4B52SD Sheave four-groove 5.55" OD 6000 Series Deep Groove Ball Bearings This 40BS47 sprocket features a

This 40BS47 sprocket features a 1-1/4" finished bore including a key-way and two setscrews

Housing Number: PX 17

Sprocket Size: 120BTB13

This 35H112 sprocket is a durable

40B70 sprockets with a stock bore comes with the standard 3/4" inside diameter hole with no keyway or setscrews and can be easily machine bored to custom sizes

4B52SD Sheave four-groove 5.55" OD 6000 Series Deep Groove Ball Bearings This 40BS47 sprocket features aThis 4B52SD sheave features four grooves, is 5. 55" in diameter, and is designed to use a SD bushing. QD (quick detachable) style sheaves offer a wider selection of bore sizes versus a standard "fixed" bore style sheave. Also because they are a two component part if one component fails the entire part doesn't need to be replaced. All of our sheaves are manufactured out of an extremely durable cast iron, are dynamically balanced at the factory, and are