Nidec High Thrust Vertical HOLLOSHAFT® Motors


This brochure highlights the key features, construction, and configuration options of Nidec’s U.S. MOTORS® Vertical HOLLOSHAFT® motors. Designed for durability and optimal thrust in demanding pump applications, these motors meet the highest industry standards across a range of enclosures and horsepower options.

Key Points

  • Horsepower Range: 3 to 5000 HP with speeds from 400 to 3600 RPM.
  • Longevity & Reliability: A pumping industry standard since 1922, with ISO9000-2000 certified manufacturing.
  • Backstop Ratchet (BALLOMATIC®): Industry-first tech preventing reverse rotation within 4.5 degrees.
  • Environmental Adaptability: CORRO-DUTY® options available for harsh environments.
  • Enclosure Options: Weather Protected Type I & II (WPI/WPII), Totally Enclosed Fan Cooled (TEFC), and Hazardous Location rated.
  • Unique 4-Zone Design: Facilitates installation, protection, and optimal motor performance.
  • Robust Bearing Systems: High bearing capacities with configurable bearing types.
  • Energy Efficiency: Available in Standard, Energy Efficient, and Premium Efficient models.