Motors & Drives


ENDURADRIVE® Fan System Retrofit Kit

  • Complete kit with matching motor, VFD, fan, bushing and upgraded 2-beam mechanical support
  • 90% reduction in maintenance costs
  • Up to 10% energy reduction vs standard gear drive system
  • 100% reliability with the elimination of a power transmission system
  • Industry best 7 year motor warranty and 5 year limited VFD warranty

Availability: Horsepower ratings from 15 to 95 kilowatt with mounting and shaft dimensions to fit the Series 3000 Cooling Tower.


Premium Efficient Motors

  • Motors meet Australian MEPS2 Efficiency Standards
  • Motors are engineered specifically for the rigors of cooling tower applications with strategic drain requirements
  • Made of high-grade FC-200 cast iron for maximum cooling and includes additional grounding plug
  • Permanently sealed bearings never require lubrication and eliminate water contamination to the bearing grease
  • BAC Premium Efficiency Cooling Tower Duty Motors are covered by a 3-year warranty when the motor space heater (thermistor) is wired according to the motor wiring diagram
  • IP55 rating for greater protection from water and particulate contaminants


  • Specially selected tubing materials ensure strength and durability
  • BAC shafts are precision manufactured for vibration-free operation
  • Epoxy-coated for corrosion resistance
  • Journals are ground and polished for an accurate fit and easy bearing and drive component installation
  • Long keyways for multiple drive combinations
  • Grooved flats for positive, secure set-screw installation

Availability: Sizes from 1” to 2-15/16” diameter and 18” to 148” long. Many available with nickel plating or in stainless steel for added corrosion resistance.


Gear Systems

  • Meet AGMA and CTI standards to ensure reliability
  • Constructed of high-strength cast iron for low sound, vibration-free operation
  • Gear drives are available for both BAC and other manufacturers’ equipment (exact dimensional fit, no modification required)

Availability: Horsepower ratings from 5.5 to 75 kilowatt with mounting and shaft dimensions to fit virtually any make of cooling tower.


Gear Couplings

  • No need for maintenance or lubrication
  • Installation is quick and easy, and no special tools are needed
  • Couplings absorb all types of misalignment caused by shock or vibration
  • Not affected by dirt or moisture

Tech Tip: Prior to installing the couplings, it is important to clean the shaft of any lubricants or protective coatings, as well as remove any existing burrs that may damage the coupling.


Composite Drive Shafts

  • Composite shaft ships with 316 SST gear and motor couplings and hardware
  • Made from high-strength composite material that allows for higher misalignment tolerance
  • Corrosion resistant
  • Lightweight, which reduces vibration and extends the life of the shaft