Got a pulley or gear that doesn't fit your engine shaft? This steel adapter sleeve converts a 3/4-inch diameter crankshaft up to 1 inch, so you can use larger-bore pulleys without buying a new motor. The sleeve is about 3 inches long and comes with a step key that transitions from a 3/16-inch to 1/4-inch keyway. Made from CNC-machined cold-rolled steel for a precise fit. Great for small engines, go-karts, lawn equipment, or any project where shaft sizes don't match. Saves you time and money by adapting existing parts. Just slide it onto your shaft, insert the key, and mount your pulley. A simple, effective solution for DIY mechanics.
