About Roller Chain and Sprockets
More
Idler Sprockets for ANSI Roller Chain
Maintain constant tension on your drive with these sprockets that press against your chain to take up slack and reduce wear and vibration. They rotate freely on built-in bearings and are for use with roller chain tensioners. Bearings are double sealed to keep dirt out.
For technical drawings and 3-D models, click on a part number.
Bearing | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Number of Teeth | For Shaft Dia. | OD | Overall Wd. | Hub Dia. | Material | Type | Material | Each | |
For ANSI 25 Roller Chain (1/4" Pitch) | |||||||||
| 20 | 3/8" | 1.73" | 5/16" | 29/32" | Steel | Ball | Steel | 0000000 | 000000 |
For ANSI 35 Roller Chain (3/8" Pitch) | |||||||||
| 19 | 3/8" | 2.47" | 3/8" | 1 1/8" | Steel | Ball | Steel | 0000000 | 00000 |
| 19 | 1/2" | 2.47" | 3/8" | 1 1/8" | Steel | Ball | Steel | 0000000 | 00000 |
For ANSI 40 Roller Chain (1/2" Pitch) | |||||||||
| 18 | 1/2" | 3.14" | 7/16" | 1 3/8" | Steel | Ball | Steel | 0000000 | 00000 |
| 18 | 5/8" | 3.14" | 7/16" | 1 3/8" | Steel | Ball | Steel | 0000000 | 00000 |
For ANSI 41 Roller Chain (1/2" Pitch) | |||||||||
| 18 | 1/2" | 3.14" | 7/16" | 1 3/8" | Steel | Ball | Steel | 0000000 | 00000 |
| 18 | 5/8" | 3.14" | 7/16" | 1 3/8" | Steel | Ball | Steel | 0000000 | 00000 |
For ANSI 50 Roller Chain (5/8" Pitch) | |||||||||
| 17 | 1/2" | 3.72" | 7/16" | 1 3/8" | Steel | Ball | Steel | 0000000 | 00000 |
| 17 | 5/8" | 3.72" | 7/16" | 1 3/8" | Steel | Ball | Steel | 0000000 | 00000 |
For ANSI 60 Roller Chain (3/4" Pitch) | |||||||||
| 15 | 1/2" | 3.98" | 7/16" | 1 3/8" | Steel | Ball | Steel | 0000000 | 00000 |
| 15 | 5/8" | 3.98" | 7/16" | 1 3/8" | Steel | Ball | Steel | 0000000 | 00000 |
For ANSI 80 Roller Chain (1" Pitch) | |||||||||
| 12 | 3/4" | 4.33" | 39/64" | 1 25/32" | Steel | Ball | Steel | 0000000 | 00000 |
For ANSI 100 Roller Chain (1 1/4" Pitch) | |||||||||
| 11 | 3/4" | 5.01" | 11/16" | 1 25/32" | Steel | Ball | Steel | 00000000 | 000000 |
For ANSI 120 Roller Chain (1 1/2" Pitch) | |||||||||
| 10 | 1" | 5.52" | 1" | 2" | Steel | Ball | Steel | 00000000 | 000000 |
Wear-Resistant Idler Sprockets for ANSI Roller Chain
Hardened teeth give these steel sprockets increased wear resistance for a long service life. Designed to rotate freely on built-in bearings, idler sprockets maintain constant tension on your drive by pressing against your chain to take up slack and reduce wear and vibration. They are for use with roller chain tensioners.
Ball bearings are double sealed to keep dirt out. Sleeve bearings are self-lubricating.
For technical drawings and 3-D models, click on a part number.
