40BS51 Sprocket With 1" Finished Bore 120B13 Sprockets This 1TB40 Pulley uses a

This 1TB40 Pulley uses a P1-Series Bushing

2TB54 Pulley Dimensions

Dimension (G): 21

This 5314 Bearing is a high-precision premium double-row angular contact ball bearing made to ABEC 3 precision standards from AXIS

40BS51 Sprocket With 1" Finished Bore 120B13 Sprockets This 1TB40 Pulley uses aThis 40BS51 sprocket features a 1" 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,