This is a high-quality cast iron pulley. This pulley is designed to fit a 7/8 inch 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 which makes them less reliable in many working conditions.
MasterDrive BK34-7/8 Cast Iron 3.5 Pulley Single Groove B Section V Belt 5L for 7/8 Shaft
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