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Brand: Wych BearingsStandard: British StandardChain Pitch: 12.700mm (1/2")Type: DuplexBore Type: Taper BushNo. of Teeth: 21Chain Reference: 08B-2Taper Bush: 1610
42-21 Sprocket - 1/2" Pitch Duplex 21 Teeth - Taper Bush Ref 1610
Taper Bush Sprockets are pre machined and ready to accept a Taper Bush (sold separately).Taper Bushes are available with a range of bore sizes, both metric and imperial, complete with keyway. Ready to fit without the need for any machining.
42-21 dimension chart - all dimensions in mm unless indicated.
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