The 24A motor works efficiently under a range of operating conditions. It has high starting torque, adjustable speed and permanently lubricated gears, utilizing oil for long life. Other features are the unvented gearhousing, industrial lip type seals on motor and output shafts and needle bearing on output shaft which result in increased radial load capacity. Helical pinion accurately cuts on motor shaft to get maximum strength and minimum noise. It has wide reinforced thermoplastic helical gear on input stage for quietness and wide hardened steel spur gears on subsequent stages for high output torque. Performance ratings are arrived at with use of filtered controls.