UltraTRUE™

UltraTRUE™ Planetary Gearheads

The UltraTRUE™ True Planetary gearhead combines the positive attributes of Helical Crowned gearing with True Planetary orientation to create a smoothest and quietest gearheads on the market today. The internal gear is cut directly into the stainless steel housing to increase torque capacity and avoid slippage. The Helical cut of the gears provides higher torque capacity, precision and stiffness when compared to straight cut gears. Thomson Micron carries the UltraTRUE™ in many ratios stocked and available for immediate delivery though 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
          Precision                 4 arc-minutes                         4 arc-minutes
  Frame Sizes (mm)  60, 75, 90, 100, 115, 140, 180, 220            60, 75, 90, 100, 115, 142, 180
    Torque Capacity
          Nm (lb-ft)
             up to 3300 (2434)                       up to 3111 (2295)
      Ratio Availability 4:1, 5:1, 7:1, 10:1, 16:1, 20:1, 25:1, 28:1, 35:1, 40:1, 50:1, 70:1, 100:1 1:1, 2:1, 3:1, 4:1, 5:1, 8:1, 10:1, 12:1, 14:1, 15:1, 16:1, 20:1, 25:1, 28:1, 30:1, 35:1, 40:1, 50:1
 Radial Load Capacity
             N (lbf)
           up to 37910 (8523)                       up to 37910 (8523)
  Mounting System                 RediMount™                            RediMount™

UltraTRUE™ Highlights

  • Tapered roller bearings provide high axial and radial load carrying capacity
  • Helical crowned HRC 55-60 steel gears provide higher torque capacity and smoother operation
  • Sealed deep groove ball bearing provides high radial load carrying capability
  • RediMount™ system provides error-free motor installation
  • Single piece output integrated output housing and internal gear
  • Anodized aluminum housing reduces weight and prevents corrosion