Sprocket Nomenclature
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Nomenclature Sprocket Sprocket SPROCKET NOMENCLATURE SPROCKETNomenclature NOMENCLATUREC/L to C/L of Chain Row (TransverseC/L to C/L Pitch) of Chain Row (TransverseC/L to C/L Pitch) of Chain Row (Transverse Pitch) Bottom Dia. Bottom(Even # Hub ofDia. Teeth) O.D. Bore Bottom(Even # Pitch Hub Dia.of Teeth) O.D. Bore (Even # Dia. Hub of Teeth) Pitch Dia. OutsideO.D. Bore Caliper Dia. Pitch Dia. Dia. Outside Caliper Dia. Dia. Dia. Chain Row Outside Caliper Dia. Thickness Chain Row Face Width Thickness Chain Row Length ThruFace Bore Width Thickness (L.T.B.) LengthFace Thru WidthBore (L.T.B.) Length Thru Bore (L.T.B.) # of Strands Bore Size # of Strands D 160 B 16 H 2 1/4 Bore Size Blank Single Special Instructions # of StrandsD SingleDouble D 160 B 16 H 2 1/4 Bore Size Blank SpecialH Hardened Instructions Teeth DESingleDoubleTriple D 160 B 16 H 2 1/4 Blank SpecialSS Stainless Instructions Steel DEFDoubleTripleQuadruple H Hardened Teeth DS EFTripleQuadrupleDouble Single SSH HardenedStainless # of TeethSteel Teeth DS F QuadrupleDouble Single SS Stainless # ofSteel Teeth ChainDS Pitch (measured in eighths) Sprocket Type Double Single # of Teeth Chain25 = 2/8 Pitch = 1/4" (measured100 = 10/8in eighths) = 1 1/4" A Plate Only JA, SH,... QDSprocket Type Chain2535 = 2/83/8 Pitch = 1/4"3/8" (measured100120 = in 10/812/8 eighths) = 1 1/4"1/2" AB PlateHub One Only Side JA,BTB SH,... Sprocket QDTaper Bore Type 253540 = = 2/8 3/84/8 = = 1/4" 3/8"1/2" 100120140 = = 10/8 12/814/8 = = 1 1 1/4" 1/2"3/4" ABC PlateHub OnlyOneBoth SideSides JA,BTBH, P,SH,... Q,... QD TaperMS Bore D 354041 = = 3/8 4/8 = = 3/8" 1/2" 120140160 = = 12/8 14/816/8 = = 1 12" 1/2" 3/4" BC HubHubDetachable One Both Side Sides Hubs BTBH,BS P, Q,... Taper MSBored-to-Size Bore 404150 = = 4/8 4/85/8 = = 1/2" 1/2"5/8" 140160180 = = 14/8 16/818/8 = = 1 2"2 3/4" 1/4" CD HubDetachable Both Sides Hubs H,BS P, Q,... MSBored-to-Size 415060 = = 4/8 5/86/8 = = 1/2" 5/8"3/4" 160180200 = = 16/8 18/820/8 = = 2" 2 1/4"1/2" D Detachable Hubs BS Bored-to-Size 506080 = = 5/8 6/88/8 = = 5/8" 3/4"1" 180200240 = = 18/8 20/824/8 = = 2 23" 1/4" 1/2" 6080 = = 6/8 8/8 = = 3/4" 1" 200240 = = 20/8 24/8 = = 2 3" 1/2" 80 = 8/8 = 1" 240 = 24/8 = 3" Types of Sprockets Types of Sprockets Types of Sprockets Single Single Single Single Single Type A Type B Hub Type C Hub Type D Type BS Double Double Double Taper Bushed Single Single Single Single Single No Hub One Side Both Sides Detachable Hub Bored-to-Size Single QD Type B Type C Single Type B Type A Type B Hub Type C Hub Type D Type BS Double Double Double Taper Bushed Ex:Single 25A40 Ex:Single 35B20 Ex:Single 60C17 Ex:Single 100D30 Ex: 50BS16 1 Ex: 35SH40 Ex: D35B19H Ex: D60C72 Ex: DS40A19 Ex:Single 50BTB16 No Hub One Side Both Sides Detachable Hub Bored-to-Size Single QD Type B Type C Single Type B Type A Type B Hub Type C Hub Type D Type BS Double Double Double Taper Bushed Ex: 25A40 Ex: 35B20 Ex: 60C17 Ex: 100D30 Ex: 50BS16 1 Ex: 35SH40 Ex: D35B19H Ex: D60C72 Ex: DS40A19 Ex: 50BTB16 No Hub One Side Both Sides Detachable Hub Bored-to-Size Single QD Type B Type C Single Type B Ex: 25A40 Ex: 35B20 Ex: 60C17 Ex: 100D30 Ex: 50BS16 1 Ex: 35SH40 Ex: D35B19H Ex: D60C72 Ex: DS40A19 Ex: 50BTB16 Double Taper Bushed Double QD Triple Type B Triple Type C Triple QD Single MST® Double MST® Triple MST® Double Ex: D50BTB21H Ex: D80E52 Ex: E60C12H Ex: E60C72 Ex: E60E68 Ex: 50P24H Ex: D80R60 Ex: E60Q21H Taper Bushed Double QD Triple Type B Triple Type C Triple QD Single MST® Double MST® Triple MST® Double Ex: D50BTB21H Ex: D80E52 Ex: E60C12H Ex: E60C72 Ex: E60E68 Ex: 50P24H Ex: D80R60 Ex: E60Q21H Taper Bushed Double QD Triple Type B Triple Type C Triple QD Single MST® Double MST® Triple MST® Ex: D50BTB21H Ex: D80E52 Ex: E60C12Hwww.martinsprocket.comEx: E60C72 -Ex: 817 E60E68 258 3000Ex: 50P24H Ex: D80R60 Ex: E60Q21H Copyright® 2016 Martinwww.martinsprocket.com Sprocket & Gear, Inc. • All Rights Reserved • CARD-SPK 0229 Copyright® 2015 Martinwww.martinsprocket.com Sprocket & Gear, Inc. • All Rights Reserved #566 CARD-SPK 1221 Copyright® 2015 Martinwww.martinsprocket.com Sprocket & Gear, Inc. • All Rights Reserved #566 CARD-SPK 1221 Copyright® 2015 Martin Sprocket & Gear, Inc. • All Rights Reserved #566 CARD-SPK 1221 Made-to-Order Sprockets Multi-Strand Oil Field Triple 160 Sprocket with Clutch Jaws Shaft Sprocket Quadruple 160 Triple 200 Double 200 Sprocket Sprocket Sprocket and Pinion Large Triple Strand Sprocket with Standard RC Sprocket Sprocket with Mounting Flange Mud Relief with Spline Bore Special Dryer Sprocket Special Plastic Sprocket Block Chain Martin manufactures numerous Made-To-Order (MTO) sprockets. If you do not see the sprocket you need in this section, call us. Chances are if chain runs on it, we have made the sprocket before. Special materials, special bores, duplex, triplex, double-single-doubles, etc. are all familiar to Martin. E-3 Bolt-On Shear Pin Sprockets Shear Pin sprockets provide simple, dependable protection against expensive machinery damage caused by