Number of Teeth Number of Teeth |
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System of Measurement System of Measurement |
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For Shaft Diameter For Shaft Diameter |
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Bore Type Bore Type |
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 | Machinable |
OD OD |
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ID ID | Show |
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ID ID | Hide |
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For Roller Chain Strand Type For Roller Chain Strand Type |
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 | Single |
Roller Chain Standard Roller Chain Standard |
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Overall Width Overall Width |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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For Maximum Shaft Diameter For Maximum Shaft Diameter |
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Sprocket Type Sprocket Type |
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Bushing Type Bushing Type |
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Shaft Mount Type Shaft Mount Type |
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Keyway Width Keyway Width |
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Fastener Tightening Torque Fastener Tightening Torque |
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About Roller Chain and Sprockets
More
Flat Sprockets for Metric Roller Chain
With metric teeth and slim profile, these sprockets allow your ISO roller chain to reach narrow spaces. They're commonly referred to as A-plate sprockets. Machine the unfinished bore to fit your shaft—sprockets come machined to the shaft diameter listed and are machinable up to the maximum shaft diameter size. Sprockets meet DIN 8187 and ISO 606, international standards for sprockets and roller chains.
For technical drawings and 3-D models, click on a part number.
| Number of Teeth | For Shaft Dia., mm | For Max. Shaft Dia., mm | OD, mm | Overall Wd., mm | Material | Specifications Met | Each | |
For ISO 08B Roller Chain (12.7 mm Pitch) | ||||||||
|---|---|---|---|---|---|---|---|---|
| 95 | 24 | 371 | 390.91 | 8 | Steel | DIN 8187, ISO 606 | 00000000 | 0000000 |
| 96 | 24 | 375 | 394.97 | 8 | Steel | DIN 8187, ISO 606 | 00000000 | 000000 |
| 114 | 24 | 448 | 467.87 | 8 | Steel | DIN 8187, ISO 606 | 00000000 | 000000 |
For ISO 10B Roller Chain (15.875 mm Pitch) | ||||||||
| 48 | 24 | 226 | 251.71 | 9 | Steel | DIN 8187, ISO 606 | 00000000 | 00000 |
| 49 | 24 | 231 | 256.79 | 9 | Steel | DIN 8187, ISO 606 | 00000000 | 00000 |
| 50 | 24 | 236 | 261.87 | 9 | Steel | DIN 8187, ISO 606 | 00000000 | 00000 |
| 51 | 24 | 241 | 266.95 | 9 | Steel | DIN 8187, ISO 606 | 00000000 | 00000 |
| 52 | 24 | 246 | 272.03 | 9 | Steel | DIN 8187, ISO 606 | 00000000 | 00000 |
| 53 | 24 | 251 | 277.11 | 9 | Steel | DIN 8187, ISO 606 | 00000000 | 00000 |
| 54 | 24 | 256 | 282.19 | 9 | Steel | DIN 8187, ISO 606 | 00000000 | 00000 |
| 55 | 24 | 262 | 287.02 | 9 | Steel | DIN 8187, ISO 606 | 00000000 | 00000 |
