Transmissions
Chain Sprockets
Pilot Bore Sprockets
1/2inch Pitch (08B1, 08B2, 08B3) Pilot Bore Sprockets
08B1 - 1/2inch Simplex Chain Sprockets
Quick Code: BB-20219
4SR20 Pilot Bore Sprocket 08B1
![4SR20 Pilot Bore Sprocket 08B1](https://thumbnails.bearingboys.co.uk/4SR20_Pilot_Bore_Sprocket_08B1-prod-20219-1.jpg)
![](https://thumbnails.bearingboys.co.uk/4SR20_Pilot_Bore_Sprocket_08B1-prod-20219-1.jpg)
![](https://thumbnails.bearingboys.co.uk/08B1_-_1_2inch_Simplex_Chain_Sprockets_-cat-1780-cat2.jpg)
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Product Specification
Boss Dia
64mm
Number of Teeth
20
Outside Dia
85.8mm
Overall Length
28mm
Pilot Bore Size
12mm
Pitch
1/2inch
Reference
4SR20
Brand
Medway
Quick Order Code
BB-20219
Product Description
08B1-20 Simplex Chain Sprocket
![](https://www.bearingboys.co.uk/uploads/pilot bore simplex sprocket.png)