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This 50BS22 sprocket featured a 1" finished bore with a key-way and two set screws
Sprocket Size: 120BS13H
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BK130 Pulley 1-3/16" Dimensions
BK72 Pulley 3/4" Bore 35B27 Sprockets This 50BS22 sprocket featured aThis BK72 Pulley 3 4" bore is directly interchangeable with other manufacturers, is 6. 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 BK72 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
