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Arrow Gear Stock Gear Catalog 2008

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Arrow Gear Stock Gear Catalog 2008 THE COMPANY SPECIALISTS IN HIGH PRECISION GEARS Since its inception in 1947, Arrow Gear Company has continued to build a solid reputation for quality, service and reliability. From the very beginning, Arrow has provided high precision spur, helical and bevel gears that meet the rapidly changing and demanding requirements of the gear industry. Arrow’s primary goal is to insure customer satisfaction by improving the manufacturing process, eliminating waste, and delivering a quality product on time at a competitive price. To achieve these objectives, Arrow has embraced the continuous improvement philosophy while implementing the most advanced technology available for the machining, heat treatment and inspection of our products. We are an approved supplier to major companies throughout the world and have consistently received vendor awards for both quality and on-time delivery. Arrow Gear takes great pride in its history of steady growth and its record for maintaining long-lasting customer relations. 2301 Curtiss Street Downers Grove, Illinois 60515, USA (630) 969-7640 FAX: (630) 969-0253 www.ArrowGear.com TABLE OF CONTENTS STOCK SPIRAL BEVEL GEARS TYPES OF GEARS AND SIZES . .3 RATING DATA AND SPECIFICATIONS . .4 We stock 51 different sets of lapped spiral bevel gears in ratios of 1 to 1, 2 to 1, 3 to 1, 3 to 2 and 4 to 3 and 8 STANDARD STOCK GEAR different sets of ground tooth spiral bevel gears in ratios SPECIFICATIONS . .5-9 TYPES OF GEARS of 1 to 1 and 2 to 1. Should you be unable to satisfy your gear requirements from the selection of stock gears listed ARROW-STAN® in our catalog, please contact us for assistance. We can NON-STOCK GEARS . .10 modify most of our stock gears to your specifications. STOCK GROUND TOOTH GEARS . .12 Custom Gears In addition to the stock gears listed in this catalog DESIGN CONSIDERATIONS we manufacture spiral bevel, hypoid, Zerol® bevel, Bearing Loads . .14 Coniflex® bevel, helical and spur gears, as well as Installation . .15 Curvic® couplings to customers’ prints and specifications. Mountings . .16 Please refer to the following chart for the complete range Bearing Pattern . .18 of sizes and capabilities. Application . .19 Spiral Bevel Zerol® Bevel Coniflex® Bevel Spur RANGE SIZE AND CAPABILITIES Maximum Type of Gear Pitch Diametral Face Unground Ground Diameter Pitch Width Tooth Tooth Spiral Bevel 30" 1.5 - 48 5.0 AGMA 9* AGMA 13 Zerol® Bevel 22" 1.5 - 48 4.0 AGMA 9* AGMA 13 Helical Coniflex® Bevel 28" 2.5 - 48 6.0 AGMA 9* –– Helical 36" 3.0 - 48 13.0 AGMA 9 AGMA 13 Internal Spur 32" 3.6 - 48 8.0 AGMA 9 AGMA 13 Internal Spline 32" 3.6 - 48 8.0 AGMA 9 AGMA 13 Spur 36" 3.0 - 48 13.0 AGMA 9 AGMA 13 ₈₀ Spline 36" ⁴⁄₈ - ⁄₁₆₀ 13.0 AGMA 9 AGMA 13 *Some Configurations