Bearing | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Number of Teeth | For Shaft Dia. | OD | Overall Wd. | Hub Dia. | Material | Type | Material | Each | |
For ANSI 25 Roller Chain (1/4" Pitch) | |||||||||
| 20 | 3/8" | 1.73" | 11/32" | 7/8" | Steel | Ball | Steel | 00000000 | 000000 |
For ANSI 35 Roller Chain (3/8" Pitch) | |||||||||
| 19 | 3/8" | 2.47" | 11/32" | 7/8" | Steel | Ball | Steel | 00000000 | 00000 |
| 19 | 1/2" | 2.47" | 23/32" | 1 9/16" | Steel | Ball | Steel | 000000 | 00000 |
| 20 | 1/2" | 2.59" | 63/64" | 1 1/2" | Steel | Sleeve | Bronze | 0000000 | 00000 |
| 20 | 5/8" | 2.59" | 23/32" | 1 9/16" | Steel | Ball | Steel | 0000000 | 00000 |
For ANSI 40 Roller Chain (1/2" Pitch) | |||||||||
| 17 | 5/8" | 2.98" | 23/32" | 1 9/16" | Steel | Ball | Steel | 0000000 | 00000 |
| 18 | 1/2" | 3.14" | 7/16" | 1 3/8" | Steel | Ball | Steel | 00000000 | 00000 |
| 18 | 5/8" | 3.14" | 23/32" | 1 9/16" | Steel | Ball | Steel | 00000000 | 00000 |
| 25 | 5/8" | 4.26" | 23/32" | 1 9/16" | Steel | Ball | Steel | 00000000 | 00000 |
| 35 | 5/8" | 5.86" | 23/32" | 1 9/16" | Steel | Ball | Steel | 00000000 | 00000 |
| 48 | 5/8" | 7.93" | 23/32" | 1 9/16" | Steel | Ball | Steel | 00000000 | 00000 |
For ANSI 40 and 41 Roller Chain (1/2" Pitch) | |||||||||
| 15 | 1/2" | 2.65" | 63/64" | 1 1/2" | Steel | Sleeve | Bronze | 0000000 | 00000 |
For ANSI 41 Roller Chain (1/2" Pitch) | |||||||||
| 18 | 1/2" | 3.14" | 23/32" | 1 9/16" | Steel | Ball | Steel | 000000 | 00000 |
| 18 | 5/8" | 3.14" | 23/32" | 1 9/16" | Steel | Ball | Steel | 000000 | 00000 |
For ANSI 50 Roller Chain (5/8" Pitch) | |||||||||
| 15 | 1/2" | 3.32" | 63/64" | 1 1/2" | Steel | Sleeve | Bronze | 0000000 | 00000 |
| 15 | 5/8" | 3.32" | 23/32" | 1 9/16" | Steel | Ball | Steel | 0000000 | 00000 |
| 17 | 1/2" | 3.72" | 7/16" | 1 3/8" | Steel | Ball | Steel | 00000000 | 00000 |
| 17 | 5/8" | 3.72" | 23/32" | 1 9/16" | Steel | Ball | Steel | 00000000 | 00000 |
| 25 | 3/4" | 5.32" | 39/64" | 1 3/4" | Steel | Ball | Steel | 00000000 | 00000 |
| 39 | 3/4" | 8.12" | 39/64" | 1 3/4" | Steel | Ball | Steel | 00000000 | 000000 |
For ANSI 60 Roller Chain (3/4" Pitch) | |||||||||
| 12 | 5/8" | 3.25" | 23/32" | 1 9/16" | Steel | Ball | Steel | 00000000 | 00000 |
| 13 | 5/8" | 3.49" | 23/32" | 1 9/16" | Steel | Ball | Steel | 0000000 | 00000 |
| 14 | 1/2" | 3.74" | 63/64" | 1 1/2" | Steel | Sleeve | Bronze | 0000000 | 00000 |
| 15 | 5/8" | 3.98" | 23/32" | 1 9/16" | Steel | Ball | Steel | 00000000 | 00000 |
| 17 | 5/8" | 4.46" | 23/32" | 1 9/16" | Steel | Ball | Steel | 00000000 | 000000 |
For ANSI 80 Roller Chain (1" Pitch) | |||||||||
| 12 | 3/4" | 4.33" | 39/64" | 1 3/4" | Steel | Ball | Steel | 000000 | 000000 |
Lightweight Idler Sprockets for ANSI Roller Chain
Made of nylon, these sprockets are lightweight, quiet, and corrosion resistant. Designed to rotate freely on built-in bearings, idler sprockets maintain constant tension on your drive by pressing against your chain to take up slack and reduce wear and vibration. They are for use with roller chain tensioners. Bearings are double sealed to keep dirt out.
