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4TR21 | Challenge BS Sprocket
£7.70
Description
This 21 teeth 1/2″ sprocket with a Pilot Bore of 20 mm is manufactured by Challenge in C45 steel. . This Triplex sprocket fits chain 1/2 x 5/16 and has a part number 4TR21 and is available from stock. If you require additional information please contact Sales on 01952 676926.
Additional information
| Hub Diameter d | 70 |
|---|---|
| Manufacturer | Challenge |
| Material | C45 steel. |
| Pilot Bore Diameter D | 20 |
| Pitch | 1/2" |
| Teeth | 21 |
