【Function】: The sleeve and keystock kit is designed to fit on the 3/4” diameter crankshaft with 3/16" keyway and enlarge it to 1" diameter with 1/4" keyway
【Material】: Made of Stainless Steel & Made By CNC Machine To Ensure Excellent Strength & Precision
【Applications】: Alters pulleys for a different speed or belt; Alters motors with a different diameter shaft; Reduces the necessity of buying a new motor or pulley to maintain existing components and speed/power requirements; Adapts larger wheel bores to smaller axels; Works with gas engine crank shafts to enlarge the crank diameter to fit pulleys, gear boxes etc.