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About Roller Chain and Sprockets
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Sprockets for Metric Roller Chain
Designed to meet ISO 606 and DIN 8187 international dimensional standards, these sprockets are for use with compatible ISO and DIN roller chain. They come machined to the shaft diameter size listed and are machinable up to the maximum shaft diameter size.
For technical drawings and 3-D models, click on a part number.
Taper-Lock Bushing-Bore Sprockets for Metric Roller Chain
While their teeth fit into metric ISO roller chain, these sprockets use taper-lock bushings to grip shafts. That means you can switch to a different diameter shaft by changing the bushing instead of machining the sprocket. Bushings mount flush inside these sprockets; secure them in place by tightening the set screws included with the bushings. These sprockets have an extended hub that makes them more stable and durable than flat sprockets. All meet ISO 606 (formerly DIN 8187), which is an international standard for sprocket and roller chain dimensions and materials.
For technical drawings and 3-D models, click on a part number.
Number of Teeth | For Bushing Style | OD, mm | Overall Wd., mm | Hub Dia., mm | Teeth Heat Treatment | Material | Specifications Met | Each | |
For ISO 06B Roller Chain (9.53 mm Pitch) | |||||||||
---|---|---|---|---|---|---|---|---|---|
18 | 1008 | 59.94 | 22 | 47.63 | Hardened | Steel | DIN 8187, ISO 606 | 00000000 | 000000 |
For ISO 08B Roller Chain (12.7 mm Pitch) | |||||||||
14 | 1008 | 64.01 | 22 | 46 | Hardened | Steel | DIN 8187, ISO 606 | 00000000 | 00000 |
15 | 1008 | 67.82 | 22 | 46 | Hardened | Steel | DIN 8187, ISO 606 | 00000000 | 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 | |
1008 Style Bushing | |||||||||
14mm | 22mm | 5mm | 2.3mm | 8° | 55 | Steel | Set Screws | 000000000 | 000000 |
16mm | 22mm | 5mm | 2.3mm | 8° | 55 | Steel | Set Screws | 000000000 | 00000 |
18mm | 22mm | 6mm | 2.8mm | 8° | 55 | Steel | Set Screws | 000000000 | 00000 |
19mm | 22mm | 6mm | 2.8mm | 8° | 55 | Steel | Set Screws | 000000000 | 00000 |
20mm | 22mm | 6mm | 2.8mm | 8° | 55 | Steel | Set Screws | 000000000 | 00000 |
22mm | 22mm | 6mm | 2.8mm | 8° | 55 | Steel | Set Screws | 000000000 | 00000 |
1108 Style Bushing | |||||||||
14mm | 22mm | 5mm | 2.3mm | 8° | 55 | Steel | Set Screws | 000000000 | 00000 |
16mm | 22mm | 5mm | 2.3mm | 8° | 55 | Steel | Set Screws | 000000000 | 00000 |
18mm | 22mm | 6mm | 2.8mm | 8° | 55 | Steel | Set Screws | 000000000 | 00000 |
19mm | 22mm | 6mm | 2.8mm | 8° | 55 | Steel | Set Screws | 000000000 | 00000 |
20mm | 22mm | 6mm | 2.8mm | 8° | 55 | Steel | Set Screws | 000000000 | 00000 |
22mm | 22mm | 6mm | 2.8mm | 8° | 55 | Steel | Set Screws | 000000000 | 00000 |
24mm | 22mm | 8mm | 3.3mm | 8° | 55 | Steel | Set Screws | 000000000 | 00000 |
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.
XL Series Corrosion-Resistant Timing Belt Pulleys
Pulleys are anodized aluminum, which is more corrosion resistant than steel. They are XL series (extra light) and have trapezoidal teeth. Select a pulley with a maximum belt width that’s the same or larger than your timing belt width.
For technical drawings and 3-D models, click on a part number.
OD, mm | Number of Teeth | Pitch, mm | For Shaft Dia., mm | Bore Type | Inside Wd., mm | Outside Wd., mm | Overall Wd., mm | Pitch Dia., mm | Fabrication | Material | Hub Dia., mm | Each | |
For 9.5 mm Max. Belt Wd. | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
With Hub—Two Flanges | |||||||||||||
38 | 20 | 5.080 | 8 | Finished | 11.2 | 14.2 | 22 | 32.3 | Machined | Anodized Aluminum | 24 | 00000000 | 000000 |
41 | 22 | 5.080 | 8 | Finished | 11.2 | 14.2 | 22 | 35.6 | Machined | Anodized Aluminum | 25 | 00000000 | 00000 |
44 | 24 | 5.080 | 8 | Finished | 11.2 | 14.2 | 22 | 38.8 | Machined | Anodized Aluminum | 27 | 00000000 | 00000 |
XL Series Lightweight Timing Belt Pulleys
Acetal and aluminum construction makes these pulleys useful in weight-sensitive applications. All are XL series (extra light) and have trapezoidal teeth. Select a pulley with a maximum belt width that’s the same or larger than your timing belt width.
For technical drawings and 3-D models, click on a part number.
Hub | |||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
OD | Number of Teeth | Pitch | For Shaft Dia. | Bore Type | Inside Wd. | Outside Wd. | Overall Wd. | Pitch Dia. | Number of Flanges | Fabrication | Material | Material | Dia. | Each | |
For 3/8" Max. Belt Wd. | |||||||||||||||
Metric | |||||||||||||||
22mm | 10 | 5.000mm | 6mm | Finished | 13mm | 16mm | 22mm | 16.18mm | 2 | Molded | Acetal | Aluminum | 13mm | 0000000 | 000000 |
24mm | 11 | 5.000mm | 6mm | Finished | 13mm | 16mm | 22mm | 17.78mm | 2 | Molded | Acetal | Aluminum | 13mm | 0000000 | 00000 |
25mm | 12 | 5.000mm | 6mm | Finished | 13mm | 16mm | 22mm | 19.41mm | 2 | Molded | Acetal | Aluminum | 13mm | 0000000 | 00000 |
28mm | 14 | 5.000mm | 8mm | Finished | 13mm | 16mm | 22mm | 22.63mm | 2 | Molded | Acetal | Aluminum | 19mm | 0000000 | 00000 |
30mm | 15 | 5.000mm | 8mm | Finished | 13mm | 16mm | 22mm | 24.26mm | 2 | Molded | Acetal | Aluminum | 19mm | 0000000 | 00000 |
32mm | 16 | 5.000mm | 8mm | Finished | 13mm | 16mm | 22mm | 25.88mm | 2 | Molded | Acetal | Aluminum | 19mm | 0000000 | 00000 |
35mm | 18 | 5.000mm | 8mm | Finished | 13mm | 16mm | 22mm | 29.11mm | 2 | Molded | Acetal | Aluminum | 19mm | 0000000 | 00000 |
38mm | 20 | 5.000mm | 8mm | Finished | 13mm | 16mm | 22mm | 32.33mm | 2 | Molded | Acetal | Aluminum | 22mm | 0000000 | 00000 |
40mm | 21 | 5.000mm | 8mm | Finished | 13mm | 16mm | 22mm | 33.96mm | 2 | Molded | Acetal | Aluminum | 22mm | 0000000 | 00000 |
41mm | 22 | 5.000mm | 8mm | Finished | 13mm | 16mm | 22mm | 35.59mm | 2 | Molded | Acetal | Aluminum | 22mm | 0000000 | 00000 |
44mm | 24 | 5.000mm | 8mm | Finished | 13mm | 16mm | 22mm | 38.81mm | 2 | Molded | Acetal | Aluminum | 22mm | 0000000 | 00000 |
48mm | 26 | 5.000mm | 8mm | Finished | 13mm | 16mm | 22mm | 42.04mm | 2 | Molded | Acetal | Aluminum | 22mm | 0000000 | 00000 |
51mm | 28 | 5.000mm | 8mm | Finished | 13mm | 16mm | 22mm | 45.29mm | 2 | Molded | Acetal | Aluminum | 22mm | 0000000 | 00000 |
54mm | 30 | 5.000mm | 10mm | Finished | 13mm | 16mm | 22mm | 48.51mm | 2 | Molded | Acetal | Aluminum | 22mm | 0000000 | 00000 |
57mm | 32 | 5.000mm | 10mm | Finished | 13mm | 16mm | 22mm | 51.74mm | 2 | Molded | Acetal | Aluminum | 22mm | 0000000 | 00000 |
64mm | 36 | 5.000mm | 10mm | Finished | 13mm | 16mm | 22mm | 58.22mm | 2 | Molded | Acetal | Aluminum | 22mm | 0000000 | 00000 |
70mm | 40 | 5.000mm | 10mm | Finished | 13mm | 16mm | 22mm | 64.67mm | 2 | Molded | Acetal | Aluminum | 22mm | 0000000 | 00000 |
74mm | 42 | 5.000mm | 10mm | Finished | 13mm | 16mm | 22mm | 67.92mm | 2 | Molded | Acetal | Aluminum | 22mm | 0000000 | 00000 |
77mm | 44 | 5.000mm | 10mm | Finished | 13mm | 16mm | 22mm | 71.15mm | 2 | Molded | Acetal | Aluminum | 22mm | 0000000 | 00000 |
83mm | 48 | 5.000mm | 12mm | Finished | 13mm | 16mm | 22mm | 77.62mm | 2 | Molded | Acetal | Aluminum | 22mm | 0000000 | 00000 |
97mm | 60 | 5.000mm | 12mm | Finished | __ | 13mm | 22mm | 97.03mm | __ | Molded | Acetal | Aluminum | 22mm | 0000000 | 00000 |
High-Strength Corrosion-Resistant HTD Timing Belt Pulleys
Move belts forward and backward or stop and start them in precise positions, especially in areas where rust is a concern. The curved teeth on these high-torque drive (HTD) pulleys have more surface contact with belts than traditional trapezoidal teeth, which allows you to apply more torque without damaging belts. These teeth fit together seamlessly to prevent backlash, or unwanted movement of the belt on the pulley, for a smooth, quiet cycle. These pulleys are often used in 3D printing, machine tool drives, robotics, and other applications where precision is essential. They are also known as curvilinear belt pulleys.