| 56 | 24 | 267 | 292.1 | 9 | Steel | DIN 8187, ISO 606 | 00000000 | 00000 |
| 57 | 24 | 272 | 297.18 | 9 | Steel | DIN 8187, ISO 606 | 00000000 | 00000 |
| 58 | 24 | 277 | 302.26 | 9 | Steel | DIN 8187, ISO 606 | 00000000 | 00000 |
| 59 | 24 | 282 | 307.34 | 9 | Steel | DIN 8187, ISO 606 | 00000000 | 00000 |
| 60 | 24 | 287 | 312.42 | 9 | Steel | DIN 8187, ISO 606 | 00000000 | 000000 |
| 70 | 24 | 337 | 362.97 | 9 | Steel | DIN 8187, ISO 606 | 00000000 | 000000 |
| 72 | 24 | 348 | 373.13 | 9 | Steel | DIN 8187, ISO 606 | 00000000 | 000000 |
| 76 | 24 | 368 | 393.45 | 9 | Steel | DIN 8187, ISO 606 | 00000000 | 000000 |
| 80 | 24 | 388 | 413.51 | 9 | Steel | DIN 8187, ISO 606 | 00000000 | 000000 |
| 84 | 24 | 408 | 433.83 | 9 | Steel | DIN 8187, ISO 606 | 00000000 | 000000 |
| 95 | 24 | 464 | 489.46 | 9 | Steel | DIN 8187, ISO 606 | 00000000 | 000000 |
| 96 | 24 | 469 | 494.54 | 9 | Steel | DIN 8187, ISO 606 | 00000000 | 000000 |
| 112 | 24 | 550 | 575.31 | 9 | Steel | DIN 8187, ISO 606 | 00000000 | 000000 |
| 114 | 24 | 560 | 585.47 | 9 | Steel | DIN 8187, ISO 606 | 00000000 | 000000 |
For ISO 12B Roller Chain (19.05 mm Pitch) | ||||||||
| 38 | 24 | 212 | 241.05 | 12 | Steel | DIN 8187, ISO 606 | 00000000 | 00000 |
| 39 | 24 | 218 | 247.14 | 12 | Steel | DIN 8187, ISO 606 | 00000000 | 00000 |
| 40 | 24 | 225 | 252.98 | 12 | Steel | DIN 8187, ISO 606 | 00000000 | 00000 |
| 41 | 24 | 231 | 259.08 | 12 | Steel | DIN 8187, ISO 606 | 00000000 | 00000 |
| 42 | 24 | 237 | 265.18 | 12 | Steel | DIN 8187, ISO 606 | 00000000 | 00000 |
| 43 | 24 | 243 | 271.27 | 12 | Steel | DIN 8187, ISO 606 | 00000000 | 00000 |
| 44 | 24 | 249 | 277.37 | 12 | Steel | DIN 8187, ISO 606 | 00000000 | 00000 |
For ISO 16B Roller Chain (25.4 mm Pitch) | ||||||||
| 18 | 24 | 121 | 159.26 | 17 | Steel | DIN 8187, ISO 606 | 00000000 | 00000 |
| 19 | 24 | 130 | 167.39 | 17 | Steel | DIN 8187, ISO 606 | 00000000 | 00000 |
| 20 | 24 | 138 | 175.51 | 17 | Steel | DIN 8187, ISO 606 | 00000000 | 00000 |
| 21 | 24 | 146 | 183.64 | 17 | Steel | DIN 8187, ISO 606 | 00000000 | 00000 |
| 22 | 24 | 154 | 192.02 | 17 | Steel | DIN 8187, ISO 606 | 00000000 | 00000 |
| 23 | 24 | 162 | 200.15 | 17 | Steel | DIN 8187, ISO 606 | 00000000 | 00000 |
| 24 | 24 | 170 | 208.28 | 17 | Steel | DIN 8187, ISO 606 | 00000000 | 00000 |
| 25 | 24 | 178 | 216.41 | 17 | Steel | DIN 8187, ISO 606 | 00000000 | 00000 |
For ISO 20B Roller Chain (31.75 mm Pitch) | ||||||||
| 16 | 24 | 131 | 178.56 | 19 | Steel | DIN 8187, ISO 606 | 00000000 | 00000 |
| 17 | 24 | 142 | 188.98 | 19 | Steel | DIN 8187, ISO 606 | 00000000 | 00000 |
For ISO 24B Roller Chain (38.1 mm Pitch) | ||||||||
| 14 | 24 | 131 | 187.2 | 25 | Steel | DIN 8187, ISO 606 | 00000000 | 000000 |
Quick-Disconnect (QD) Bushings
The screw connections on these bushings easily mate to compatible quick-disconnect sprockets and pulleys. Bushings fit quick-disconnect (QD) sprockets and pulleys of the same bushing style. As you tighten the included screws, the bushing grips the shaft and pulls it into the sprocket or pulley.
For technical drawings and 3-D models, click on a part number.
