Description: Easy to install, 4mm diameter shaft and 2 terminal connectors at the bottom. Rusting on the machine or Damaged DC geared motors are extremely replaceable. Widely used in automatic shutter, pan/tilt camera, slot machine, currency detector, coin refund device, currency computer, towel dispenser, automatic door, peritoneal machine, automatic TV stand, office equipment, household appliances, automatic actuators, coffee machines, towel processing, lighting, coin refund equipment, etc.