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Motorized Torque Arm, MTA

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With 60 years of proven dependability and more than 1.8 million units in service throughout the world, Dodge Torque-Arm speed reducers are the standard of the industry and the benchmark to which others are compared.

Responding to overwhelming customer demand, we have now introduced a line of HEAVY DUTY right angle beltless Torque-Arm reducers for customers who need the power and performance of a truly rugged gearbox for more demanding applications.


  • Heavy Duty AGMA rated design•Bearings are sized to conform to American Gear Manufacturers Association and American Bearing Manufacturers Association design of an unadjusted minimum of 25,000 hrs average life (L-50) in Class I applications. This is usually twice the bearing life of many competitive reducers that are not designed to this standard.
  • Ratings from 3hp to 100hp
  • Tapered roller bearings on all helical shafts
  • Premium HNBR oil seals with output excluder seals
  • Standard and short shaft twin-tapered bushings
  • Industry leading backstop design, EP lube
  • Standard Screw Conveyor Adapter and drive shaft
  • Standard TA II torque arm rod kits
  • EZ Class I & II selection tables
  • Rugged, high efficiency, case carburized helical/bevel gearing
  • Reduced assembly time
  • Reduced guarding costs
  • Reduced maintenance requirements
  • Optional bushing end covers
  • Reducer mounts in multiple positions
  • Three piece coupled design utilizes standard Baldor Electric NEMA c-face motors in two motor speeds and multiple gear ratios to provide a wide spectrum of output speeds
  • Patented Twin Taper Bushing System
  • AGMA and ABMA Rated
  • Advanced Sealing System

common industries

  • Aggregates
  • Mining
  • Cement
  • Asphalt
  • Grain
  • Mixing & milling
  • Oil & Gas - Ethanol
  • Water & Wastewater
  • Forest Products

common applications

  • Apron feeder
  • Belt conveyor
  • Bucket conveyor
  • Drag conveyor
  • Ribbon mixer
  • Roller bed
  • Screw conveyor
  • Vibratory feeder