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Brand: Wych BearingsStandard: British StandardChain Pitch: 9.525mm (3/8")Type: SimplexBore Type: Pilot BoreNo. of Teeth: 21Chain Reference: 06B-1
3SR21 Sprocket - Pilot Bore 3/8" Pitch Simplex 21 Teeth
Pilot Bore Sprockets are supplied with a small pilot bore ready for you to machine to suit your requirements. Produced from either C45 steel or GG22 close grain cast iron dependent upon the sprocket style and design.
3SR21 dimension chart - all dimensions in mm unless indicated.
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