Crusher Duty Motors
Class F insulation, 1.25 service factor up to 100 hp, 1.15 service factor over 100 hp; Oversized ball bearings up to 50 hp, ball and roller bearing design 60 hp and up. 586/7/8 frames include oversized roller bearing on DE; 586/7/8 frames include oversized, insulated ODE bearing and oversized 4.375" shaft; IP55 for frame sizes up to L449.