Pair pulleys with an HTD timing belt that has the same pitch. The width of your belt should not be larger than the maximum belt width listed.
Aluminum pulleys will not rust in damp or humid environments, but water left on the surface will cause them to corrode.
For technical drawings and 3-D models, click on a part number.
Manufacturer Series | OD, mm | Number of Teeth | Pitch, mm | For Shaft Dia., mm | Bore Type | Inside Wd., mm | Outside Wd., mm | Overall Wd., mm | Pitch Dia., mm | Number of Flanges | Fabrication | Hub Dia., mm | Each | |
For 12 mm Max. Belt Wd. | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Gates PowerGrip 2GT | 15 | 20 | 2 | 5 | Finished | 13 | 14.2 | 22 | 12.73 | 1 | Machined | 15 | 0000000 | 00000 |
Metal Gears and Gear Racks—20° Pressure Angle
The current industry standard, these 20° pressure angle gears have thicker, stronger teeth than 14½° pressure angle gears. Compared to plastic gears and racks, they’re better for high-load, high-speed, and heavy duty applications. Also known as spur gears.
Combine gears with different numbers of teeth to change speed and torque in your assembly. Combine a gear and rack to convert rotary motion into linear motion. To minimize your footprint, mount one or more standard gears inside of an internal gear.
For components to mesh correctly, they must have the same pressure angle and pitch/module.
Carbon steel components have hard, strong, and wear-resistant teeth, although they will rust when exposed to moisture and corrosive chemicals. They're best for high-torque machines, like lifting equipment, and heavy duty applications, such as rock crushing. Gears with teeth that are not hardened can be hardened to fit your application.
Stainless steel gears and racks resist rust in damp and wet environments, so they're commonly used in food-processing plants and other areas with frequent cleaning. Gears with a clamping bore have a built-in clamp that securely grips shafts without marring them. Use the included clamping screw to tighten or loosen the grip.
For technical drawings and 3-D models, click on a part number.
Hub | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Module | Number of Teeth | Gear Pitch Dia., mm | OD, mm | Face Wd., mm | Overall Wd., mm | For Shaft Dia., mm | Material | Teeth Heat Treatment | Dia., mm | Wd., mm | Set Screw Thread Size | Clamping Screw Thread Size | Each | |
Round Bore with Set Screw | ||||||||||||||
0.8 | 16 | 12.8 | 14.4 | 8 | 22 | 5 | Black-Oxide 1045 Carbon Steel | Not Hardened | 14.4 | 14 | M4 | __ | 00000000 | 000000 |
Clamping Bore with Clamping Screw | ||||||||||||||
0.5 | 24 | 12 | 13.5 | 7 | 22 | 5 | 303 Stainless Steel | Not Hardened | 14 | 8 | __ | M2.5 | 0000000 | 00000 |
Metal Worms and Worm Gears
Worm gears use screw threads to make large reductions to shaft speed while transmitting motion at a right angle. They transmit motion from worm to gear and cannot be reversed. For gears and worms to mesh correctly, they must have the same pressure angle and pitch/module. These worms are compatible with plastic worm gears.
Speed ratio is the ratio by which output shaft speed is reduced. As speed decreases, torque increases.
Cast iron gears are strong and durable.
Bronze gears have low friction and dissipate heat better than cast iron gears to provide a long service life for both the gear and the worm. They’re also more corrosion resistant than cast iron gears.
For technical drawings and 3-D models, click on a part number.
