outside dia. Holding surface dia. Bore Hub dia. Length of bore Gear ratio Module No. of teeth Pitch dia. Face width Shape Catalog No. of spiral ABCH7 DE KKSP039002GC P 13 L 19.5 AT 21 10.2 8 16 14 Gears m1.5 7 Internal KKSP039002GF G 26 R 39 B 38.5 24.1 12 24 13 KKSP056002GF P 14 L 28 B 30 15.3 10 20 12 KKSP056002GF G m2 28 R 56 10 B 56 35.6 16 30 18 KKSP075002GF P 15 L 37.5 B 40 16.9 14 30 17 KKSP075002GF G m2.5 30 R 75 14 C 75 36 22 44 24 KKSP096002GF P 2 m3 16 L 48 18 B 53 23.5 17 36 19 Racks KKSP096002GF G 32 R 96 C 96 46 27 56 29 KKSP119002GF P 17 L 59.5 A 65 31.1 22 44 25 KKSP119002GF G m3.5 34 R 119 22 C 119 54 33 63 34 KKSP145002GF P 18 L 72 A 78 31.3 26 54 28 KKSP145002GF G m4 36 R 144 27 C 145 60 36 73 39 KKSP172002GF P 19 L 85.5 A 93 44.4 33 69 34 KKSP172002GF G m4.5 38 R 171 32 C 172 70 42 79 46 & Pinions CP Racks [Caution on Product Characteristics] a The allowable torque is calculated by converting the output torque (600 rpm) on page 485 to kgf/ m, according to assumed usage conditions. b These gears produce axial thrust forces. See page 452 for more details. Miter Gears

KKSP Module 1.5~4.5 Nissei Ground Spiral Bevel Gears E Bevel Gears Specifications

Precision grade JIS B 1704 : 1978 grade 0 Gear teeth Gleason A B D Pressure angle 20° C Helix angle

Gears 35° Screw Material SCM415* Heat treatment Carburizing (bore & hubs are masked) F Tooth hardness 60~63HRC** * Module 3.5 and larger are made of SCM420. G ** Tooth Hardness for module 2 and 2.5 is between 80 to 83 HRA. A H Worm Gear Pair Direction Outside dia. Holding surface dia. Bore Hub dia. Length of bore Gear ratio Module No. of teeth Pitch dia. Face width Shape Catalog No. of spiral ABCH7 DE KKSP039002GU P 13 L 19.5 A 21 10.2 8 16 14 KKSP039002GU G m1.5 26 R 39 7 B 38.5 24 10 24 13 Bevel KKSP056002GU P m2 14 L 28 10 B 30 15.3 8 20 12

Gearboxes KKSP056002GU G 28 R 56 B 56 35.5 12 30 18 KKSP075002GU P 15 L 37.5 A' 40 20 12 30 17 KKSP075002GU G m2.5 30 R 75 14 C 75 36 16 44 24 KKSP096002GU P 16 L 48 B 53 23.5 12 36 19 KKSP096002GU G 2 m3 32 R 96 18 C 96 46 20 56 29

Other KKSP119002GU P m3.5 17 L 59.5 22 A 65 34 16 44 25

Products KKSP119002GU G 34 R 119 C 119 54 26 63 34 KKSP145002GU P 18 L 72 A 78 38 20 54 28 KKSP145002GU G m4 36 R 144 27 C 145 60 30 73 39 KKSP172002GU P 19 L 85.5 A 93 48 26 69 34 KKSP172002GU G m4.5 38 R 171 32 C 172 70 36 79 46

[Caution on Product Characteristics] a The allowable torque is calculated by converting the output torque (600 rpm) on page 485 to kgf/m, according to assumed usage conditions. b These gears produce axial thrust forces. See page 452 for more details.

