4WD Smart Car Chassis with Velocity Tracing

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The chassis is 4WD with velocity measurement and can be used to track the road. The diameter of wheel is about 6cm, thickness of plate is about 3mm, the length is about 25cm, and the width is about 14.8cm. when the volate is 7.2V, the velocity is about 0.65m/s. Certainly, if improved the voltage, the velocity is high. But, the suggested working voltage is about 5-10V.


  • Has simple mechanical structure, which is installed very conveniently.

  • Use four piece of DC reduced motor, which is very flexible and strong power.

  • The chassis is big and easily extended.

  • The car has the velocity measuring coder.

  • Reduced rate: 1:48

  • Working Voltage: 3V/5V/6V

  • Working Current: 100mA/100mA/120mA

  • No_Load RPM: 100/190/240 RPM

  • Diameter: 6.6cm

  • No_Load Speed: 20m/min,39m/min,48m/min

  • Weight: 209g

  • Size: 70*22*18mm

  • Noise:<65db< span="">


  • This item is sent by unassambled for the convenient transmission.

Shipping List

  • Arcylic plate: 2pcs

  • Wheel: 4pcs

  • Gear motor: 4pcs

  • Velocimetry coder: 4pcs

  • Bracket: 8pcs

  • Copper pillar: 8pcs

  • Screws: several



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