40BS28 High-Performance Sprocket 1-1/4" 3V Double-Groove QD Bushed Sheaves What sets this 5215-2RS bearing

What sets this 5215-2RS bearing apart from others is the ABEC 3 precision standard that this bearing is made to

Part #: UCHA207-20

120A25 sprockets with a stock bore comes with a 1-1/4" inside diameter plain hole and can be easily machine bored to custom sizes

We specialize in bored-to-size sprockets

Additionally this bushing features a 7/8" bore with a standard keyway

40BS28 High-Performance Sprocket 1-1/4" 3V Double-Groove QD Bushed Sheaves What sets this 5215-2RS bearingThis 40BS28 sprocket featured a 1 1 4" finished bore with a key way and two set screws. It is a durable, high quality, and precision sprocket with hardened teeth. Sprockets that have hardened teeth last longer and are much more durable than those that don't. Something else that is notable about this sprocket is that it fully meets all ANSI Standards, which insures proper contact between the #40 roller chain and sprocket thus preventing premature wear