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NemaTRUE Large


NemaTRUE™ gearheads are available in four standard NEMA sizes, three metric sizes, and both in-line and right-angle versions. All models feature our RediMount™ system for quick, error-free mounting to almost any motor. These precision gearheads provide a versatile and economical solution for many applications. We have many ratios in stock for immediate delivery through our Gearhead Express program.

Limited availability outside North America



  • Backlash: 13 arc-min
  • In-line and right-angle models
  • Ratios available from 1:1 to 500:1
  • Sealed deep groove ball bearings for precise alignment of sun gear
  • HRC 55-60 steel gears
  • Anodized aluminum housing
  • RediMount™ system


  • High radial load carrying capability
  • PowerTRUE™ gear technology provides high torque capacity in a compact package for right-angle applications
  • Superior wear resistance and increased backlash integrity
  • Fast, error-free mounting to almost any motor
  • Lightweight, corrosion-resistant housing


Mounting Type Units Inline Right-angle
Precision   13 arc-minutes 13 arc-minutes
Frame Sizes mm 17, 23/60, 34/90, 42/115 23, 34, 42
Torque Capacity Nm (lb-ft) up to 180 (133) up to 255 (188)
Ratio Availability   3:1, 5:1, 10:1, 15:1, 25:1
30:1, 50:1, 100:1
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 3730 (839) up to 2900 (652)
Mounting System   RediMount™ RediMount™

Media & Downloads

Title File Language Date Share URL
True Planetary Gearheads Installation EN English
Share URL /sites/default/files/public_downloads/True_Planetary_Gearheads_Installation_en-US_rev2008.pdf
Title Language Date Share URL
Kollmorgen Full-line Catalog English Share URLview
True Planetary Gearheads Brochure de-DE rev2005 English Share URLview
True Planetary Gearheads Brochure it-IT 2005 English Share URLview
True Planetary Gearheads Catalog EN English Share URLview

These 3D models are intended to guide your design activities and may be used as reference information. Be sure to consult a Kollmorgen expert to ensure you have the most current and accurate information for critical aspects of design work.

Title File Language Date Share URL
NemaTRUE 90 Right Angle Gearheads English
Share URL
NemaTRUE True Planetary Gearheads English
Share URL
Title File Language Date Share URL
Blue Guide English, German
Share URL

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