BM SeriesM.G.M. Electric Motors BM Series,MGM. Electric Motors,MGM squirrel-cage motors and brakemotors deliver the best performance and reliability combined with low maintenance. Designed for continuous duty also under tough service conditions, these brakemotors are used wherever fast, precise, high cycling, safe low-noise braking combined with compact dimension are the application needs. BM series represent the state of the art in brake motor technology. Power Range: 0.12 HP to 60 HP