300RPM Centre Shaft Economy Series DC Motor is high quality low cost DC geared motor. It has steel gears and pinions to ensure longer life and better wear and tear properties. The gears are fixed on hardened steel spindles polished to a mirror finish.The output shaft rotates in a plastic bushing.The whole assembly is covered with a plastic ring. Gearbox is sealed and lubricated with lithium grease and require no maintenance. The motor is screwed to the gear box from inside.
Although motor gives 300 RPM at 12V but motor runs smoothly from 4V to 12V and gives wide range of RPM, and torque

Tables below gives fairly good idea of the motor’s performance in terms of RPM and no load current as a function of voltage and stall torque, stall current as a function of voltage.

Specifications of the product are:-

DC supply: 4 to 12V
RPM: 300 at 12V
Total length: 46mm
Motor diameter: 36mm
Motor length: 25mm
Brush type: Precious metal
Gear head diameter: 37mm
Gear head length: 21mm
Output shaft: Centred
Shaft diameter: 6mm
Shaft length: 22mm
Gear assembly: Spur
Motor weight: 90gms