Keyway | ||||||||
|---|---|---|---|---|---|---|---|---|
| For Shaft Dia. | Overall Wd. | Wd. | Dp. | Fastener Tightening Torque, in.-lbs. | Material | Includes | Each | |
Clamp On | ||||||||
SD Style Bushing | ||||||||
| 24mm | 54mm | 8mm | 3.3mm | 108 | Steel | Clamping Screws | 0000000 | 000000 |
SDS Style Bushing | ||||||||
| 24mm | 43mm | 8mm | 3.3mm | 108 | Steel | Clamping Screws | 0000000 | 00000 |
SH Style Bushing | ||||||||
| 24mm | 41mm | 8mm | 3.3mm | 108 | Steel | Clamping Screws | 0000000 | 00000 |
SK Style Bushing | ||||||||
| 24mm | 59mm | 8mm | 3.3mm | 180 | Steel | Clamping Screws | 0000000 | 00000 |
Taper-Lock Bushings
Mount these hubless bushings flush into your sprocket or pulley for a slim profile with no protruding screws. They are for use with taper-lock sprockets of the same bushing style. As you tighten the included set screws, the bushing grips the shaft and pulls it into your sprocket or pulley.
For technical drawings and 3-D models, click on a part number.
Keyway | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| For Shaft Dia. | Overall Wd. | Wd. | Dp. | Taper | Fastener Tightening Torque, in.-lbs. | Material | Includes | Each | |
1108 Style Bushing | |||||||||
| 24mm | 22mm | 8mm | 3.3mm | 8° | 55 | Steel | Set Screws | 000000000 | 000000 |
1210 Style Bushing | |||||||||
| 24mm | 25mm | 8mm | 3.3mm | 8° | 175 | Steel | Set Screws | 000000000 | 00000 |
1215 Style Bushing | |||||||||
| 24mm | 38mm | 8mm | 3.3mm | 8° | 175 | Steel | Set Screws | 000000000 | 00000 |
1610 Style Bushing | |||||||||
| 24mm | 25mm | 8mm | 3.3mm | 8° | 175 | Steel | Set Screws | 000000000 | 00000 |
1615 Style Bushing | |||||||||
| 24mm | 38mm | 8mm | 3.3mm | 8° | 175 | Steel | Set Screws | 000000000 | 00000 |
2012 Style Bushing | |||||||||
| 24mm | 32mm | 8mm | 3.3mm | 8° | 280 | Steel | Set Screws | 000000000 | 00000 |
2517 Style Bushing | |||||||||
| 24mm | 44mm | 8mm | 3.3mm | 8° | 430 | Steel | Set Screws | 000000000 | 00000 |
Split-Tapered Bushings
The tapered barrel on these bushings is split on both sides, allowing them to contract more tightly around the shaft than quick-disconnect and taper-lock bushings. They're for use with split-tapered sprockets and pulleys of the same bushing style. As you tighten the included screws, the bushing grips the shaft and pulls it into the sprocket or pulley.
Bushings with a machine key fit into a matching keyway on a sprocket or pulley for high-torque applications.
Self-Centering Screw-Clamp Bushings
A mounting flange prevents movement during tightening, so it's easy to center these bushings in your sprocket. They are also good for shock loads. When you tighten the included screws, the bushing's inner sleeve contracts onto the shaft and the outer sleeve expands to hold your sprocket, pulley, or gear. They can be mounted on shafts with or without keyways.
| For Shaft Dia. | OD | Overall Wd. | Max. Torque, in.-lbs. | Fastener Tightening Torque, in.-lbs. | Material | Includes | Each | |
| 24mm | 42mm | 30mm | 2,900 | 90 | Steel | Clamping Screws | 0000000 | 000000 |
Quick-Grip Screw-Clamp Bushings
Also known as Trantorque bushings, these tighten with a twist of the collar nut—no screws needed. As you tighten the collar nut, the inner sleeve contracts onto the shaft and the outer sleeve expands to hold your sprocket, pulley, or gear.
For technical drawings and 3-D models, click on a part number.
Flush-Mount Screw-Clamp Bushings
Insert these bushings into the bore of your sprocket for flush or recessed mounting. They handle shock loads and have higher torque ratings than self-centering bushings. When you tighten the included clamping screws, the bushing's inner sleeve contracts onto the shaft and the outer sleeve expands to hold your sprocket, pulley, or gear. They can be mounted on shafts with or without keyways.
For technical drawings and 3-D models, click on a part number.
| For Shaft Dia. | OD | Overall Wd. | Max. Torque, in.-lbs. | Fastener Tightening Torque, in.-lbs. | Material | Includes | Each | |
| 24mm | 55mm | 40mm | 6,650 | 142 | Steel | Clamping Screws | 0000000 | 0000000 |