Wolong NEMA D Oil Well Pump Motors


Wolong NEMA D motors are engineered for oil beam pumping units, delivering high slip, high torque performance with rugged construction and reliable efficiency. With ratings from 3–150 HP, these motors are designed for durability, minimal maintenance, and proven compliance with NEMA and CSA standards.

Key Points

  • High slip (5–8%) and high torque NEMA D design optimized for oil beam pumping units
  • Opposite drive end bearing locked for high axial thrust capacity
  • Regreasable, anti-friction bearings with roller bearings on 50 HP+ models
  • VFD inverter duty rated (2:1 constant torque speed range)
  • Rugged cast iron frame for durability in demanding environments
  • Convertible F2/F1 conduit box for installation flexibility
  • TEFC enclosure, IP55 rating, and corrosion-resistant hardware for reliable performance
  • Backed by a 12-month warranty