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GPM Induction Motors
Baldor Electric Company has announced a new line of energy efficient electric motors - Large AC - GPM Induction Motors. These new AC motors are used in high torque industrial applications including pumps, fans, conveyors, and compressors; they are easy to select, order and install.

The new GPM product line is available in stock ratings 250 - 1000 Hp, 2300/4000 Volt, Totally Enclosed Fan Cooled, Foot Mounted designs. Stock motor features include:
  • Cast iron frame, end shields, and inner caps
  • Insulated opposite drive end bearing
  • Drive end slinger
  • 100 ohm platinum winding RTDs
  • Provisions for bearing RTDs
  • Space heaters
  • Suitable for use on VFD 2:1 CT, 10:1 VT
The GPM line of Large AC motors can also be ordered as custom ranging 250 - 1500 HP, 460, 575, 2300/400 Volt, TEFC, in Foot Mounted designs. Stock and Custom motors are suitable for use on variable frequency drives.

Stock Features:
  • Suitable for use on a VFD 2:1 CT, 10:1 VT*
  • Drive end slinger
  • Insulated opposite drive end bearing
  • High efficiency
  • Cast iron frame, end shields and inner caps
  • 100 ohm platinum winding RTD’s
  • Provisions for bearing RTD's
  • Space heaters
  • Ground lug in the conduit box
  • CSA approved
  • “L” and “T” shafts are ball bearing and convertible to roller bearing
  • “S” and “TS” shafts are ball bearing for coupled loads
  • Belted duty “LR” shafts are roller bearing and convertible to ball bearing
  • Paint - Specially formulated modified epoxy coating with UV protection
Our Job is to make yours easier...
Selecting and purchasing a Large AC motor doesn't have to be difficult, and now it's not! Baldor's GPM product family of Large AC induction motors have many popular ratings in stock and an extensive array of pre-engineered ratings ready for order on short lead time. Buying a Large AC motor has never been easier. Performance data, drawings, etc., are readily available to ensure the right motor is selected for your application. Common feature modifications are available on the entire product family to suit a wide variety of industrial needs.

Easy to Select, Easy to Buy, Easy to Install/Own

  • All ratings pre-engineered
  • Performance data, drawings, etc., readily available
  • Optional feature sets available
  • Available in-stock or short lead times
  • User-friendly installation & operation manuals
Suitable for use on variable frequency drives*
  • Use of a VFD can greatly increase system efficiency in many centrifugal load applications.
  • Indicators are that VFD use will increase in the coming years.
  • All GPM motors are suitable for use on a VFD, including ABB's vast line of inverter drives.
In addition to many popular ratings in stock, custom motors are also available in pre-engineered designs ranging from 250 1500 Hp, 2-8 pole, 460, 575, 2300/4000 Volt, Three Phase, 60 Hz, Totally Enclosed Fan Cooled. See page 4 for pre-engineered capabilities and ratings.

Standard Features:
  • F1 Mounting
  • IP54 Ingress Protection
  • Class F insulation / Class B temperature rise
  • Cast iron construction
  • NEMA 4 main terminal box with ground lug
  • Auxiliary terminal box with terminal strip
  • Winding RTD's 2 Per phase, 100 ohm, platinum 3 wire
  • Provisions for bearing RTD's
  • Grease lubricated ball bearings
  • Insulated opposite drive end bearing
  • Space Heaters 100-125V/200-240V to operate at 120/240V
  • CSA approved
  • Suitable for use on inverter 10:1 VT* (consult factory for constant torque speed range of GPM custom product)
  • 1.15SF on Sine Wave and 1.0SF on VFD*
  • Aluminum die-cast rotor construction or copper/copper alloy rotor construction
  • Foot mounted with dowel holes and provisions for vertical jackscrews
  • Dual drilled foot mounting
  • Paint Specially formulated modified epoxy coating with UV protection
Optional Features:
  • F2 Mounting
  • Bearing RTD's 1 Per bearing, 100 ohm, platinum single element
  • Precision balance
  • IP55 Ingress Protection
  • Encoder
  • Suitable for vibration detector (shock pulse monitoring)
  • Belted Duty Package
    • Drive end cylindrical roller bearing
    • High strength shaft steel
  • VFD application package:
    • Insulated drive end bearing
    • Shaft grounding system
  • Voltage Surge protection package (MV motors only):
    • Lightning arrestors
    • Bus bars
    • Surge capacitors
    • Oversized main terminal box