Shop for all your general-purpose motors and accessories at Grainger. For assembly lines, a fan-cooled brake motor helps ensure that conveyors or hoists are working properly. Have a gear box that needs a magnet motor? Find it here. Grainger carries several motors with varying RPM and voltage specifications. To help save money, replace that old electric motor with a compact and energy-efficient three-phase motor. You'll find a wide range of options when you check out the selection of general-purpose motors at Grainger.