True Planetary Gearheads
Thomson Micron® planetary gearheads are used on high precision motion control applications which require a high torque to volume ratio, high torsional stiffness, and low backlash. All of our gearheads are self-lubricating and have high radial load capacity for any given size. The ability to match inertias with our large variety of ratios, provide to keep our customers stable and controlled servo systems.
Let Thomson Help You Make Your Selection!
AquaTRUE™
Thomson Micron introduces our new AquaTRUE™ gearhead design to meet the strict requirements of harsh environmental applications; such as, food and beverage handling, and packaging and dispensing.
- Inline
- 4 Frame Sizes: 60mm, 80mm, 120mm, 160mm
- 13 arc-min precision
- Torque Capacities to 876 Nm
- 3:1 to 10:1 (single stage) .
XTRUE™
The XTRUE™ Series is our newest precision gearhead. With improved load capacity, a flexible mounting system, easy drop-in replacement, and compliance with EU Directive 2002/95/EC (RoHS), the XTRUE offers robust features in a cost-effective and efficient solution.
• Inline
• 5 frame sizes
• 13 arc-min precision
• Torque capacities to 876 Nm
• 3:1 thru 500:1
Learn more about XTRUE >
ValueTRUE™
ValueTRUE™ is the low cost, helical crowned True Planetary gearhead. The internal gear is cut directly into the stainless steel output housing casting to increase torque capacity without increasing the cost.
• Inline or Right-angled
• 8 frame sizes
• 4 arc-min precision
• Torque capacities to 2970 Nm
• 1:1 thru 100:1
Learn more about ValueTRUE >
UltraTRUE™
UltraTRUE™ True Planetary gearheads combine 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.
• Inline or Right-angled
• 8 frame sizes
• 4 arc-min precision
• Torque capacities to 3300 Nm
• 1:1 thru 100:1
Learn more about UltraTRUE >
EverTRUE™
The EverTrue™ True Planetary, RediMount compliant gearhead is designed to run in a continuous duty cycle. This Continuous Duty gearhead is lubricated for life and rated to last a minimum of 30,000 hours in a 24 hour/day, 7 day/week application.
• Inline shaft mount
• 3 frame sizes
• 4 arc-min precision
• Torque capacities to 1010 Nm
• 4:1 thru 100:1
Learn more about EverTRUE >
DuraTRUE™
The DuraTRUE™ is a high precision, True Planetary gearhead that utilizes the Thomson Micron® RediMount system. The DuraTRUE has many ratios in stock for immediate delivery through the Thomson Micron Gearhead Express program
• Inline, Right Angle (standard, hollow, dual) shaft
• 4 frame sizes
• 8 arc-min precision
• Torque capacities to 865 Nm • 1:1 thru 500:1
Learn more about DuraTRUE >
NemaTRUE™
NemaTRUE™ True Planetary gearheads are now available in a combination of metric and standard NEMA sizes. It is a low-cost, ecomomic solution for most applications and has many ratios in stock for immediate delivery through the Thomson Micron Gearhead Express program.
• Inline, Right Angle
• NEMA frame sizes
• 13 arc-min precision
• Torque capacities to 255 Nm
• 1:1 thru 500:1
Learn more about NemaTRUE >
AKM Gearmotors
Combining the industry-leading torque density from AKM servomotors with the proven performance of Thomson Micron TRUE planetary gearheads, produces a single factory integrated solution. Built for high torque applications, AKM gearmotors offer the precision and performance required by the most demanding motion control environments. Why this is the convenient, right solution for your application:
• Easy selection of factory tested combinations
• Single unit design, ready-to-mount package
• Factory integrated and tested design
• Faster assembly time and machine installation
Learn more about AKM Gearmotors >
RediMount™ System
The RediMount™ motor mounting system allows an easy, error free and quick connection of Thomson Micron’s True Planetary gearheads to just about motor available in the market. The innovative design, with adapter sleeve and input housing, features gearhead mounting within one working process.Learn more about RediMount System >
PowerTRUE™ Technology
Right angle gear meshes are typically limited to ratios from 1:1 to 3:1 when using standard bevel gears. Compared to these designs, the PowerTRUE™ 90 gear increases the ratio range to 5:1. The key to higher torque density is a unique tooth design, created by complex machining made practical with advanced CNC equipment and software.Learn more about PowerTRUE Technology >

Thomson Gear Heads, Wrap Spring and Friction Clutches