4B74SK Sheave four-groove 7.75" OD #140 CTB-Type Sprockets This 120R28 sprocket is a

This 120R28 sprocket is a durable

2AK20 Pulley 5/8" Dimensions

Sheave Size: 128V1700M

UCTB205 Bearing Dimensions

4B74SK Sheave four-groove 7.75" OD #140 CTB-Type Sprockets This 120R28 sprocket is aThis 4B74SK sheave features four grooves, is 7. 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