For technical drawings and 3-D models, click on a part number.
Bearing | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Number of Teeth | For Shaft Dia. | OD | Overall Wd. | Hub Dia. | Material | Type | Material | Each | |
For ANSI 40 Roller Chain (1/2" Pitch) | |||||||||
| 17 | 5/8" | 3" | 43/64" | 1 9/16" | Nylon Plastic | Ball | Steel | 0000000 | 000000 |
| 17 | 3/4" | 3" | 43/64" | 1 9/16" | Nylon Plastic | Ball | Steel | 0000000 | 00000 |
For ANSI 50 Roller Chain (5/8" Pitch) | |||||||||
| 15 | 5/8" | 3.34" | 43/64" | 1 9/16" | Nylon Plastic | Ball | Steel | 0000000 | 00000 |
| 15 | 3/4" | 3.34" | 43/64" | 1 9/16" | Nylon Plastic | Ball | Steel | 0000000 | 00000 |
For ANSI 60 Roller Chain (3/4" Pitch) | |||||||||
| 13 | 5/8" | 3.5" | 43/64" | 1 9/16" | Nylon Plastic | Ball | Steel | 0000000 | 00000 |
| 13 | 3/4" | 3.5" | 43/64" | 1 9/16" | Nylon Plastic | Ball | Steel | 0000000 | 00000 |
For ANSI 80 Roller Chain (1" Pitch) | |||||||||
| 12 | 5/8" | 4.4" | 43/64" | 1 9/16" | Nylon Plastic | Ball | Steel | 0000000 | 00000 |
Wear-Resistant Wide-Hub Idler Sprockets for ANSI Roller Chain
Hardened teeth give these steel sprockets increased wear resistance for a long service life. The wide hub provides stability under heavy loads. Designed to rotate freely on built-in bearings, idler sprockets maintain constant tension on your drive by pressing against your chain to take up slack and reduce wear and vibration. They are for use with roller chain tensioners.
For technical drawings and 3-D models, click on a part number.
Bearing | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Number of Teeth | For Shaft Dia. | OD | Overall Wd. | Hub Dia. | Material | Type | Material | Each | |
For ANSI 25 Roller Chain (1/4" Pitch) | |||||||||
| 19 | 1/2" | 1.65" | 3/4" | 1 7/32" | Steel | Needle Roller | Bronze | 0000000 | 000000 |
For ANSI 35 Roller Chain (3/8" Pitch) | |||||||||
| 13 | 1/2" | 1.75" | 3/4" | 1 3/16" | Steel | Needle Roller | Bronze | 0000000 | 000000 |
| 19 | 1" | 2.47" | 1" | 1 27/32" | Steel | Needle Roller | Bronze | 0000000 | 000000 |
For ANSI 40 Roller Chain (1/2" Pitch) | |||||||||
| 19 | 1" | 3.29" | 1" | 2 1/2" | Steel | Needle Roller | Bronze | 0000000 | 000000 |
For ANSI 41 Roller Chain (1/2" Pitch) | |||||||||
| 19 | 1" | 3.29" | 1" | 2 1/2" | Steel | Needle Roller | Bronze | 0000000 | 000000 |
For ANSI 50 Roller Chain (5/8" Pitch) | |||||||||
| 17 | 1" | 3.72" | 1" | 2 1/4" | Steel | Needle Roller | Bronze | 0000000 | 000000 |
For ANSI 60 Roller Chain (3/4" Pitch) | |||||||||
| 17 | 1" | 4.46" | 1" | 3" | Steel | Needle Roller | Bronze | 0000000 | 000000 |
For ANSI 80 Roller Chain (1" Pitch) | |||||||||
| 13 | 1" | 4.66" | 1 1/4" | 2 5/8" | Steel | Needle Roller | Bronze | 0000000 | 000000 |
