D40B68 Sprocket With Stock Bore filter_D667X This 5C240F Sheave uses a

This 5C240F Sheave uses a F QD bushing

This 60BS50 sprocket features a 1-3/16" finished bore including a key-way and two setscrews

Hub Diameter: 3"

What sets this 6219-2RS bearing apart from others is the ABEC 3 precision standard that this bearing is made to

35BS36 1" Finished Bore Sprocket Dimensions:

D40B68 Sprocket With Stock Bore filter_D667X This 5C240F Sheave uses aThis D40B68 sprocket is a durable, premium quality, and precision 68 tooth double sprocket that is manufactured out of high quality steel. This sprocket is manufactured for optimum performance, durability, and to strict quality control standards. Something else that is notable about this sprocket is that it fully meets all ANSI Standards, which insures proper contact between the #40 2 double roller chain and sprocket thus preventing premature wear or