40BS52 Sprocket With 3/4" Finished Bore 2525 Taper Lock Bushings This 40BS45 sprocket features a

This 40BS45 sprocket features a 1-1/4" finished bore including a key-way and two setscrews

UCTB207-20 Bearing Dimensions

Dimension (dk): 123

For more information or to get pricing and availability on a 2AK25 Pulley with 5/8" bore

40BS52 Sprocket With 3/4" Finished Bore 2525 Taper Lock Bushings This 40BS45 sprocket features aThis 40BS52 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,