40BS50 Sprocket With 3/4" Finished Bore 08B-4 Metric Roller Chain This 6215-ZZ ball bearing is

This 6215-ZZ ball bearing is a high-precision premium quality deep groove shielded 75x130x25 ball bearing made to ABEC 3 precision standards from AXIS

Roller Diameter (D1): 12

This 35BS70 sprocket features a 3/4" finished bore including a key-way and two setscrews

Bearing Insert: HC 206-17

40BS50 Sprocket With 3/4" Finished Bore 08B-4 Metric Roller Chain This 6215-ZZ ball bearing isThis 40BS50 sprocket features a 3 4" finished bore including a key way and two setscrews. It is a durable, high quality, and precision sprocket that fully meets all ANSI Standards which insures proper contact between the #40 roller chain and sprocket thus preventing premature wear or breakage. This sprocket is also black oxide coated which increases resistance to the environment and will prevent early rust build up. We also offer stock bore sprockets,