Technobots carry a preferred range of plastic and steel gears from MOD 0.5 to MOD 2 in stock. We are also able to offer an extended range of gears from our sister site gearsandsprockets.co.uk.

Not sure if your gear is metric or imperial, what the MOD or DP is? Then our gear size calculator may just help.


Any two gears from the same MOD will mesh together - must be the same MOD.
The MOD or Module is a number that relates the number of teeth to the diameter of the gear.

MOD = PCD / N where PCD is the pitch circle diameter and N is the number of teeth.

The outside diameter is:

OD = (N+2) x MOD



Special Order Transmission Product

Part No.: 9999-003

Shipping Weight: 20.00 g.

Enter your price: £
In stock
For use only where you are ordering a transmission product not listed on the website and where you have received a quotation from Technobots.  You will... Read More


Just a few of the companies Technobots are an official distributor for: