This 60BS13 sprocket featured a 1-1/4" finished bore with a key-way and two set screws
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Dimension (W): 86
SBRPP202-10 Bearing Dimensions
Sprocket Size: 40B72
BK47H Pulley single-groove 4.45" OD 2BK32 Pulley This 60BS13 sprocket featured aThis BK47H Pulley uses an H Series Bushing, is directly interchangeable with other manufacturers, is 4. 45" in diameter, and is manufactured in accordance with ARPM Standard IP20 for safe operation. With AK series pulleys you can use A, 4L, B, 5L, AX, BX, AA, and BB belts. What separates this BK47H 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