10B39 sprockets with a stock bore comes with the standard 20 millimeter inside diameter hole with no key-way or set screws and can be easily machine bored to custom sizes
Dimension (C): 3-3/16"
083 Roller Chain Dimensions
the 10B A2 attachment has a bent tab on one side with two holes for mounting
We also offer 100C96 sprockets with finished bore configurations right off the shelf from stock
1210 Taper Lock Bushing X 11/16" Bore Bushing Size 10B39 sprockets with a stockThis 1210 taper lock bushing is a high quality, durable, and dependable product that has been precisely manufactured to out last and out perform the competition. 1210 taper lock bushings are used in a wide range of applications including; belt pulleys, sprockets, drum pulleys, drive pulleys, tail pulleys, sheaves, and gears, which are items that we also offer! Additionally this bushing features a 11 16" bore with a standard keyway, for more