It comes with step key that offsets from 3/16" to 1/4". The sleeve and step key are designed to slip fit on your 7/8" diameter crankshaft with 3/16" keyway and enlarge it to 1" diameter with 1/4" keyway. A steel shaft adapter to convert a crankshaft from 7/8 to 1 inch shaft. The adapter is approximately 3 inches long and includes the step key needed to go from the 1/4 in key way to the 3/16 key way. A very handy way to use your old pulley on a new engine.Alters motors with a different diameter shaft. Alters pulleys for a different speed or belt. Adapts larger wheel bores to smaller axels. Works with Gas Engine Crank Shafts to enlarge the crank diameter to fit pulleys, gear boxes etc.
Sleeve length is about 3. Step Key Length is about 2. Please contact me if you have any questions.The item "7/8 to 1 inch withStep Key Gas Engine Pulley Crank Shaft Sleeve Adapter Predator" is in sale since Tuesday, October 16, 2018. This item is in the category "Business & Industrial\Light Equipment & Tools\Stationary Engines\Parts". The seller is "ergufastsales" and is located in Humble, Texas. This item can be shipped to United States.