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50BS53 1 3/16" Finished Bore Sprocket Dimensions
100Q21 sprockets are bored to accept a Q1 type taper bushing
2AK56 Pulley 1-1/8" Dimensions
SSUCTPP206-20 bearings utilize two strategically placed set-screws for securing a 1-1/4" shaft
6217-ZZ Ball Bearing Dimensions
BK28 Pulley 3/4" Bore 80B43 Sprockets 50BS53 1 3/16" Finished BoreThis BK28 Pulley 3 4" bore is directly interchangeable with other manufacturers, is 2. 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 BK28 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