overloads or jamming. Torque is transmitted by a single pin, necked to shear when the safe load is exceeded. When an overload occurs, the pin shears, disconnecting the drive immediately. The Bolt-on Shear Pin Adapter converts any plate sprocket into a stock Shear Pin sprocket allowing immediate delivery of stock Shear Pin sprockets. Selection guide on page E-6 gives complete procedure to select the proper Shear Pin assembly. Notes on Pricing: Stock Shear Pin Assemblies Shear Pin Hub List Price includes any finished bore within Shear Pin Shear Pin the stated range, standard keyway, setscrew, and hardened Shear Pin Hub Hub Adapter Assembly Bore Catalog Catalog steel shear pin bushing. Number Range Number Number SP-17 1" & UNDER SPH-17 SPA-17 Shear Pin Adapter List Price includes the Shear Pin 1 1 SP-18 1 ⁄16 - 1 ⁄4 SPH-18 SPA-18 bushin and grease fitting. 5 1 SP-19 1 ⁄16 - 1 ⁄2 SPH-19 SPA-19 9 3 Complete Assembly List includes all components of SP-20 1 ⁄16 - 1 ⁄4 SPH-20 SPA-20 Price 13 SP-21 1 ⁄16 - 2 SPH-21 SPA-21 the Shear Pin assembly as described above. Total list price 1 1 SP-22 2 ⁄16 - 2 ⁄4 SPH-22 SPA-22 of any Shear Pin sprocket is the complete assembly list 5 1 SP-23 2 ⁄16 - 2 ⁄2 SPH-23 SPA-23 9 3 price plus the list price of the desired plate sprocket (from SP-24 2 ⁄16 - 2 ⁄4 SPH-24 SPA-24 13 SP-25 2 ⁄16 - 3 SPH-25 SPA-25 tables of stock sprocket list prices). 1 1 SP-26 3 ⁄16 - 3 ⁄2 SPH-26 SPA-26 9 Replacement should be priced as altered stock SP-27 3 ⁄16 - 4 SPH-27 SPA-27 Sprockets 1 1 SP-28 4 ⁄16 - 4 ⁄2 SPH-28 SPA-28 sprockets directly from List Price and Alteration Charge 9 SP-29 4 ⁄16 - 5 SPH-29 SPA-29 tables. 7 1 SP-30 4 ⁄8 - 5 ⁄2 SPH-30 SPA-30 9 SP-31 5 ⁄16 - 6 SPH-31 SPA-31 Shear Pin Components may be ordered separately and will be treated as stock items when conforming to standard specifications and descriptions above. Pricing Examples: Shear Pin Adapter and ocket for Existing 1. Stock Shear Pin Sprocket 2. Spr Hub To price a 35 tooth shear pin sprocket for 160 chain To price a “Bolt-on” shear pin adapter and sprocket to 7 replace the sprocket part of existing 50SP40 using (160SP35) using SP-26 shear pin assembly with 3 ⁄16" bore, standard keyway and setscrew: SP-19 hub: SPA-19 Adapter List Price.............. SP-26 Assembly List Price............. See See List 50A40 List Price ............................. List 160A35 List Price ........................... Price Price Sheet otal List .............................. Sheet Total List Price.............................. T Price Shear Pin Sprockets