Extended 1 to 1 1/ 8 inch 1/4" Key Gas Engine Pulley Crank Shaft Sleeve Adapter Material: Stainless Steel 304 Package Included: 1 X Sleeve adapter,2 X Keys,1 X 3/8 - 24 screw,1 X 7/16 - 20 screw,1 X 12.9 Grade Washer Applications:Alters motors with a different diameter shaft and it extends it by 1.5",Alters pulleys for a different speed or belt Applications:Reduces the necessity of buying a new motor or pulley to maintain existing components and speed/power requirements.Adapts larger wheel bores to smaller axles Item specifics Condition:New Brand:Unbranded Type:Engine Power Source:Gas Material:Stainless Steel Extended 1 to 1 1/ 8 inch 1/4" Key Gas Engine Pulley Crank Shaft Sleeve Adapter Material: Stainless Steel 304. Applications: Alters motors with a different diameter shaft and it extends it by 1.5". Alters pulleys for a different speed or belt. Reduces the necessity of buying a new motor or pulley to maintain existing components and speed/power requirements. Adapts larger wheel bores to smaller axles. Works with Gas Engine Crank Shafts to enlarge the crank diameter to fit pulleys, gear boxes etc. Size Information: Sleeve inside diameter: 1" Sleeve outside diameter: 1-1/8" Sleeve total length: 4.5" ( Include extended 1.5inch) Sleeve keyway slot: 1/4" Original key length: 2", Extended key length: 1". One screw 3/8-24, 2.3" long. One screw 7/16-20, 2.4" long. 12 Grade Washer for small screw installation. Package Included: 1 X Sleeve adapter 2 X Keys 1 X 3/8 - 24 screw 1 X 7/16 - 20 screw 1 X 12.9 Grade Washer