Transmissions
Chain Sprockets
Pilot Bore Sprockets
3/4inch Pitch (12B1, 12B2, 12B3) Pilot Bore Sprockets
12B1 - 3/4inch Simplex Chain Sprockets
Quick Code: BB-20315
6SR57 Pilot Bore Sprocket 12B1
![6SR57 Pilot Bore Sprocket 12B1](https://thumbnails.bearingboys.co.uk/12B1_-_3_4inch_Simplex_Chain_Sprockets-cat-1782-cat.jpg)
![](https://thumbnails.bearingboys.co.uk/12B1_-_3_4inch_Simplex_Chain_Sprockets-cat-1782-cat.jpg)
![](https://thumbnails.bearingboys.co.uk/12B1_-_3_4inch_Simplex_Chain_Sprockets-cat-1782-cat2.jpg)
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Product Specification
Boss Dia
110mm
Number of Teeth
57
Outside Dia
355.4mm
Overall Length
56mm
Pitch
3/4inch
Reference
6SR57
Brand
Medway
Quick Order Code
BB-20315
Product Description
12B1 British Standard Pilot Bore Sprocket
![](https://www.bearingboys.co.uk/uploads/pilot bore simplex sprocket.png)