40BS52 High-Performance Sprocket 1-1/4" 40B23 Sprockets This 40BS20 sprocket featured a

This 40BS20 sprocket featured a 1-3/16" finished bore with a key-way and two set screws

Dimension (L): 1-1/2"

200M22 Sprocket Dimensions

Hub Diameter: 2-5/64"

40BS40 1" Finished Bore Sprocket Dimensions:

40BS52 High-Performance Sprocket 1-1/4" 40B23 Sprockets This 40BS20 sprocket featured aThis 40BS52 sprocket features a 1 1 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