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100C72 sprockets with a stock bore come with the standard 1-1/2" inside diameter hole with no keyway or setscrews and can be easily machine bored to custom sizes
Pitch Diameter: 105
Common Interchanges: 50B26H
or to get pricing and availability on the accompanying belts/ E bushings
BK50 Pulley 1/2" Bore 4.75" V-Belt Pulley #160 S-Type Sprockets 100C72 sprockets with a stockThis BK50 Pulley 1 2" bore is directly interchangeable with other manufacturers, is 4. 75" 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 BK50 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
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