Universal AC/DC Mtr, 1/2hp, 10, 000rpm, 115V 1/2 hp, 10,000 RPM, 6.3 amps, 115 Volts AC 60hz. Mounting:Bottom with Four Tapped Size 10-32 Holes, 2 x 2 1/2 Inch OC Ball Bearings - Shaft = 3/8 x 1 3/16; Open Motor Motor Length Less Shaft = 6 1/5" One Year Manufacture Warranty