DuraTRUE™

DuraTRUE™ Planetary Gearheads

The DuraTRUE™ is a high precision, True Planetary gearhead that utilizes the Thomson Micron® RediMount system. With a variety of shaft configurations, you can design your system in the smallest of envelopes eliminating the need for coupling.  The “T” design allows the ability to run two axes with one motor.  The DuraTRUE™ has many ratios in stock for immediate delivery through the Thomson Micron Gearhead Express program.

Thomson offers two technologies with most of its TRUE planetary gearheads:
• RediMount™ Motor Mounting System for easy, error free, and quick connection
• PowerTRUE™ 90 Technology, a unique tooth design for higher torque density

Let Thomson Help You Make Your Selection!

Micron MOTIONEERING®, Thomson’s gearhead sizing, selection, and pricing tool can help you size gearheads to high precision motion control applications which require a high torque to volume ratio, high torsional stiffness, and low backlash.

Note: 2D/3D models can be downloaded through Micron MOTIONEERING®


Ready for Immediate Delivery
      Mounting Type            Inline      Right-angle    Hollow Shaft 
    Right Angle
     Dual Shaft 
    Right Angle
          Precision    8 arc-minutes     8 arc-minutes     8 arc-minutes    8 arc-minutes
   Frame Sizes (mm)   60, 90, 115, 142   60, 90, 115, 142     90, 115, 142  60, 90, 115, 142
    Torque Capacity
           Nm (lb-ft)
 up to 834 (615)   up to 842 (621)    up to 865 (638)    up to 865 (638)
     Ratio Availability   3:1, 4:1, 5:1, 7:1 
   10:1, 15:1, 20:1
   25:1, 30:1, 40:1
  50:1, 70:1, 100:1
 5:1, 6:1, 9:1, 10:1
  12:1, 15:1, 20:1
  25:1, 30:1, 40:1
  50:1, 60:1, 75:1
      90:1, 100:1
     120:1, 125:1
     150:1, 200:1
     250:1, 300:1
     400:1, 500:1
  1:1, 2:1, 3:1, 4:1
   5:1P, 5:1T, 6:1
   9:1, 10:1, 12:1
  15:1, 20:1, 25:1 
  30:1, 40:1, 50:1
  60:1, 75:1, 90:1
     100:1, 120:1
     125:1, 150:1
     200:1, 250:1
     300:1, 400:1
          500:1
  1:1, 2:1, 3:1, 4:1
   5:1P, 5:1T, 6:1
   9:1, 10:1, 12:1
  15:1, 20:1, 25:1
  30:1, 40:1, 50:1
  60:1, 75:1, 90:1
     100:1, 120:1
     125:1, 150:1
     200:1, 250:1
     300:1, 400:1
          500:1
 Radial Load Capacity
             N (lbf)
    up to 11150 
         (2507)
     up to 11150 
          (2507)
    up to 11150
         (2507)
    up to 11150
          (2507)
  Mounting System      RediMount™      RediMount™     RediMount™     RediMount™

DuraTRUE™ Highlights

  • High Torque to Size Ratio - allows compact design
  • Low Backlash - eliminates positioning errors due to lost motion
  • Inertia Matching - keeps servo system stable and in control
  • High Rigidity - optimizes system response
  • Self Re-lubrication - eliminates costly maintenance and downtime
  • High Radial Load Capacity - mount pulleys and pinions directly on the output shaft
  • Error Free Mounting - Redimount Compliant