Kohler 1 Inch to 1-1/8 Inch Crankshaft Enlarging Kit Slips over a 1" crankshaft to enlarge to 1-1/8" crank min shipping charge from the factory is $34.48 Can be cut shorter if needed for short cranks. Install with bearing grease when possible for added cushioning. not to be used on a chipper/shredder, vacuum or anything with a heavy rotor