Direct Drive Motors

The Baldor-Reliance direct drive motors are synchronous PM motors that use laminated finned frame construction to provide a highly efficient power dense package with flange mounting dimensions that can replace the right angle gearbox and jack shaft installation in many conventional cooling towers. This same technology is offered in conventional, yet power dense, foot mounted designs that can replace the belt and sheave application where more vertical mounting space is available. Derived from one of the toughest motor platforms used in the most demanding industrial applications, Baldor-Reliance direct drive motors are the right solution for operation inside the tower’s hot and humid environment.  Direct drives are ideal for cooling towers, air cooled condensers and air cooled heat exchangers.


  • Eliminates the need of gearbox, drive shaft, coupling alignment and more
  • Increased system reliability with fewer mechanical parts
  • Quieter operation than conventional motor/gearbox system
  • Simplified installation or retrofit with gearbox foot print
  • Increased efficiency and power factor performance
  • Inverter duty and performs in optimal efficiency levels
  • Inpro/Seal® combination slinger and labyrinth non-contact shaft seal protects motor from water ingress
  • and contamination
  • Easy to use drive control parameters
  • Interfaces easily to building automation control systems
  • Replaces high maintenance conventional gear and belt drive arrangements
  • Offering in shaft up or down configuration

Common applications

  • Wet and dry cooling towers
  • Air cooled condensors
  • Air cooled heat exchangers

Common industries

  • HVAC
  • Chemical, oil and gas
  • Power generation

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