These are true all-metal 12 mm planetary gearmotors, purpose-built for combat robotics weight classes and real-world abuse.
As far as we know, these are the only 12 mm all-metal planetary gearmotors designed specifically for this market—and they remain remarkably lightweight, starting at just 13.8 g.
The Turnabot Planetary motors pair exceptionally well with the Turnabot Torque-Lock Collet Wheel System. The D-flat on the output shaft is precisely sized to allow the wheel to be securely clamped and retained with a circlip on one side, while maintaining proper clearance from the motor body. This results in a robust, combat worthy wheel attachment that stays secure without loading the motor shaft.
Planetary gearboxes distribute shock loads through the carrier and ring gear, significantly reducing shaft bending and tooth shear that commonly disable spur gearboxes during impacts.
Multiple planet gears share the load, allowing far more torque to be transmitted within the same 12 mm diameter envelope.
Each Planetary 12 features a 16 mm output shaft with a machined retention notch and ships with an included circlip (compatible with other retention hardware). This provides dramatically improved wheel retention under weapon hits and wall impacts.
Choose the size and power profile that best fits your drivetrain and battery setup.
Ultralight planetary strength in the smallest package.
Weight: 13.8 g
Up to two N10s per drive side using a Standard Malenki on 2S
Up to two N10s per drive side using a Malenki HV on 3S
The most popular size, now with planetary durability.
Weight: 15.2 g
One N20 per drive side using a Standard Malenki on 2S
Up to two N20s per drive side using a Malenki HV on 2S
One N20 per drive side using a Malenki HV on 3S
Essentially an N20 in an N30 form factor, with increased thermal mass for longer battle time—especially on 3S.
Weight: 17.8 g
One per drive side using a Standard Malenki on 2S
Up to two per drive side using a Malenki HV on 2S
One per drive side using a Malenki HV on 3S
The most powerful option in the lineup, offering enormous torque and corresponding current demands.
Weight: 17.8 g
One N30 per drive side using a Malenki HV on 2S
For additional motors and/or higher voltage, use a Scarab ESC
These motors are extremely powerful for their size. Avoid prolonged stalling, as continuously applying power while the motor is prevented from spinning can damage any brushed motor of this performance level.
STL and STEP files are available in the 3D CAD Library
(Price is for one motor.)
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