BK120 Pulley 1-3/8" Bore 4012 Coupling Half Sprockets This 41BS27 sprocket featured a

This 41BS27 sprocket featured a 1" finished bore with a key-way and two set screws

Part Number: #200B25

Pitch Diameter: "

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BK120 Pulley 1-3/8" Bore 4012 Coupling Half Sprockets This 41BS27 sprocket featured aThis BK120 Pulley 1 3 8" bore is directly interchangeable with other manufacturers, is 11. 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 BK120 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