*1/3 HP - 2 HP *1800 Rpm *90 & 180 Volt *TENV enclosure (1/3 HP - 1/2 HP) *TEFC enclosure (3/4 HP and up) * class F insulation *1.15 Service Factor *Removable Bolt-On / Bolt-Off Base *20:1 Speed Range At Constant Torque *Permanently Lubricated Sealed Ball Bearings * High Starting Torque