to AGMA Quality Number 10 (lapped). Curvic® Coupling 3 OVERLOAD FACTORS POWER CHARACTER OF LOAD SOURCE ON DRIVEN MACHINE Standard and ground tooth Medium Heavy stock spiral bevel gears ... Uniform Shock Shock RATING DATA RATING Uniform 1.00 1.25 1.75 RATING DATA AND Light Shock 1.25 1.50 2.00 SPECIFICATIONS Medium Shock 1.50 1.75 2.25 Arrow Stock Gear Selection Arrow stock gears are lapped to AGMA Quality 1) Calculate the pinion working torque (Twp). Number 9 or ground to AGMA Quality Number 11. Twp = 63025 x HP Each pair of gears is made of alloy steel with RPMp carburized and hardened teeth. 20° pressure angle 2) Estimate the rated pinion torque (Trp). and 35° spiral angle are standard. All pinions are Trp = 2 x Twp left hand spiral. Mounting distance, backlash, 3) Find the rated pinion torque in the catalog that mating teeth and set number are etched is approximately equal to the estimated torque. on each pair. See page 16. 4) Calculate the pitch line velocity (PLV). PLV = 0.262 x pinion pitch diameter x RPMp Hub type gears can be rebored to the maximum 5) Calculate the dynamic factor Kv. diameter specified in the tables. It is preferred that all remachining of bores be performed by Kv = 78 Arrow Gear Company. 78 + PLV 6) Calculate the allowable pinion torque (Tap). Calculations Tap = Trp x Kv Tw = HP x 63025 HP = Horsepower 7) Calculate the service factor. RPM Tw = Working torque Tap (in. lb.) SF = ––– RPM = Revolutions/minute Twp Tr = Tw SF Ta = Allowable torque Example KV (in. lb.) Customer requires a bevel 3:1 reduction Tr = Catalog torque Pinion speed = 1800 (in. lb.) HP = 38 (SF = 1) Then: Twp = 63025 x 38 = 1330 in. lb. 1800 Kv = Velocity Factor First estimate Lapped = 78 (AGMA Q9) Trp = 2 x 1330 in. lb. = 2660 in. lb. 78 + PLV From the 3:1 ratios on page 7 = 1 (Ground AGMA Q11) (6P45L15/6P15R45): T = 2381 in. lb. (catalog value) PLV = Pitch line velocity rp = 0.262 x RPM x Pitch PLV = 0.262 x 2.5 x 1800 = 1179 Diameter Kv = 78 = 0.833 SF = Service Factor 78 + 1179 T = 2381 in. lb. x 0.833 = 1983 in. lb. Service factors have been determined by many ap industries for specific applications from field SF = 1983 = 1.49 data and should be used when available. 1330 In the absence of a service factor, select A 1.49 SF indicates that the stock gear an appropriate overload factor. set has a capacity of 1.49 times that required. Gear sizes in this manual must be selected from the calculated allowable torque. For applications involving unusual conditions, our Engineering Service is available. 