Photo: Lukas Ruge · CC0
TT gear motor 1:48 with 65 mm wheel
The yellow gear motor of most robot kits, with its wheel. About 200–250 rpm at 6 V without load.
See the price in the shop
Where to buy
Uzum MarketUzum Marketdagi qidiruv natijalari · Delivery on the seller’s terms · All of UzbekistanSee the price in the shopBuy
Prices and stock are set by the shops. The site sends you to the shop; you buy there.
Speed of a robot
One turn of a 65 mm wheel moves the robot about 20 cm (π × 65 mm). So the robot's speed is the wheel's turns per minute × 20 cm.
Two motors are never the same
Two motors from one box turn at slightly different speeds, so a robot that sends both the same PWM drifts to one side. The article TT gear motors shows how to correct it.
