REC Gearbox is a project that has been tested on our Team robots since 2012. After a hundred of fights, tests and fails, here you get the best improvement possible on drill based gearbox!!


REC Gearbox can be produced at differents final ratio as 6:1, 24:1 and 36:1, meaning that you can select the one that best fits your project.


REC Gearbox break the wall of RS550’s motors type, handling also RS775 motors on 24:1 version.

No stall

The most significant improvement on our Gearbox is the replacement of all parallel pins to taper pins, so no loose pin, no instant stall, no smoke!


REC Gearbox is made from 45x45mm 6061 Aluminium alloy and have 12x M6*1mm  threaded holes.

Dual bearing supporting the main shaft, make sure that everything will keep running even under big radial loads.



General dimensions:

Square – 45x45mm

Main Shaft length (12mm) – 38mm

3/8 UNF Theaded shaft length – 15mm

Total length – 145mm (including RS550 motor)

Weight – 473g (including RS550 motor)


Motor specifications:

Nominal voltage – 18Vdc

No load speed – 19800 rpm

Gearbox General specifications:

6:1 – 3300rpm

24:1 – 825rpm

36:1 – 550rpm




Plug and Play

6:1 version – 30£ including RS550 motor.

36:1 version – 30£ including RS550 motor.

24:1 version – 34£ including RS550 motor.


Prices exclude shipping costs, bulk (>4) gearbox benefit from discount.

Please for more information e-mail –