Something that sets this 2080B30 sprocket apart from others is that it is Black Oxide Finished
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50BS25 1" Finished Bore Sprocket Dimensions
BK60H Pulley single-groove 5.75" OD filter_40BS56-FB Something that sets this 2080B30This BK60H Pulley uses an H Series Bushing, is directly interchangeable with other manufacturers, is 5. 75" 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 BK60H 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