Standard, Modified or Customized

High-Precision Planetary Gearboxes for OEMs

OEM Solutions for the Toughest Industrial Automation Applications

Our Products

100+ Standard Products that can be Customized

  • Compatible - All Servo/Stepper Motors
  • Precision as Low as <1 arcmin
  • One-piece Ring-gear
  • Lubricated for Life
  • All Helical Gearing
  • All Customizable
  • One-piece Output Shaft
  • Maintenance Free
  • Drop-in Compatibility - Other Manufacturers
  • IP65 Rating
  • One-piece Sun Gear and Input Shaft
  • Quiet Operation

Inline Planetary Gearbox Overview By Series

Shaft Output & Square Mounting Flange

Performance
Precision Durability
Frame Sizes
Special Considerations
Cost
Series
Value
Long
42-180
Low Cost/High Performance
$
TCB
Advanced
Longer
42-375
Improved Coaxiality
$$
TB
Premium
Longest
60-220
Higher Radial Load Capacity
$$$
TF

Shaft Output & Round Mounting Flange

Performance
Precision Durability
Frame Sizes
Special Considerations
Cost
Series
Advanced
Longer
50-235
Improved Coaxiality
$$
TE
Value
Long
70-155
Low Cost/High Performance
$
TCE

Flange Output & Round Mounting Flange

Performance
Precision Durability
Frame Sizes
Special Considerations
Cost
Series
Advanced
Longer
47-255
Flexible with Output Pinion Mount
$$$
TD

Right Angle Planetary Gearbox Overview By Series

Shaft Output & Square Mounting Flange

Performance
Precision Durability
Frame Sizes
Special Considerations
Cost
Series
Value
Long
42-180
Low Cost/High Performance
$
TCBR
Advanced
Longer
42-375
Improved Coaxiality
$$$
TBR

Shaft Output & Round Mounting Flange

Performance
Precision Durability
Frame Sizes
Special Considerations
Cost
Series
Advanced
Longer
50-235
Improved Coaxiality
$$
TER

Flange Output & Round Mounting Flange

Performance
Precision Durability
Frame Sizes
Special Considerations
Cost
Series
Advanced
Longer
47-255
Flexible with Output Pinion Mount
$$$
TDR

Give Us a Try

GearKo® Test &
Evaluation Program

Combine GearKo® high-precision planetary gearboxes with a servo or stepper motor and the result is proven performance that is often significantly better than the competition.

Want to put us to the test?

Check out our Evaluation Program.

Need a Standard, Modified or Customized
OEM Solution?

We can help. We will work with you to develop exactly the
right solution to meet your specific requirements.

GearKo®

High-Precision
Planetary Gearboxes

GearKo was founded in 2010 by engineers and machinists with over 30 years in the design and production of precision planetary gearboxes. Today GearKo is well equipped to produce the best high-precision planetary gearboxes in the industry.

The GearKo name is Gearing! GearKo high-precision planetary gearboxes are built for the toughest industrial automation applications. GearKo gearboxes have as little as less than 1 arc minute of backlash and the highest torque rating per frame size on the market. GearKo patented designs can support the most demanding applications across dozens of industries.

GearKo is ISO 9001 certified and compliant to European CE mark certification.

“GearKo has been extremely supportive of our product development with short lead times and fair prices.
The gearboxes have performed significantly better than the competitors we tested and are currently our
choice to move forward in our production product.”

— Opex Automation Mechanical Engineer
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