SCR rated DC motor has a low profile and unique brush holder design for easy access. Long brush life. Permanently lubricated sealed ball bearings. Die cast aluminum endshields with cast iron bearing inserts. U.S.A. HP: 1/4, Rated RPM: 1,750, Volts: 90, Shank Diameter (in.): 5/8, Frame Type: NEMA C Face Mounting - SS56C