Top Shelf N20 Metal Gearbox Speed Reduction Motor For Smart Cars And Electronic Locks Runs Clean On DC 3V Or 12V With 3X20mm Steel Shaft For Gritty Diy Builds And Sweet Ride Mods That Go Hard

N20 Brushed Dc Gearmotor With 3Mm Output Shaft
✔️ Single pack 3V to 12V metal gearbox motor with 20mm drive shaft

This micro dc gear reduction motor delivers steady torque for smart car chassis setups and electronic lock actuators. You will easily mount it onto robot frames, conveyor prototypes, or automation rigs without needing extra adapters. The sealed housing keeps dust out while the steel output shaft transfers power reliably to wheels or rollers.

✅ Rated voltage runs from DC three volts up to DC twelve volts depending on your gear ratio selection
✅ No load speeds span from fifteen RPM straight through to four thousand RPM for fast or slow builds
✅ Output shaft measures three millimeters wide and sticks out twenty millimeters for secure coupling
✅ Brushed commutation design pulls steady current across smooth terrain and heavy mechanical loads

💡 What makes a geared micromotor handy for custom robotics builds? Pick a model with matched voltage and gear ratio settings to get the exact torque curve you need. - Match the input power to your battery bank so the gearbox does not overheat during long runs - Pair higher reduction ratios with low RPM needs like grippers or winches instead of fast driving wheels - Keep the shaft extension cut flush with your coupling hardware to prevent wobble under heavy loads - Use direct wire connections instead of fragile PWM controllers when you need raw stopping force