About Roller Chain and Sprockets
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Sprockets for ANSI Roller Chain
Mount these sprockets onto your shaft and secure with a set screw—no machining necessary.
For technical drawings and 3-D models, click on a part number.
Keyway | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
Number of Teeth | For Shaft Dia. | OD | Overall Wd. | Hub Dia. | Wd. | Dp. | Material | Includes | Each | |
16 | 1 5/8" | 3.52" | 1" | 2 1/2" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 000000 |
17 | 1 5/8" | 3.72" | 1" | 2 11/16" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 00000 |
18 | 1 5/8" | 3.92" | 1" | 2 7/8" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 00000 |
19 | 1 5/8" | 4.12" | 1" | 3" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 00000 |
20 | 1 5/8" | 4.32" | 1" | 3" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 00000 |
32 | 1 5/8" | 6.72" | 1 1/4" | 3 1/4" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 00000 |
34 | 1 5/8" | 7.12" | 1 1/4" | 3 1/4" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 000000 |
35 | 1 5/8" | 7.32" | 1 1/4" | 3 1/4" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 000000 |
36 | 1 5/8" | 7.52" | 1 1/4" | 3 1/4" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 000000 |
38 | 1 5/8" | 7.92" | 1 1/4" | 3 1/4" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 000000 |
40 | 1 5/8" | 8.32" | 1 1/4" | 3 1/4" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 000000 |
42 | 1 5/8" | 8.72" | 1 1/4" | 3 1/4" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 000000 |
45 | 1 5/8" | 9.31" | 1 1/4" | 3 3/4" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 000000 |
48 | 1 5/8" | 9.91" | 1 1/4" | 3 3/4" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 000000 |
54 | 1 5/8" | 11.11" | 1 1/4" | 3 3/4" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 000000 |
60 | 1 5/8" | 12.3" | 1 1/4" | 3 3/4" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 000000 |
70 | 1 5/8" | 14.29" | 1 3/4" | 3 3/4" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 000000 |
72 | 1 5/8" | 14.69" | 1 3/4" | 3 3/4" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 000000 |
Keyway | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
Number of Teeth | For Shaft Dia. | OD | Overall Wd. | Hub Dia. | Wd. | Dp. | Material | Includes | Each | |
14 | 1 5/8" | 3.74" | 1 1/4" | 2 9/16" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 000000 |
15 | 1 5/8" | 3.98" | 1 1/4" | 2 7/8" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 00000 |
16 | 1 5/8" | 4.22" | 1 1/4" | 3 1/16" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 00000 |
17 | 1 5/8" | 4.46" | 1 1/4" | 3 1/4" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 00000 |
18 | 1 5/8" | 4.7" | 1 1/4" | 3 1/2" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 00000 |
19 | 1 5/8" | 4.95" | 1 1/4" | 3 1/2" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 00000 |
20 | 1 5/8" | 5.19" | 1 1/4" | 3 7/8" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 00000 |
21 | 1 5/8" | 5.43" | 1 1/4" | 4" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 00000 |
22 | 1 5/8" | 5.67" | 1 1/4" | 4" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 00000 |
23 | 1 5/8" | 5.91" | 1 1/4" | 4" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 00000 |
24 | 1 5/8" | 6.15" | 1 1/4" | 4" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 000000 |
25 | 1 5/8" | 6.39" | 1 1/4" | 4" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 000000 |
26 | 1 5/8" | 6.63" | 1 1/4" | 4" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 000000 |
28 | 1 5/8" | 7.11" | 1 1/4" | 4" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 000000 |
30 | 1 5/8" | 7.59" | 1 1/4" | 4" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 000000 |
32 | 1 5/8" | 8.07" | 1 1/4" | 4" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 000000 |
