Schneckengetriebe Motor 4-470RPM DC 12V 24V Getriebemotor Selbstsichernd

No-load speed: 4~470RPM. Turbo worm geared motor with self-lock, that is, in the case of motor without electric, the output axis is fixed, self-lock. The motor is Gear DC motor with micro-turbine worm, you can change the wiring-connection to change motor rotation.

eBay