Mabuchi RF-020TH DC Motor 17mm*18mm DC 3V~6V 18000rpm High Speed Precious Metal Brush Engine for Servo Toy Model
https://www.vogueparade.com/shopping/EN/5/1/1005001600355632/mabuchi-rf-020th-dc-motor-17mm18mm-dc-3v6v-18000rpm-high-speed-precious-metal-brush-engine-for-servo-toy-model//