U.S. Motors® Vertical A.C. Motors HOLLOSHAFT®, High Thrust


The U.S. Motors® brand Vertical HOLLOSHAFT® High Thrust motors are built for reliability in tough environments such as turbine, mix flow, and propeller pump systems. Manufactured to ISO9000-2000 standards, these motors are designed for premium performance, with a wide range of enclosures, bearing configurations, and efficiency options to meet rigorous industrial demands.

Key Points

  • Power range from 3 to 5000 horsepower with speeds from 3600 to 400 RPM
  • Class F insulation and high service factor ratings for demanding loads
  • Available in CORRO-DUTY® versions for harsh environments
  • Constructed for easy installation, inspection, and maintenance
  • Multiple enclosure types: WPI, WPII, TEFC, and Hazardous Location
  • Engineered for optimal thrust bearing performance and cooling
  • Includes BALLOMATIC® backstop ratchet for non-reverse protection
  • Warranty coverage up to 42 months for premium efficiency models