Transmissions
Chain Sprockets
Pilot Bore Sprockets
1/2inch Pitch (08B1, 08B2, 08B3) Pilot Bore Sprockets
08B2 - 1/2inch Duplex Chain Sprockets
Quick Code: BB-20566
4DR21 Pilot Bore Chain Sprocket 08B2
![4DR21 Pilot Bore Chain Sprocket 08B2](https://thumbnails.bearingboys.co.uk/08B2_-_1_2inch_Duplex_Chain_Sprockets-cat-1789-cat.jpg)
![](https://thumbnails.bearingboys.co.uk/08B2_-_1_2inch_Duplex_Chain_Sprockets-cat-1789-cat.jpg)
![](https://thumbnails.bearingboys.co.uk/08B2_-_1_2inch_Duplex_Chain_Sprockets-cat-1789-cat2.jpg)
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Product Specification
Boss Dia
70mm
Number of Teeth
21
Outside Dia
89.7mm
Overall Length
40mm
Pilot Bore Size
16mm
Pitch
1/2inch
Reference
4DR21
Brand
Medway
Quick Order Code
BB-20566
Product Description
08B2-21 Duplex Chain Sprocket
![](https://www.bearingboys.co.uk/uploads/pilot bore duplex sprocket.png)