AK84H Pulley - 8.25" H-Bushed Pulley 50B35 Sprockets This 80BS21 sprocket features a

This 80BS21 sprocket features a 2-3/16" finished bore with a key-way and two set screws

AK54 Pulley 1/2" Dimensions

Sheave Size: 35V1870E

Tensile Strength: 13

Weight For Rim Only: 91

AK84H Pulley - 8.25" H-Bushed Pulley 50B35 Sprockets This 80BS21 sprocket features aThis AK84H Pulley uses an H Series Bushing, is directly interchangeable with other manufacturers, is 8. 25" in diameter, and is manufactured in accordance with ARPM Standard IP20 for safe operation. With AK series pulleys you can use A Series v belts, AX cogged v belts or 3L Series v belts. What separates this AK84H pulley from the others is that it is made using a high grade 35 cast iron, is phosphate coated, painted, and balanced at the factory.