Clear All
Bore Type Bore Type |
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 | Finished |
System of Measurement System of Measurement |
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For Roller Chain Strand Type For Roller Chain Strand Type |
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 | Single |
Bearing Type Bearing Type |
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 | Ball |
Sprocket Type Sprocket Type |
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For Shaft Type For Shaft Type |
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 | Round |
Bearing Material Bearing Material |
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Shaft Mount Type Shaft Mount Type |
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Material Material |
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Roller Chain Standard Roller Chain Standard |
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Specifications Met Specifications Met |
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Bearing Seal Type Bearing Seal Type |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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About Roller Chain and Sprockets
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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 081B Roller Chain (12.7 mm Pitch) | ||||||||||
| 18 | 16 | 78.9 | 18 | 40 | Steel | Ball | Steel | ISO 606 | 0000000 | 00000 |
For ISO 083B Roller Chain (12.7 mm Pitch) | ||||||||||
| 16 | 16 | 70.9 | 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 |
For ISO 20B Roller Chain (31.75 mm Pitch) | ||||||||||
| 13 | 25 | 148 | 25 | 52 | Steel | Ball | Steel | ISO 606 | 0000000 | 000000 |