For ANSI 100 Roller Chain (1 1/4" Pitch) | |||||||||
| 11 | 1 1/2" | 5.01" | 1 7/8" | 3 9/16" | Steel | Needle Roller | Bronze | 00000000 | 000000 |
For ANSI 120 Roller Chain (1 1/2" Pitch) | |||||||||
| 11 | 1 1/2" | 6.01" | 2 1/8" | 3 9/16" | Steel | Needle Roller | Bronze | 00000000 | 000000 |
For ANSI 140 Roller Chain (1 3/4" Pitch) | |||||||||
| 11 | 1 1/2" | 7.01" | 2 1/4" | 4 1/4" | Steel | Needle Roller | Bronze | 00000000 | 000000 |
For ANSI 160 Roller Chain (2" Pitch) | |||||||||
| 9 | 1 1/2" | 6.7" | 2 1/4" | 3 5/8" | Steel | Needle Roller | Bronze | 00000000 | 000000 |
Wide-Hub Idler Sprockets for ANSI Roller Chain
A wide hub provides these sprockets with stability under heavy loads. Designed to rotate freely on built-in bearings, idler sprockets maintain constant tension on your drive by pressing against your chain to take up slack and reduce wear and vibration. They are for use with roller chain tensioners. Bearings are self-lubricating.
For technical drawings and 3-D models, click on a part number.
Bearing | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Number of Teeth | For Shaft Dia. | OD | Overall Wd. | Hub Dia. | Material | Type | Material | Each | |
For ANSI 35 Roller Chain (3/8" Pitch) | |||||||||
| 15 | 1/2" | 1.99" | 15/16" | 1 23/64" | Steel | Sleeve | Bronze | 0000000 | 000000 |
| 21 | 7/8" | 2.71" | 1 1/16" | 2" | Steel | Sleeve | Bronze | 0000000 | 00000 |
For ANSI 40 Roller Chain (1/2" Pitch) | |||||||||
| 13 | 1/2" | 2.33" | 15/16" | 1 9/16" | Steel | Sleeve | Bronze | 0000000 | 00000 |
| 19 | 7/8" | 3.29" | 1 1/16" | 2 1/2" | Steel | Sleeve | Bronze | 0000000 | 00000 |
For ANSI 50 Roller Chain (5/8" Pitch) | |||||||||
| 13 | 1/2" | 2.91" | 15/16" | 1 7/8" | Steel | Sleeve | Bronze | 0000000 | 00000 |
| 17 | 7/8" | 3.72" | 1 1/16" | 2 5/8" | Steel | Sleeve | Bronze | 0000000 | 00000 |
For ANSI 60 Roller Chain (3/4" Pitch) | |||||||||
| 15 | 7/8" | 3.98" | 1 1/16" | 2 5/8" | Steel | Sleeve | Bronze | 0000000 | 000000 |
| 17 | 1 1/8" | 4.46" | 1 9/16" | 3 1/4" | Steel | Sleeve | Bronze | 0000000 | 000000 |
For ANSI 80 Roller Chain (1" Pitch) | |||||||||
| 15 | 1 1/8" | 5.3" | 1 9/16" | 3 1/2" | Steel | Sleeve | Bronze | 0000000 | 000000 |
Idler Sprockets for Metric Roller Chain
Keep constant tension on your drive with these sprockets that press against your metric ISO roller chain to take up slack and reduce wear and vibration. They rotate freely on built-in ball bearings, which are double sealed to keep dirt out, and are for use with roller chain tensioners. All come with a finished bore that fits directly onto your shaft—no need for machining. These sprockets meet ISO 606, which is an international standard for dimensions and materials.
