The V-Belt Pulley Bushed Bore 145R53 is a V-belt pulley with a bushing bore. It has a 3.5" outside diameter, a 1.5" bore diameter, and a 0.5" bushing length. The pulley is made of cast iron with an oil-impregnated bronze bushing. It has a load rating of 53 lbs and is designed for use with fractional horsepower motors. The pulley can accommodate a V-belt with a cross section of A, B, C, or D. It provides a means to transfer rotational force from a motor shaft to another rotating component via a V-belt.