490 KKSP

Ground Spiral Bevel Gears E E E A B C D D C B A Spur C A D B Gears

F F F G G Gears

G Helical H A B C H H

Hub width Total length Mounting distance Allowable gear Backlash Weight Keyway Catalog No. FGH torque (kgf·m) (mm) (kg) 7.6 14.5 28 - 0.02 KKSP039002GC P 0.89 0 ~0.05 Gears 7 15 22 4 x 1.8 0.06 KKSP039002GF G Internal 2.5 13 32 3 x 1.4 0.03 KKSP056002GF P 8 20.5 30 5 x 2.3 2.65 0 ~0.05 0.18 KKSP056002GF G 4.6 19.5 44 5 x 2.3 0.09 KKSP075002GF P 11 25.5 38 6 x 2.8 6.43 0.05~0.10 0.41 KKSP075002GF G 2.5 21.5 53 5 x 2.3 12.5 0.05~0.10 0.18 KKSP096002GF P 12 31 47 8 x 3.3 0.85 KKSP096002GF G Racks 3.6 27.5 67 6 x 2.8 0.33 KKSP119002GF P 15 35.5 55 10 x 3.3 22.2 0.05~0.10 1.37 KKSP119002GF G 3.5 33 80 8 x 3.3 0.57 KKSP145002GF P 16 40.5 64 10 x 3.3 36.3 0.05~0.10 2.34 KKSP145002GF G 4.4 38 94 10 x 3.3 0.91 KKSP172002GF P 20 47 75 12 x 3.3 59.9 0.05~0.10 3.60 KKSP172002GF G & Pinions CP Racks [Caution on Secondary Operations] a No secondary operations can be performed on these precision finished gears due to the applied carburizing process. Miter Gears KKSP

Ground Spiral Bevel Gears E E E Bevel Gears A B D C A C B D A D C B Gears Screw

F F F G G G H A' B C H H Worm Gear Pair Hub width Total length Mounting distance Allowable gear Backlash Weight Machinable Catalog No. FGH max. bore torque (kgf·m) (mm) (kg) 7.6 14.5 28 8 0.02 KKSP039002GU P 7 15 22 20 0.89 0 ~0.05 0.07 KKSP039002GU G Bevel 2.5 13 32 10 2.65 0 ~0.05 0.04 KKSP056002GU P

8 20.5 30 20 0.19 KKSP056002GU G Gearboxes 4.5 19.5 44 14 0.10 KKSP075002GU P 11 25.5 38 25 6.43 0.05~0.10 0.44 KKSP075002GU G 2.5 21.5 53 19 0.20 KKSP096002GU P 12 31 47 32 12.5 0.05~0.10 0.91 KKSP096002GU G

3.6 27.5 67 25 22.2 0.05~0.10 0.36 KKSP119002GU P Other

15 35.5 55 40 1.45 KKSP119002GU G Products 3.5 33 80 30 0.65 KKSP145002GU P 16 40.5 64 42 36.3 0.05~0.10 2.44 KKSP145002GU G 4.4 38 94 38 0.97 KKSP172002GU P 20 47 75 50 59.9 0.05~0.10 3.80 KKSP172002GU G

Inquiries are now being accepted on our website. 491 KKSP Nissei Ground Spiral Bevel Gears

 Adjusting Tooth Contact

< Centering tooth contact > (1) When there is an angular error of the shafts (1) When assembled correctly, the contact will occur in the middle of the tooth flank. (2) The contact area along the tooth face should be in the center of the tooth, but somewhat closer to the toe is ideal.

When the gears are assembled in to the gearbox and the Error backlash is adjusted, adjust the gearbox to obtain the tooth contact as shown below. Inaccurate assembly will lead to ir- Toe contact regular noise and uneven wear,

Heel Heel contact

Error

Toe

(2) When the pinion shaft is offset (3) When the mounting distance of the pinion is incorrect

Heel contact Low contact

High contact Heel contact Toe contact

Error Error

High contact

Low contact

High contact Toe contact Heel contact Low contact

Toe contact

Error

Low contact High contact

492