With 3V-series QD sheaves you can use standard 3V belts
Sprocket Size: 50Q47
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Each precision component of this 16B SK1 attachment is made from top-quality carbon steel that has been heat-treated for extended working life and durability
BK150H Pulley Single-Groove 14.75" OD filter_40BS33-FB With 3V-series QD sheaves youThis BK150H Pulley uses an H Series Bushing, is directly interchangeable with other manufacturers, is 14. 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 BK150H 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