1B184SK Sheave single-groove 18.75" OD #60 Coupling Sprockets This 120J70 sprocket is a

This 120J70 sprocket is a durable

The roller of a chain is responsible for the sprocket-to-chain contact

Sprocket Size: 120R30

100B8H sprockets with a stock bore comes with the standard 1" inside diameter hole with no keyway or set screws and can be easily machine bored to custom sizes

1B184SK Sheave single-groove 18.75" OD #60 Coupling Sprockets This 120J70 sprocket is aThis 1B184SK sheave features one groove, is 18. 75" in diameter, and is designed to use a SK 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