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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.
Keyway | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
Number of Teeth | For Shaft Dia. | OD | Overall Wd. | Hub Dia. | Wd. | Dp. | Material | Includes | Each | |
20 | 1" | 5.19" | 1 1/4" | 3 7/8" | 1/4" | 1/8" | Steel | Two Set Screws | 00000000 | 000000 |
20 | 1 1/8" | 5.19" | 1 1/4" | 3 7/8" | 1/4" | 1/8" | Steel | Two Set Screws | 00000000 | 00000 |
20 | 1 3/16" | 5.19" | 1 1/4" | 3 7/8" | 1/4" | 1/8" | Steel | Two Set Screws | 00000000 | 00000 |
20 | 1 1/4" | 5.19" | 1 1/4" | 3 7/8" | 1/4" | 1/8" | Steel | Two Set Screws | 00000000 | 00000 |
20 | 1 3/8" | 5.19" | 1 1/4" | 3 7/8" | 5/16" | 5/32" | Steel | Two Set Screws | 00000000 | 00000 |
20 | 1 7/16" | 5.19" | 1 1/4" | 3 7/8" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 00000 |
20 | 1 1/2" | 5.19" | 1 1/4" | 3 7/8" | 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 |
20 | 1 3/4" | 5.19" | 1 1/4" | 3 7/8" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 00000 |
20 | 1 15/16" | 5.19" | 1 1/4" | 3 7/8" | 1/2" | 1/4" | Steel | Two Set Screws | 0000000 | 00000 |
Machinable-Bore Sprockets for ANSI Roller Chain
For a custom fit on your shaft, these sprockets can be machined to your exact specifications. 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.
Number of Teeth | For Shaft Dia. | For Max. Shaft Dia. | OD | Overall Wd. | Hub Dia. | Material | Each | |
For ANSI 60 Roller Chain (3/4" Pitch) | ||||||||
---|---|---|---|---|---|---|---|---|
20 | 3/4" | 2 5/8" | 5.19" | 1 1/4" | 3 7/8" | Steel | 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 | |
20 | 1" | 5.19" | 1 1/4" | 3 7/8" | 1/4" | 1/8" | Steel | Two Set Screws | 00000000 | 000000 |
20 | 1 1/8" | 5.19" | 1 1/4" | 3 7/8" | 1/4" | 1/8" | Steel | Two Set Screws | 00000000 | 00000 |
20 | 1 3/16" | 5.19" | 1 1/4" | 3 7/8" | 1/4" | 1/8" | Steel | Two Set Screws | 00000000 | 00000 |
20 | 1 1/4" | 5.19" | 1 1/4" | 3 7/8" | 1/4" | 1/8" | Steel | Two Set Screws | 00000000 | 00000 |
20 | 1 3/8" | 5.19" | 1 1/4" | 3 7/8" | 5/16" | 5/32" | Steel | Two Set Screws | 00000000 | 00000 |
20 | 1 7/16" | 5.19" | 1 1/4" | 3 7/8" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 00000 |
20 | 1 1/2" | 5.19" | 1 1/4" | 3 7/8" | 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 |
20 | 1 3/4" | 5.19" | 1 1/4" | 3 7/8" | 3/8" | 3/16" | Steel | Two Set Screws | 00000000 | 00000 |
20 | 1 15/16" | 5.19" | 1 1/4" | 3 7/8" | 1/2" | 1/4" | Steel | Two Set Screws | 00000000 | 00000 |
Machinable-Bore Corrosion-Resistant Sprockets for ANSI Roller Chain
For a custom fit on your shaft, these sprockets can be machined to your exact specifications. They come machined to the shaft diameter size listed and are machinable up to the maximum shaft diameter size. Made of stainless steel, they withstand washdown conditions and harsh environments.
For technical drawings and 3-D models, click on a part number.
Number of Teeth | For Shaft Dia. | For Max. Shaft Dia. | OD | Overall Wd. | Hub Dia. | Material | Each | |
For ANSI 60 Roller Chain (3/4" Pitch) | ||||||||
---|---|---|---|---|---|---|---|---|
20 | 3/4" | 2 5/8" | 5.19" | 1 1/4" | 3 7/8" | 18-8 Stainless Steel | 00000000 | 0000000 |
Flat Sprockets for ANSI Roller Chain
Also known as A-plate and weld sprockets, these have a slim profile that fits in narrow spaces and are often welded directly to a shaft.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.
Number of Teeth | For Shaft Dia. | For Max. Shaft Dia. | OD | Overall Wd. | Material | Each | |
For ANSI 60 Roller Chain (3/4" Pitch) | |||||||
---|---|---|---|---|---|---|---|
20 | 3/4" | 3 61/64" | 5.19" | 15/32" | Steel | 0000000 | 000000 |
Sprockets for Double-Strand ANSI Roller Chain
These sprockets come machined to the shaft diameter size listed and are machinable up to the maximum shaft diameter size. All have hardened teeth for increased wear resistance and a long service life.
For technical drawings and 3-D models, click on a part number.
Number of Teeth | For Shaft Dia. | For Max. Shaft Dia. | OD | Overall Wd. | Hub Dia. | Material | Each | |
For ANSI 60-2 Roller Chain (3/4" Pitch) | ||||||||
---|---|---|---|---|---|---|---|---|
20 | 1" | 2 1/2" | 5.19" | 2 1/8" | 3 3/4" | Steel | 0000000 | 0000000 |
Quick-Disconnect (QD) Bushing-Bore Sprockets for ANSI Roller Chain
The same sprocket can be used with different shaft diameters; choose a compatible quick-disconnect bushing with the bore size you need.
For technical drawings and 3-D models, click on a part number.
Number of Teeth | For Bushing Style | OD | Overall Wd. | Hub Dia. | Material | Each | |
For ANSI 60 Roller Chain (3/4" Pitch) | |||||||
---|---|---|---|---|---|---|---|
20 | SDS | 5.19" | 3/4" | 3 3/16" | Steel | 00000000 | 000000 |
Split-Tapered Bushing-Bore Sprockets for ANSI Roller Chain
Since these sprockets grip bushings more tightly than taper-lock sprockets, they’re often used in high-torque applications. The same sprocket can be used with different shaft diameters; choose a compatible split-tapered bushing with the bore size you need.
Sprockets for P1- and Q1-Style bushings have a keyway that fits a matching key on the bushing.
For technical drawings and 3-D models, click on a part number.
Number of Teeth | For Bushing Style | OD | Overall Wd. | Hub Dia. | Material | Each | |
For ANSI 60 Roller Chain (3/4" Pitch) | |||||||
---|---|---|---|---|---|---|---|
20 | Q1 | 5.19" | 1 3/4" | 4 1/8" | Steel | 0000000 | 0000000 |
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.
For technical drawings and 3-D models, click on a part number.
Hub | |||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Gear Pitch | Speed Ratio | Number of Teeth | Pressure Angle | Gear Pitch Dia. | For Number of Thread Starts | OD | Face Wd. | Overall Wd. | For Shaft Dia. | Dia. | Wd. | Material | For Thread Direction | Teeth Heat Treatment | Teeth Fabrication | Each | |
Round Bore—Cast Iron | |||||||||||||||||
12 | 60:1 | 60 | 14 1/2° | 5" | 1 | 5.19" | 1/2" | 1.25" | 5/8" | 1.75" | 0.75" | Cast Iron | Right Hand | Not Hardened | Not Ground | 000000000 | 0000000 |