can also be furnished in other standard styles or made to customer’s specifications. Price on application. It is important that the torque requirement for the selected hub be checked in the torque rating table on page E-6 and the neck diameter of Shear Pin be specified. E-4 Bolt-On Shear Pin Sprockets SHEAR PIN HARDENED ADAPTER STEEL BUSHING STEEL SHEAR PIN PLATE HUB SPROCKET B N SAFETY COLLAR R E C DF JK L M 1 ⁄8" P H G Shear Pin Assembly Dimensions (Inches) Table I Shear Pin Diameters Length Thru Hub Adapt. Bolts Weights Lbs. (Approx.) Shear Shear Adapt. Shear Flange Flange Sprocket Pin Pin Pin Hub & Sprocket Pin Thick- Thick- Seat Number Bolt Shear Shear Assembly Radius Dia. Flange Hub Collar Seat Hub Adapt. Collar ness ness Width & Size Circle Pin Pin Number R B C D E F G H M J K L N P Hub Adapt. 13 1 1 3 1 5 7 3 3 9 9 7 3 SP-17 1 ⁄16 ⁄4 5 ⁄4 1 ⁄4 2 ⁄2 2 ⁄8 2 ⁄16 1 ⁄8 ⁄8 ⁄16 ⁄16 ⁄16 4 - ⁄8" 4 2.7 3.2 3 1 1 1 3 15 3 1 9 9 9 3 3 SP-18 2 ⁄16 ⁄4 6 2 ⁄4 3 ⁄4 3 ⁄8 2 ⁄16 1 ⁄4 ⁄2 ⁄16 ⁄16 ⁄16 4 - ⁄8" 4 ⁄4 4.6 4.7 9 5 3 3 1 9 1 5 11 11 11 1 1 SP-19 2 ⁄16 ⁄16 6 ⁄4 2 ⁄4 4 4 ⁄8 3 ⁄16 2 ⁄8 ⁄8 ⁄16 ⁄16 ⁄16 4 - ⁄2" 5 ⁄2 7.2 7.6 3 3 1 3 7 3 1 3 13 13 11 1 1 SP-20 3 ⁄8 7 ⁄4 3 ⁄4 4 ⁄4 4 ⁄8 4 ⁄16 2 ⁄2 ⁄4 ⁄16 ⁄16 ⁄16 4 - ⁄2" 6 ⁄4 11.0 11.9 5 7 3 3 1 3 13 7 7 15 15 15 5 SP-21 3 ⁄16 ⁄16 8 ⁄4 3 ⁄4 5 ⁄4 5 ⁄8 4 ⁄16 2 ⁄8 ⁄8 ⁄16 ⁄16 ⁄16 4 - ⁄8" 7 16.2 16.9 13 1 3 1 1 3 3 1 1 3 5 SP-22 3 ⁄16 ⁄2 9 ⁄4 4 ⁄4 6 ⁄4 6 ⁄8 5 ⁄16 3 1 1 ⁄16 1 ⁄16 1 ⁄16 4 - ⁄8" 8 23.3 24.5 1 1 1 5 11 1 1 1 3 5 1 SP-23 4 ⁄2 10 4 ⁄2 6 ⁄2 6 ⁄8 5 ⁄16 3 ⁄2 1 1 ⁄16 1 ⁄16 1 ⁄8 4 - ⁄8" 8 ⁄4 26.3 27.7 3 9 1 1 5 7 1 3 3 3 5 1 SP-24 4 ⁄8 ⁄16 11 ⁄2 5 7 7 ⁄8 6 ⁄16 3 ⁄8 1 ⁄8 1 ⁄16 1 ⁄16 1 ⁄8 4 - ⁄8" 9 ⁄4 40.4 38.6 7 5 1 1 1 15 1 1 5 5 3 5 1 SP-25 4 ⁄8 ⁄8 12 ⁄2 5 ⁄2 8 8 ⁄8 6 ⁄16 4 ⁄4 1 ⁄4 1 ⁄16 1 ⁄16 1 ⁄8 6 - ⁄8" 10 ⁄4 52.6 53.6 5 11 1 1 3 7 13 7 3 7 7 3 5 1 SP-26 5 ⁄16 ⁄16 13 ⁄2 6 ⁄4 8 ⁄4 8 ⁄8 7 ⁄16 4 ⁄8 1 ⁄8 1 ⁄16 1 ⁄16 1 ⁄8 6 - ⁄8" 11 ⁄4 66.7 66.8 1 3 1 1 11 1 1 9 1 3 5 3 SP-27 6 ⁄16 ⁄4 15 ⁄2 7 10 10 ⁄8 8 ⁄16 5 ⁄2 1 ⁄2 1 ⁄16 1 ⁄2 1 ⁄8 6 - ⁄8" 12 ⁄4 96.5 100.0 7 3 1 3 3 7 11 1 1 9 1 3 3 1 SP-28 6 ⁄16 ⁄4 16 ⁄4 7 ⁄4 10 ⁄4 10 ⁄8 9 ⁄16 6 ⁄2 1 ⁄2 1 ⁄16 1 ⁄2 1 ⁄8 6 - ⁄4" 13 ⁄2 125.0 115.0 1 7 1 1 1 11 3 13 1 3 3 SP-29 7 ⁄8 ⁄8 17 ⁄2 8 ⁄2 12 12 ⁄8 10 ⁄16 7 1 ⁄4 1 ⁄16 1 ⁄2 1 ⁄4 6 - 1" 14 ⁄4 160.0 150.0 1 1 3 3 7 11 1 1 1 3 SP-30 8 ⁄8 1 20 ⁄4 9 ⁄4 13 ⁄4 13 ⁄8 11 ⁄16 7 ⁄2 2 2 ⁄16 1 ⁄2 1 ⁄4 6 - 1" 17 215.0 207.0 7 1 1 3 1 15 1 1 5 1 3 3 SP-31 8 ⁄8 1 ⁄8 22 ⁄2 10 ⁄4 15 15 ⁄8 12 ⁄16 8 ⁄4 2 ⁄4 2 ⁄16 1 ⁄2 1 ⁄4 6 - 1" 18 ⁄4 318.0 265.0 NOTE: Shear Pin “Pin” length equals 2 × “J” dimension.