Voltage 28, Amp 55, Ring Height 1 10.60, Thread Length 13.50, Slip Ring Rear 99.40, Slip Ring Outer Diameter 27.80, Ring Height 2 9.40, Slip Ring End Length 48.60, Ring Distance 2.20, Drive End Length 70.50, Bearing Diameter 12.00, Slip Ring Front 88.60, Cooling fan w/o, Thread size M16-1.50, Outer Diameter 100.00, Height 53.80, Shaft Diameter 17.00, Total Length 172.50