4B54SD Sheave four-groove 5.75" OD V Belt Pulley 1” Bore 40B80 sprockets with a stock

40B80 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

This 40BS35 sprocket features a 1-1/2" finished bore including a key-way and two setscrews

Weight For Rim Only: 24lbs

Dimension (B): 2-1/8"

4B54SD Sheave four-groove 5.75" OD V Belt Pulley 1” Bore 40B80 sprockets with a stockThis 4B54SD sheave features four grooves, is 5. 75" 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