DIY Knifemaker's Info Center: Belt Grinder Motor Guide
One horsepower equals 0.746 kilowatts if you need to do the conversion. Induction motors are made from fractional horsepower ratings like 1/3 hp to thousands of horsepower. For a decent 2" x 72" belt grinder, we're looking for ideally 1 to 3 horsepower, with a preference for 1.5 to 3 horsepower.