Hub | |||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Module | Speed Ratio | Number of Teeth | Pressure Angle | Gear Pitch Dia., mm | For Number of Thread Starts | OD, mm | Face Wd., mm | Overall Wd., mm | For Shaft Dia., mm | Dia., mm | Wd., mm | Material | For Thread Direction | Teeth Heat Treatment | Teeth Fabrication | Each | |
Round Bore—Cast Iron | |||||||||||||||||
1.5 | 30:1 | 30 | 20° | 45 | 1 | 49.5 | 12 | 22 | 10 | 30 | 10 | Cast Iron | Right Hand | Not Hardened | Not Ground | 000000000 | 000000 |
1.5 | 40:1 | 40 | 20° | 60 | 1 | 64.5 | 12 | 22 | 12 | 30 | 10 | Cast Iron | Right Hand | Not Hardened | Not Ground | 000000000 | 00000 |
Round Bore—Bronze | |||||||||||||||||
1.5 | 15:1 | 30 | 20° | 45 | 2 | 49.5 | 12 | 22 | 10 | 30 | 10 | Bronze | Right Hand | Not Hardened | Not Ground | 000000000 | 00000 |
1.5 | 20:1 | 20 | 20° | 30 | 1 | 34.5 | 12 | 22 | 8 | 22 | 10 | Bronze | Right Hand | Not Hardened | Not Ground | 000000000 | 00000 |
1.5 | 30:1 | 30 | 20° | 45 | 1 | 49.5 | 12 | 22 | 10 | 30 | 10 | Bronze | Right Hand | Not Hardened | Not Ground | 000000000 | 00000 |
1.5 | 10:1 | 20 | 20° | 30 | 2 | 34.5 | 12 | 22 | 8 | 22 | 10 | Bronze | Right Hand | Not Hardened | Not Ground | 000000000 | 00000 |
Metal Bevel Gears
A type of miter gear where one gear (sometimes called a pinion) is smaller than the other, bevel gears provide right-angle speed reduction at speed ratios ranging from 2:1 to 5:1. All are carbon steel for strength; they're compatible with plastic bevel gears. Teeth are not hardened so you can harden them to fit your application. Hardening a gear’s teeth increases its wear resistance.
A complete set consists of a gear and pinion (sold separately). For a gear and pinion to mesh correctly, they must have the same pressure angle, pitch/module, and face width. Speed ratio is the ratio by which shaft speed is reduced when transferring motion from pinion to gear. To increase shaft speed, transfer motion from gear to pinion. Changing shaft speed also changes torque: as speed decreases, torque increases.
For technical drawings and 3-D models, click on a part number.
Hub | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Face Wd., mm | Module | Pressure Angle | Speed Ratio | Number of Teeth | Gear Pitch Dia., mm | OD, mm | Overall Wd., mm | For Shaft Dia., mm | Mounting Distance (A), mm | Dia., mm | Wd., mm | Material | Each | |
Round Bore | ||||||||||||||
11 | 2 | 20° | 2:1 | 30 | 60 | 61 | 22 | 10 | 31 | 30 | 10 | Black-Oxide 1045 Carbon Steel | 00000000 | 000000 |
Hub | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Face Wd., mm | Module | Pressure Angle | Speed Ratio | Number of Teeth | Gear Pitch Dia., mm | OD, mm | Overall Wd., mm | For Shaft Dia., mm | Mounting Distance (B), mm | Dia., mm | Wd., mm | Material | Each | |
Round Bore | ||||||||||||||
11 | 2 | 20° | 2:1 | 15 | 30 | 35 | 21 | 8 | 40 | 22 | 8 | Black-Oxide 1045 Carbon Steel | 00000000 | 000000 |
Plastic Worm Gears
These plastic gears are lighter and quieter than metal gears—pair them with metal worms for lubrication-free operation. Worm gears use screw threads to make large reductions to shaft speed while transmitting motion at a right angle. They transmit motion from worm to gear and cannot be reversed. For gears and worms to mesh correctly, they must have the same pressure angle and module.
Speed ratio is the ratio by which output shaft speed is reduced. As speed decreases, torque increases.
Nylon gears are lightweight and stronger than acetal gears.
For technical drawings and 3-D models, click on a part number.
Hub | |||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Module | Speed Ratio | Number of Teeth | Pressure Angle | Gear Pitch Dia., mm | For Number of Thread Starts | OD, mm | Face Width, mm | Overall Width, mm | For Shaft Diameter, mm | Material | Fabrication | Color | Diameter, mm | Width, mm | For Thread Direction | Each | |
Round Bore | |||||||||||||||||
1.5 | 10:1 | 20 | 20° | 30 | 2 | 34.5 | 12 | 22 | 8 | Nylon Plastic | Molded | Blue | 22 | 10 | Right Hand | 00000000 | 000000 |