4 Figure 1 Figure 2 Figure 3 Figure 4 STOCK 1 TO RATIO Part No. 18P18L18 18P18R18 12P18L18 12P18R18 10P20L20 10P20R20 8P20L20 8P20R20 7P21L21 7P21R21 6P21L21 6P21R21 6P24L24 6P24R24 5P25L25 5P25R25 45P27L27 45P27R27 4P28L28 4P28R28 4P32L32 4P32R32 35P35L35 35P35R35 3P36L36 3P36R36 257P36L36 257P36R36 225P36L36 225P36R36 Figure 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2 2 2 2 2 3333334444 Gear Outside Dia. 1.061 1.571 2.086 2.590 3.100 3.665 4.100 5.172 6.201 7.238 8.202 10.262 12.304 14.372 16.430 Pitch Dia. 1.000 1.500 2.000 2.500 3.000 3.500 4.000 5.000 6.000 7.000 8.000 10.000 12.000 14.000 16.000 Pinion Outside Dia. 1.061 1.571 2.086 2.590 3.100 3.665 4.100 5.172 6.201 7.238 8.202 10.262 12.304 14.372 16.430 Pitch Dia. 1.000 1.500 2.000 2.500 3.000 3.500 4.000 5.000 6.000 7.000 8.000 10.000 12.000 14.000 16.000 Combination 18 18 18 18 20 20 20 20 21 21 21 21 24 24 25 25 27 27 28 28 32 32 35 35 36 36 36 36 36 36 Diametral Pitch 18 12 10 8 7 6 6 5 4¹⁄₂ 4 4 3¹⁄₂ 3 2.57 2.25 Face Width ³⁄₁₆ ⁵₁₆ ¹₂ ⁹₁₆ ¹¹₁₆ ¹³₁₆ 11³₁₆ 1⁵₁₆ 1¹⁄₂ 1¹⁄₂ 1⁷₈ 22³₄ 3 A Mount Dist. ⁷₈ 1⁵₁₆ 1⁵₈ 1¹⁵₁₆ 2¹₄ 2⁹₁₆ 2¹³₁₆ 3⁷₁₆ 4¹₈ 4⁵₈ 3³₄ 4¹¹⁄₁₆ 5⁹⁄₁₆ 7¹⁄₂ 8¹⁄₂ B Bore Length ¹⁵₃₂ ¹¹₁₆ ⁷₈ 11¹₈ 1¹₄ 1³₈ 1⁵₈ 1⁷₈ 2 +.0005 C Bore Dia. -.0000 ³₈ ⁵₈ ³₄ ¹⁵₁₆ 1¹₁₆ 1³₁₆ 1⁵₁₆ 1⁷₁₆ 1¹¹⁄₁₆ 1¹⁵⁄₁₆ D Hub Dia. ³₄ 1¹₄ 1¹₂ 1⁷₈ 2¹₈ 2¹⁄₂ 2³₄ 3¹₄ 3⁵₈ 4 E Hub Length ¹₄ ⁷₁₆ ³₈ ⁷₁₆ ¹₂ ⁹₁₆ ⁹₁₆ ⁹₁₆ ³₄ ¹¹₁₆ F Apex to Back 4³₈ 5⁷⁄₁₆ 6¹⁄₂ 89¹₄ +.001 G Bore Dia. -.000 3³₄ 56¹⁄₂ 8⁷₈ 10¹⁄₂ H C’bore Dia. 5¹⁄₂ 7¹₈ 8⁵₈ 11¹₄ 13 J Bolt Circle 4⁵₈ 67¹⁄₂ 10 11³₄ K Web Thick. ⁵₈ ³₄ ³₄ 22¹₈ L C’bore Depth ⁵₈ ³₄ ¹⁵₁₆ ¹⁄₂ ³⁄₄ M Bore Length ⁵₁₆ ⁵₁₆ ³₄ 1 ¹⁄₂ Size ¹³₃₂ ¹⁷₃₂ ¹⁷₃₂ ¹⁄₂-20 ¹⁄₂-20 Holes No. 12 12 12 10 12 Keyway ¹₈x¹₁₆ ³₁₆x¹₁₆ ³₁₆ x¹₁₆ ¹₄x³₃₂ ¹₄x³₃₂ ¹₄x³₃₂ ³₈x¹₈ ³₈x¹₈ ³₈x¹₈ ¹₂x³₁₆ **Max. Bore **⁷₈ 1³₁₆ 1⁷₁₆ 1¹¹₁₆ 1⁷₈ 2¹₂ 2³₄ 2⁷⁄₈ *** * * Wt. per pair, lbs. .12 .40 .81 1.25 2.25 3.75 5.37 10.516.524.517.030.046.079.5 108.0 Torque (lb. in.) 37 138 405 712 1251 1936 2991 5218 7765 11481 14209 24433 38404 69158 95307 Note: All dimensions are in inches. *Cannot be reworked. **Keyway Unchanged 5 Figure 5 Figure 7 Figure 9 Figure 6 Figure 8 STOCK 2 TO 1 RATIO Part No. 10P32L16 10P16R32 9P34L17 9P17R34 8P36L18 8P18R36 7P38L19 7P19R38 6P40L20 6P20R40 5P40L20 5P20R40 4P40L20 4P20R40 35P42L21 35P21R42 320P46L23 320P23R46 Figure 5 6 5 6 5 7 5 7 6 7 6 7 6 8 6 8 6 9 Gear Outside Dia. 3.200 3.783 4.518 5.457 6.699 8.053 9.985 12.069 14.413 Pitch Dia. 3.200 3.778 4.500 5.429 6.667 8.000 10.000 12.000 14.362 Pinion Outside Dia. 1.764 2.087 2.457 2.965 3.620 4.404 5.436 6.517 7.760 Pitch Dia. 1.600 1.889 2.250 2.714 3.333 4.000 5.000 6.000 7.181 Combination 16 32 17 34 18 36 19 38 20 40 20 40 20 40 21 42 23 46 Diametral Pitch 10 9 8 7 6 5 4 3¹⁄₂ 3¹³₆₄ Face Width ⁹⁄₁₆ ⁵₈ ¹³⁄₁₆ 11³₁₆ 1⁷₁₆ 1³₄ 22³₈ A Mount Dist. 1⁷₈ 1¹¹₁₆ 2¹₄ 1¹⁵₁₆ 2⁹₁₆ 2¹₁₆ 32⁷₁₆ 3¹¹₁₆ 2¹⁵₁₆ 4⁷₁₆ 3¹₂ 5¹₂ 2⁹₁₆ 6⁹₁₆ 3¹₈ 7⁷₈ 4⁷₁₆ B Bore Length ³₄ 1 ⁷₈ 1¹₈ 11³₈ 1¹₈ 1⁵₈ 1³₈ 1⁷₈ 1⁵⁄₈ 2¹₄ 22¹₄ 2¹⁵₁₆ +.0005 C Bore Dia. -.0000 ⁵₈ ¹⁵₁₆ ³₄ 1¹₁₆ ⁷₈ 1⁵₁₆ 1¹₁₆ 1⁷₁₆ 1⁵⁄₁₆ 1¹¹⁄₁₆ 1⁹₁₆ 2¹⁄₁₆ 1¹³₁₆ 2¹⁄₁₆ 2⁵₈ D Hub Dia. 1¹₄ 1⁷₈ 1¹₂ 2¹₈ 1³₄ 2¹⁄₂ 2¹₈ 2⁷₈ 2³₄ 3¹₈ 2⁷₈ 3⁷₈ 3³⁄₄ 3⁷₈ 4¹₂ E Hub Length ³₁₆ ⁹₁₆ ¹₄ ⁹₁₆ ³₁₆ ⁹₁₆ ¹₈ ⁵⁄₈ ¹₄ ¹³₁₆ ¹₄ ¹⁵₁₆ ⁵₁₆ ⁵⁄₁₆ ¹₄ F Apex to Back 3³₁₆ 3⁷₈ +.001 G Bore Dia.
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