Masterdrive dual groove 3.75" cast iron pulley for B Section 5L Belts. This is a high-quality cast ironpulley. This pulley is designed to fit a 7/8" keyed shaft and features dual set screws to ensure a completely secure fitting. Most pulleys that are similar to this only have one set screw, making them less reliable in many working conditions. This pulley is designed to be used with B Section Belts (ALso known as 5L Belts).
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