Shaft Mounted Electromagnetic Clutch, Type SL SL series power-on clutches are used to couple two parallel shafts. The armature hub assembly is mounted to the same shaft as the rotor assembly. The armature hub accommodates a pulley, gear, sprocket, etc., to transmit torque to the second shaft. The field assembly is mounted on the shaft and retained by a loose fitting pin or bracket through the anti-rotation tab.
11 units have set screws 120° apart; 08 & 19 units have retaining collar; 30 & 42 units have single ball bearing between field and rotor; 26 units have 3xM4 tapped holes on 34.93mm B.C. in armature hub face instead of knurl; 30 & 42 units have keyway instead of knurl