40BS55 High-Performance Sprocket 1-1/8" UCFX00 Medium-Duty Four Bolt Flange Bearings UC211 bearing is a normal-duty

UC211 bearing is a normal-duty ball bearing insert made to C3 precision standards and utilizes set screws for securing a 55mm shaft

Something that sets this 2040B17 sprocket apart from others is that it is Black Oxide Finished

120R35 sprockets are made to accept a R2 size taper bushing which we also stock with a wide range of bore sizes

2AK61 Pulley 1" Dimensions

Dimension (A): 190

40BS55 High-Performance Sprocket 1-1/8" UCFX00 Medium-Duty Four Bolt Flange Bearings UC211 bearing is a normal-dutyThis 40BS55 sprocket features a 1 1 8" 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