34 | 1 5/8" | 8.54" | 1 1/4" | 4" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 000000 |
35 | 1 5/8" | 8.78" | 1 1/4" | 4" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 000000 |
36 | 1 5/8" | 9.02" | 1 1/4" | 4" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 000000 |
38 | 1 5/8" | 9.5" | 1 1/4" | 4 1/4" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 000000 |
40 | 1 5/8" | 9.98" | 1 1/4" | 4 1/4" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 000000 |
42 | 1 5/8" | 10.46" | 1 1/4" | 4 1/4" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 000000 |
45 | 1 5/8" | 11.18" | 1 1/4" | 4 1/4" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 000000 |
48 | 1 5/8" | 11.89" | 1 1/4" | 4 1/4" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 000000 |
54 | 1 5/8" | 13.33" | 1 3/4" | 4 1/4" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 000000 |
60 | 1 5/8" | 14.76" | 1 3/4" | 4 1/4" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 000000 |
70 | 1 5/8" | 17.15" | 1 3/4" | 4 1/4" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 000000 |
72 | 1 5/8" | 17.63" | 2" | 4 1/4" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 000000 |
Keyway | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
Number of Teeth | For Shaft Dia. | OD | Overall Wd. | Hub Dia. | Wd. | Dp. | Material | Includes | Each | |
11 | 1 5/8" | 4.01" | 1 5/8" | 2 13/16" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 000000 |
12 | 1 5/8" | 4.33" | 1 5/8" | 3 1/8" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 00000 |
13 | 1 5/8" | 4.66" | 1 1/2" | 3" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 00000 |
14 | 1 5/8" | 4.98" | 1 1/2" | 3 1/4" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 00000 |
15 | 1 5/8" | 5.3" | 1 1/2" | 3 1/2" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 00000 |
16 | 1 5/8" | 5.63" | 1 1/2" | 4" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 00000 |
17 | 1 5/8" | 5.95" | 1 1/2" | 4" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 000000 |
18 | 1 5/8" | 6.27" | 1 1/2" | 4 1/4" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 000000 |
19 | 1 5/8" | 6.59" | 1 1/2" | 4 1/4" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 000000 |
20 | 1 5/8" | 6.91" | 1 1/2" | 4 1/4" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 000000 |
Wear-Resistant Sprockets for ANSI Roller Chain
Hardened teeth give these steel sprockets increased wear resistance for a long service life. Mount them onto your shaft and secure with a set screw—no machining necessary.
For technical drawings and 3-D models, click on a part number.
Keyway | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
Number of Teeth | For Shaft Dia. | OD | Overall Wd. | Hub Dia. | Wd. | Dp. | Material | Includes | Each | |
16 | 1 5/8" | 3.52" | 1" | 2 1/2" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 000000 |
17 | 1 5/8" | 3.72" | 1" | 2 11/16" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 00000 |
18 | 1 5/8" | 3.92" | 1" | 2 7/8" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 00000 |
19 | 1 5/8" | 4.12" | 1" | 3" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 00000 |
20 | 1 5/8" | 4.32" | 1" | 3" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 00000 |
Keyway | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
Number of Teeth | For Shaft Dia. | OD | Overall Wd. | Hub Dia. | Wd. | Dp. | Material | Includes | Each | |
14 | 1 5/8" | 3.74" | 1 1/4" | 2 9/16" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 000000 |
15 | 1 5/8" | 3.98" | 1 1/4" | 2 7/8" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 00000 |
16 | 1 5/8" | 4.22" | 1 1/4" | 3 1/16" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 00000 |
17 | 1 5/8" | 4.46" | 1 1/4" | 3 1/4" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 00000 |
18 | 1 5/8" | 4.7" | 1 1/4" | 3 1/2" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 00000 |
