DYNALINE - PULLEY VARI-SPEED 3-1/4X3/4IN - DYL55492

This variable speed, die-cast aluminum pulley has an outside diameter of 3 1/4 inches and a 3/4-inch bore diameter. The solid type pulley is designed for "A" and "B" belts. Opening the pulley increases the speed at which it rotates. This pulley has a keyway and comes supplied with set screws.