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Common Interchanges: 50B30H
This BK52 Pulley 1-1/8" bore is directly interchangeable with other manufacturers
Bore Size: 1/4" X 1/8"
Something that is notable about this 10B18 sprocket is that it fully meets all ISO Standards
BK45H Pulley single-groove 4.25" OD UCFBS200 3-Bolt Set Screw Flange Bracket Bearings Common Interchanges: 50B30HThis BK45H Pulley uses an H Series Bushing, is directly interchangeable with other manufacturers, is 3. 15" 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 BK45H 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
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