BK40 Pulley 1-1/8" Bore Metric Roller Chain Sprockets This 120B20 sprocket is a

This 120B20 sprocket is a durable

Sprocket Weight: 173

This 160M40 sprocket is a durable

The superior quality stamped steel housing encases a performance C3 precision 35mm insert bearing that utilizes an eccentric locking collar for securing onto a shaft

BK40 Pulley 1-1/8" Bore Metric Roller Chain Sprockets This 120B20 sprocket is aThis BK40 Pulley 1 1 8" bore is directly interchangeable with other manufacturers, is 3. 95" 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 BK40 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