About Gears
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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.
Number of Teeth | For Shaft Dia. | OD | Overall Wd. | Hub Dia. | Material | Includes | Each | |
7 | 3/8" | 1.34" | 7/8" | 3/4" | Steel | Two Set Screws | 0000000 | 000000 |
Lightweight Sprockets for ANSI Roller Chain
Made of nylon, these sprockets are lightweight, quiet, and corrosion resistant. 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.
Sprockets for Miniature Roller Chain
Often used in electronic equipment, instrumentation devices, printers, and other compact machinery, these sprockets are made for use with our miniature roller chain.
Stainless steel sprockets are corrosion resistant for use in harsh environments. Mount them onto your shaft and secure with a set screw.
For technical drawings and 3-D models, click on a part number.
Number of Teeth | For Shaft Dia. | OD | Overall Wd. | Hub Dia. | Material | Includes | Each | |
0.1475" Pitch | ||||||||
---|---|---|---|---|---|---|---|---|
20 | 3/16" | 0.995" | 13/32" | 3/4" | 303 Stainless Steel | One Set Screw | 0000000 | 000000 |
24 | 1/4" | 1.182" | 13/32" | 3/4" | 303 Stainless Steel | One Set Screw | 0000000 | 00000 |
30 | 1/4" | 1.463" | 13/32" | 3/4" | 303 Stainless Steel | One Set Screw | 0000000 | 00000 |
36 | 1/4" | 1.744" | 13/32" | 3/4" | 303 Stainless Steel | One Set Screw | 0000000 | 00000 |
40 | 1/4" | 1.932" | 13/32" | 3/4" | 303 Stainless Steel | One Set Screw | 0000000 | 00000 |
48 | 1/4" | 2.307" | 13/32" | 3/4" | 303 Stainless Steel | One Set Screw | 0000000 | 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. | |||||||||||||||
Inch | |||||||||||||||
1.13" | 14 | 0.200" | 1/4" | Finished | 0.5" | 0.625" | 0.813" | 0.891" | 2 | Molded | Acetal | Aluminum | 0.75" | 00000000 | 000000 |
1.19" | 15 | 0.200" | 1/4" | Finished | 0.5" | 0.625" | 0.813" | 0.955" | 2 | Molded | Acetal | Aluminum | 0.75" | 00000000 | 00000 |
1.25" | 16 | 0.200" | 1/4" | Finished | 0.5" | 0.625" | 0.813" | 1.019" | 2 | Molded | Acetal | Aluminum | 0.75" | 00000000 | 00000 |
1.38" | 18 | 0.200" | 1/4" | Finished | 0.5" | 0.625" | 0.813" | 1.146" | 2 | Molded | Acetal | Aluminum | 0.75" | 00000000 | 00000 |
XL Series Timing Belt Pulleys
Pulleys 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 | Number of Teeth | Pitch | For Shaft Dia. | Bore Type | Inside Wd. | Outside Wd. | Overall Wd. | Pitch Dia. | Number of Flanges | Fabrication | Hub Dia. | Each | |
For 3/8" Max. Belt Wd. | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1.188" | 15 | 0.200" | 3/8" | Finished | 0.43" | 0.563" | 0.812" | 0.955" | 2 | Machined | 0.75" | 00000000 | 000000 |
Metal Gears and Gear Racks—14 1/2° Pressure Angle
A former industry standard, 14½° pressure angle gears are often found on older machinery. Made of carbon steel, they have high strength and are better than plastic gears and gear racks for high-load, high-speed, and heavy duty applications.
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.
For components to mesh correctly, they must have the same pressure angle and pitch.
Gears with hardened teeth are more wear resistant than gears with teeth that are not hardened. Gears with teeth that are not hardened can be hardened to fit your application. Hardening a gear's teeth increases its wear resistance.
For technical drawings and 3-D models, click on a part number.
Hub | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Gear Pitch | Number of Teeth | Gear Pitch Dia. | OD | Face Wd. | Overall Wd. | For Shaft Dia. | Material | Teeth Heat Treatment | Dia. | Wd. | Set Screw Thread Size | Each | |
Round Bore | |||||||||||||
24 | 21 | 7/8" | 0.96" | 1/4" | 0.563" | 3/8" | 1144 Carbon Steel | Not Hardened | 0.75" | 0.313" | __ | 0000000 | 000000 |
12 | 12 | 1" | 1.17" | 3/4" | 1.25" | 1/2" | 1144 Carbon Steel | Hardened | 0.75" | 0.5" | __ | 00000000 | 00000 |
12 | 12 | 1" | 1.17" | 3/4" | 1.25" | 1/2" | 1144 Carbon Steel | Not Hardened | 0.75" | 0.5" | __ | 0000000 | 00000 |
Round Bore with Set Screw | |||||||||||||
24 | 21 | 7/8" | 0.96" | 1/4" | 0.563" | 3/8" | 1144 Carbon Steel | Not Hardened | 0.75" | 0.313" | 10-24 | 0000000 | 00000 |
12 | 12 | 1" | 1.17" | 3/4" | 1.25" | 1/2" | 1144 Carbon Steel | Not Hardened | 0.75" | 0.5" | 10-24 | 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. Some carbon steel gears have hardened teeth for even better wear resistance. Gears with teeth that are not hardened can be hardened to fit your application.