For technical drawings and 3-D models, click on a part number.
Bearing | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Number of Teeth | For Shaft Dia., mm | OD, mm | Overall Wd., mm | Hub Dia., mm | Material | Type | Material | Specifications Met | Each | |
For ISO 05B Roller Chain (8 mm Pitch) | ||||||||||
| 23 | 16 | 62 | 18 | 40 | Steel | Ball | Steel | ISO 606 | 0000000 | 000000 |
For ISO 06B Roller Chain (9.53 mm Pitch) | ||||||||||
| 21 | 16 | 68 | 18 | 40 | Steel | Ball | Steel | ISO 606 | 0000000 | 00000 |
For ISO 08B Roller Chain (12.7 mm Pitch) | ||||||||||
| 16 | 16 | 69.5 | 18 | 40 | Steel | Ball | Steel | ISO 606 | 0000000 | 00000 |
| 18 | 16 | 78 | 18 | 40 | Steel | Ball | Steel | ISO 606 | 0000000 | 00000 |
For ISO 10B Roller Chain (15.88 mm Pitch) | ||||||||||
| 15 | 16 | 93 | 18 | 40 | Steel | Ball | Steel | ISO 606 | 0000000 | 00000 |
| 17 | 16 | 93 | 18 | 40 | Steel | Ball | Steel | ISO 606 | 0000000 | 00000 |
For ISO 12B Roller Chain (19.05 mm Pitch) | ||||||||||
| 15 | 16 | 100 | 18 | 40 | Steel | Ball | Steel | ISO 606 | 0000000 | 00000 |
For ISO 16B Roller Chain (25.4 mm Pitch) | ||||||||||
| 12 | 20 | 109 | 18 | 47 | Steel | Ball | Steel | ISO 606 | 000000 | 00000 |
Idler Sprockets for Double-Strand ANSI Roller Chain
Maintain constant tension on your drive with these sprockets that press against your chain to take up slack and reduce wear and vibration. They rotate freely on built-in bearings and are for use with roller chain tensioners. Bearings are double sealed to keep dirt out.
For technical drawings and 3-D models, click on a part number.
Bearing | ||||||||
|---|---|---|---|---|---|---|---|---|
| Number of Teeth | For Shaft Dia. | OD | Overall Wd. | Material | Type | Material | Each | |
For ANSI 35-2 Roller Chain (3/8" Pitch) | ||||||||
| 19 | 1/2" | 2.47" | 9/16" | Steel | Ball | Steel | 000000 | 0000000 |
| 19 | 5/8" | 2.47" | 9/16" | Steel | Ball | Steel | 000000 | 000000 |
For ANSI 40-2 Roller Chain (1/2" Pitch) | ||||||||
| 18 | 1/2" | 3.14" | 27/32" | Steel | Ball | Steel | 000000 | 000000 |
| 18 | 5/8" | 3.14" | 27/32" | Steel | Ball | Steel | 000000 | 000000 |
For ANSI 50-2 Roller Chain (5/8" Pitch) | ||||||||
| 17 | 1/2" | 3.72" | 1 3/64" | Steel | Ball | Steel | 000000 | 000000 |
| 17 | 5/8" | 3.72" | 1 3/64" | Steel | Ball | Steel | 000000 | 000000 |
For ANSI 60-2 Roller Chain (3/4" Pitch) | ||||||||
| 15 | 1/2" | 3.98" | 1 11/32" | Steel | Ball | Steel | 000000 | 000000 |
| 15 | 5/8" | 3.98" | 1 11/32" | Steel | Ball | Steel | 000000 | 000000 |
For ANSI 80-2 Roller Chain (1" Pitch) | ||||||||
| 12 | 3/4" | 4.33" | 1 23/32" | Steel | Ball | Steel | 000000 | 000000 |