615 hollow cup gear motor wheel set DIY high-speed tyre
This DIY high-speed car gear motor 3V to 5V,
Suitable voltage 3.7V, 4.2V and 5V
on 3.7V a wheel output speed is 2600 rpm with a no-load current of 200mA.
When powered by 3V, the wheel output speed is 2200 rpm with a no-load current of 160mA.
On 5V the speed is about 3600rpm