For technical drawings and 3-D models, click on a part number.
Metal Miter Gears
With straight, conically shaped teeth and a 1:1 speed ratio, miter gears connect two shafts at an angle without changing shaft speed or torque. They're more efficient than spiral miter gears because they create less friction.
For two gears to mesh correctly, they must have the same pressure angle, shaft angle, pitch/module, and number of teeth.
Carbon steel gears have hard, strong, and wear-resistant teeth. They’re best for heavy duty and high-torque applications, such as lifting equipment. However, these gears will rust when exposed to moisture or corrosive chemicals. Some gears have hardened teeth for additional wear resistance; gears with teeth that are not hardened can be hardened to fit your application.
For technical drawings and 3-D models, click on a part number.
Hub | Keyway | ||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Gear Pitch | Number of Teeth | For Shaft Angle | Pressure Angle | Gear Pitch Dia. | OD | Face Wd. | Overall Wd. | For Shaft Dia. | Mounting Distance | Teeth Heat Treatment | Dia. | Wd. | Wd. | Dp. | Set Screw Thread Size | Each | |
Round Bore—1144 Carbon Steel | |||||||||||||||||
20 | 20 | 90° | 20° | 1" | 1.07" | 0.23" | 0.813" | 3/8" | 1.125" | Not Hardened | 0.75" | 0.5" | __ | __ | __ | 0000000 | 000000 |
16 | 16 | 90° | 20° | 1" | 1.09" | 0.22" | 0.75" | 3/8" | 1.063" | Not Hardened | 0.75" | 0.438" | __ | __ | __ | 0000000 | 00000 |
Keyed Bore with Set Screw—1144 Carbon Steel | |||||||||||||||||
16 | 16 | 90° | 20° | 1" | 1.09" | 0.22" | 0.75" | 3/8" | 1.063" | Hardened | 0.75" | 0.438" | 0.094" | 0.047" | 10-24 | 0000000 | 00000 |
High-Power Metal Miter Gears
Also known as spiral miter gears, these gears have curved teeth that stay in contact longer than straight teeth so they handle heavier loads at higher speeds. They run quieter than standard miter gears because the teeth gradually engage. Use them to transmit motion at a right angle while maintaining shaft speed and torque. Gears are carbon steel for strength. Teeth are hardened for wear resistance.
Gears must be identical in order to mesh correctly; they're sold as a pair.
For technical drawings and 3-D models, click on a part number.
Hub | Keyway | |||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Gear Pitch | Number of Teeth | Pressure Angle | Gear Pitch Dia. | OD | Face Wd. | Overall Wd. | For Shaft Dia. | Mounting Distance | Material | Dia. | Wd. | Wd. | Dp. | Set Screw Thread Size | Pair | |
Keyed Bore with Set Screw | ||||||||||||||||
18 | 18 | 20° | 1" | 1.07" | 0.22" | 0.74" | 3/8" | 1.062" | 1117 Carbon Steel | 0.75" | 0.44" | 0.094" | 0.047" | 10-32 | 000000 | 0000000 |
Plastic Gears and Gear Racks—14 1/2° Pressure Angle
A former industry standard, 14½° pressure angle gears are often found on older machinery. Made of plastic, they run quieter than metal gears and have good corrosion and chemical resistance. They’re 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.
For components to mesh correctly, they must have the same pressure angle and pitch.
For technical drawings and 3-D models, click on a part number.
Round/Machinable
Bore
Hub | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Gear Pitch | Number of Teeth | Gear Pitch Dia. | OD | Face Wd. | Overall Wd. | For Shaft Dia. | Material | Fabrication | Color | Dia. | Wd. | Each | |
Round Bore | |||||||||||||
16 | 36 | 2 1/4" | 2.38" | 5/16" | 0.774" | 3/8" | Nylon Plastic | Molded | White | 0.75" | 0.375" | 00000000 | 000000 |
Plastic Miter Gears
Connect two shafts at a right angle without changing shaft speed or torque. Made of plastic, these gears run quieter than metal gears and have good corrosion and chemical resistance.
For two gears to mesh correctly, they must have the same pressure angle, pitch/module, and number of teeth.
Nylon gears are self-lubricating, so they’re often used in food machinery. However, they’re not approved for direct contact with food or chemicals that will come into contact with food.
For technical drawings and 3-D models, click on a part number.
Hub | |||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Gear Pitch | Number of Teeth | Pressure Angle | Gear Pitch Dia. | OD | Face Wd. | Overall Wd. | For Shaft Dia. | Mounting Distance | Material | Fabrication | Color | Dia. | Wd. | Each | |
Round Bore | |||||||||||||||
16 | 16 | 20° | 1" | 1.09" | 0.22" | 0.75" | 3/8" | 1.063" | Nylon Plastic | Molded | White | 0.75" | 0.438" | 0000000 | 000000 |