Back to top


Our gearheads incorporate TRUE Planetary™ gearing for high torque capacity as well as smooth and quiet operation. True Planetary gearheads are ideal for use in high precision motion control applications which require a high torque to volume ratio, high torsional stiffness, and low backlash. All of our gearheads are lubricated for life with no maintenance required. Through new technologies, improved designs and enhanced mounting options, we now offer the largest selection of planetary gearheads in the world. We strive to have a solution for every customer application. With our large variety of ratios, our customers have the ability to reduce speed, increase torque or match inertias to provide a stable and controlled servo system.

Our product offering includes Helical Crowned True Planetary gearheads with the ValueTRUE™ and UltraTRUE™ for applications that require high torque and precision. We have economical gearhead options with the XTRUE™ product line as well as dual and hollow shaft gearheads with the DuraTRUE™. We also offer complete gearmotors featuring our industry-leading AKM™ Series servo motors preassembled to a choice of Gearheads.


The DuraTRUE™ Series offers high-precision gearheads with a variety of shaft configurations, allowing you to design your system in the smallest of envelopes by eliminating the need for couplings. You can even run two axes with one motor using the DuraTRUE “T” design.

Learn More >>


For continuous duty cycle applications, our EverTRUE™ Series gearheads are lubricated for life and rated for at least 30,000 hours of 24/7 operation. These high-precision gearheads are compatible with our RediMount mounting system for easy installation on almost any motor.

Learn More >>


NemaTRUE™ gearheads are available in four standard NEMA sizes, three metric sizes, and both in-line and right-angle versions—all featuring our RediMount mounting system. These precision gearheads provide a versatile and economical solution for many applications..

Learn More >>

PowerTRUE™ Technology

Right-angle bevel gear meshes are typically limited to ratios from 1:1 to 3:1. Our PowerTRUE™ 90 gear technology uses an advanced tooth design to increase the ratio range to 5:1. It’s available on NemaTRUE, DuraTRUE, UltraTRUE and ValueTRUE 90° gearheads.

Learn More >>

RediMount™ System

The RediMount™ motor mounting system allows mounting of our TRUE Planetary gearheads to practically any motor available on the market. The innovative design, featuring an adapter sleeve and input housing, ensures that gearhead mounting Is always quick, easy and error-free.

Learn More >>


The UltraTRUE™ Series combines our highest-precision helical crowned gearing with TRUE Planetary orientation to create the smoothest and quietest gearheads on the market today. A wide range of metric frame sizes and gear ratios are available in straight and 90° versions.

Learn More >>


Our ValueTRUE™ Series delivers high precision at a competitive price. With only 4 arc-minutes of backlash, and available in a wide range of frame sizes and ratios, they’re perfect as original equipment or as a drop-in replacement for most common helical gearheads.

Learn More >>


The XTRUE™ Series offers a cost-effective solution with robust features. With five frame sizes, straight and 90° versions, and our RediMount™ mounting system, these precision gearheads provide easy installation and reliable performance.

Learn More >>