BK57 Pulley 3/4" Bore filter_H50BS47 Length Through Bore: 5-7/8"

Length Through Bore: 5-7/8"

While the phosphate coated and then painted finish adds corrosion resistance to the 4TB54 pulley

Dimension (S): 1/4"

This 80BS29 sprocket features a 1-15/16" finished bore with a key-way and two set screws

HCFS209 Bearing Dimensions

BK57 Pulley 3/4" Bore filter_H50BS47 Length Through Bore: 5-7/8"This BK57 Pulley 3 4" bore is directly interchangeable with other manufacturers, is 5. 45" in diameter, and is manufactured in accordance with ARPM Standard IP20 for safe operation. It works with belt sizes A, 4L, B, 5L, AX, BX, AA, and BB. What separates this BK57 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. Using the grade 35 cast iron offers a higher tensile