19 | 1 5/8" | 4.95" | 1 1/4" | 3 1/2" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 00000 |
20 | 1 5/8" | 5.19" | 1 1/4" | 3 7/8" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 00000 |
Keyway | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
Number of Teeth | For Shaft Dia. | OD | Overall Wd. | Hub Dia. | Wd. | Dp. | Material | Includes | Each | |
11 | 1 5/8" | 4.01" | 1 5/8" | 2 13/16" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 000000 |
12 | 1 5/8" | 4.33" | 1 5/8" | 3 1/8" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 00000 |
13 | 1 5/8" | 4.66" | 1 1/2" | 3" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 00000 |
14 | 1 5/8" | 4.98" | 1 1/2" | 3 1/4" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 00000 |
15 | 1 5/8" | 5.3" | 1 1/2" | 3 13/16" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 000000 |
16 | 1 5/8" | 5.63" | 1 1/2" | 4" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 000000 |
17 | 1 5/8" | 5.95" | 1 1/2" | 4" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 000000 |
18 | 1 5/8" | 6.27" | 1 1/2" | 4 1/4" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 000000 |
19 | 1 5/8" | 6.59" | 1 1/2" | 4 1/4" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 000000 |
20 | 1 5/8" | 6.91" | 1 1/2" | 4 1/4" | 3/8" | 3/16" | Steel | Two Set Screws | 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 | ||||||||
1 5/8" | 1 13/16" | 3/8" | 3/16" | 108 | Steel | Clamping Screws | 00000000 | 000000 |
SDS Style Bushing | ||||||||
1 5/8" | 1 3/8" | 3/8" | 3/16" | 108 | Steel | Clamping Screws | 00000000 | 00000 |
SF Style Bushing | ||||||||
1 5/8" | 2 1/16" | 3/8" | 3/16" | 360 | Steel | Clamping Screws | 00000000 | 00000 |
SH Style Bushing | ||||||||
1 5/8" | 1 5/16" | 3/8" | 1/16" | 108 | Steel | Clamping Screws, Machine Key | 00000000 | 00000 |
SK Style Bushing | ||||||||
1 5/8" | 1 15/16" | 3/8" | 3/16" | 180 | Steel | Clamping Screws | 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 | |
1610 Style Bushing | |||||||||
1 5/8" | 1" | 3/8" | 1/8" | 8° | 175 | Steel | Machine Key, Set Screws | 000000000 | 000000 |
1615 Style Bushing | |||||||||
1 5/8" | 1 1/2" | 3/8" | 1/8" | 8° | 175 | Steel | Machine Key, Set Screws | 000000000 | 00000 |
2012 Style Bushing | |||||||||
1 5/8" | 1 1/4" | 3/8" | 3/16" | 8° | 280 | Steel | Set Screws | 000000000 | 00000 |
2517 Style Bushing | |||||||||
1 5/8" | 1 3/4" | 3/8" | 3/16" | 8° | 430 | Steel | Set Screws | 000000000 | 00000 |
3020 Style Bushing | |||||||||
1 5/8" | 2" | 3/8" | 3/16" | 8° | 800 | Steel | Set Screws | 000000000 | 00000 |
3030 Style Bushing | |||||||||
1 5/8" | 3" | 3/8" | 3/16" | 8° | 800 | Cast Iron | Set Screws | 000000000 | 000000 |
3535 Style Bushing | |||||||||
1 5/8" | 3 1/2" | 3/8" | 3/16" | 8° | 1,000 | Cast Iron | Set Screws | 000000000 | 000000 |
4040 Style Bushing | |||||||||
1 5/8" | 4" | 3/8" | 3/16" | 8° | 1,700 | Cast Iron | Set Screws | 000000000 | 000000 |
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.
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. | Each | |
Steel | |||||||
P1 Style Bushing with Machine Key | |||||||
1 5/8" | 1 15/16" | 3/8" | 5/16" | 3° | 192 | 00000000 | 000000 |
P2 Style Bushing with Machine Key | |||||||
1 5/8" | 2 15/16" | 3/8" | 5/16" | 3° | 192 | 00000000 | 00000 |
Q1 Style Bushing with Machine Key | |||||||
1 5/8" | 2 1/2" | 3/8" | 3/16" | 3° | 348 | 00000000 | 00000 |
High-Strength HTD Timing Belt Pulleys
These HTD (high torque drive) pulleys have a curved tooth shape that provides higher strength than trapezoidal teeth. Select a pulley with a maximum belt width that’s the same or larger than your timing belt width.
Bushing-mount pulleys grip the shaft more securely than pulleys that press fit. Quick-disconnect (QD) bushings and split-tapered bushings sold separately.
For technical drawings and 3-D models, click on a part number.
For Belt Trade Size | OD, mm | Number of Teeth | Pitch, mm | ID | Bore Type | For Bushing Style | Inside Wd., mm | Outside Wd., mm | Overall Wd., mm | Pitch Dia., mm | Number of Flanges | Fabrication | Material | Each | |
For 20 mm Max. Belt Wd. | |||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
H8M | 80.01 | 28 | 8 | 1.625" | Finished | Split Tapered Style H | 22.23 | 28.58 | 28.58 | 71.297 | 2 | Machined | Black-Oxide Iron | 00000000 | 000000 |
H8M | 85.09 | 30 | 8 | 1.625" | Finished | Split Tapered Style H | 22.23 | 28.58 | 28.58 | 76.403 | 2 | Machined | Black-Oxide Iron | 00000000 | 00000 |
For 30 mm Max. Belt Wd. | |||||||||||||||
H8M | 80.01 | 28 | 8 | 1.625" | Finished | Split Tapered Style H | 31.75 | 38.1 | 38.1 | 71.297 | 2 | Machined | Black-Oxide Iron | 00000000 | 00000 |
H8M | 85.09 | 30 | 8 | 1.625" | Finished | Split Tapered Style H | 31.75 | 38.1 | 38.1 | 76.403 | 2 | Machined | Black-Oxide Iron | 00000000 | 00000 |
H8M | 89.92 | 32 | 8 | 1.625" | Finished | Split Tapered Style H | 31.88 | 38.23 | 38.23 | 81.483 | 2 | Machined | Black-Oxide Iron | 00000000 | 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.
Stainless steel pulleys can be wetted repeatedly without rusting or staining.
Bushing-mount pulleys grip the shaft more securely than press-fit pulleys, but require a quick-disconnect (QD) bushing or a split-tapered bushing (not included).
For technical drawings and 3-D models, click on a part number.
OD, mm | Number of Teeth | Pitch, mm | ID | Bore Type | For Bushing Style | Inside Wd., mm | Outside Wd., mm | Overall Wd., mm | Pitch Dia., mm | Number of Flanges | Fabrication | Each | |
For 20 mm Max. Belt Wd. | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
80.17 | 28 | 8 | 1.625" | Finished | Split Tapered Style H | 22.35 | 28.58 | 28.58 | 71.3 | 2 | Machined | 0000000 | 0000000 |
84.94 | 30 | 8 | 1.625" | Finished | Split Tapered Style H | 22.35 | 28.58 | 28.58 | 76.4 | 2 | Machined | 0000000 | 000000 |
For 30 mm Max. Belt Wd. | |||||||||||||
78.49 | 28 | 8 | 1.625" | Finished | Split Tapered Style H | 33.32 | 38.1 | 38.1 | 71.3 | 2 | Machined | 0000000 | 000000 |
84.94 | 30 | 8 | 1.625" | Finished | Split Tapered Style H | 31.75 | 38.1 | 38.1 | 76.4 | 2 | Machined | 0000000 | 000000 |
90.48 | 32 | 8 | 1.625" | Finished | Split Tapered Style H | 31.75 | 38.1 | 38.1 | 81.48 | 2 | Machined | 0000000 | 000000 |
High-Strength Ultra-Quiet Timing Belt Pulleys
Teeth are curved and set in an offset pattern for high strength with 25% less operating noise than pulleys and belts with trapezoidal teeth. Select a pulley with a maximum belt width that’s the same or larger than your timing belt width.
Bushing-mount pulleys grip the shaft more securely than pulleys that press fit. Quick-disconnect (QD) bushings and split-tapered bushings sold separately.
For technical drawings and 3-D models, click on a part number.
OD, mm | Number of Teeth | Pitch, mm | ID | Bore Type | For Bushing Style | Outside Wd., mm | Overall Wd., mm | Pitch Dia., mm | Fabrication | Material | Each | |
For 16 mm Max. Belt Wd. | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
69.85 | 28 | 8 | 1.625" | Finished | Split Tapered Style H | 17 | 17 | 71 | Cast | Magnesium-Phosphate-Coated Iron | 0000000 | 0000000 |