10mm N10 Planetary Gearbox Geard Electronic Starter DC 3V-5V 3.7V 150RPM Slow Speed Reduction Electronic Starter with Bevel Gear Shaft Motor Drivers
12mm N10 Planetary Gear Reducer Electronic Starter DC 5V 140RPM Quiet Engine Cross Gear for Lock Robot Toy Model Motor Drivers
DC 5V 10mm Diameter Planetary Gear Stepper Electronic Starter 2-Phase 4-Wire Gear Reducer Stepping Engine 20.5 Ohms DIY Motor Drivers
10mm M10 Planetary Gear Electronic Starter Small Gearbox Reducer Electronic Starter DC 1.5V 3V 3.7V 85RPM Slow Speed Cross Shaft DIY Robot Toy Motor Drivers
10mm M20 Planetary Gear Electronic Starter Small Gearbox Reducer Electronic Starter DC 1.5V 3V 3.7V 133RPM Slow Speed Cross Shaft DIY Robot Car Motor Drivers
