Transmissions
Chain Sprockets
Pilot Bore Sprockets
3/4inch Pitch (12B1, 12B2, 12B3) Pilot Bore Sprockets
12B2 - 3/4inch Duplex Chain Sprocket
Quick Code: BB-20664
6DR57 Pilot Bore Chain Sprocket 12B2
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Product Specification
Boss Dia
136mm
Number of Teeth
57
Outside Dia
355.4mm
Overall Length
62mm
Pitch
3/4inch
Reference
6DR57
Brand
Medway
Quick Order Code
BB-20664
Product Description
12B2 British standard roller chain sprocket
![](https://www.bearingboys.co.uk/uploads/pilot bore duplex sprocket.png)