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Description
5/8 to 3/4 Inch w/Step Key Gas Engine Pulley Crank Shaft Sleeve Adapter Pulley Bore Reducer Bushing Sheave & Key The sleeve key and stepped key are designed to fit perfectly into the 3/16-inch keyway and fit on a 5/8-inch diameter crankshaft, and enlarged to 3/4-diameter through a 3/16-inch key seat Used in conjunction with gas engine crankshafts to enlarge the crank diameter to fit pulleys, gearboxes