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Small silver metal geared motor with D-shaped output shaft and attached encoder module

yahboom

Yahboom 520 Motor 205RPM 12V 7.4V Educational Geared Motor

SKU CH-Q7QS-KFJR1

A 12 V or 7.4 V geared motor delivering 205 RPM with full metal gears, a Hall encoder and a D-shaped steel shaft for DIY robotics

  • CPU TypeOther
  • Full metal gears withstand heat and heavy loads for lasting durability
  • Carbon brushes and pure copper rotor deliver high torque and long service life
  • D-shaped steel shaft resists impact and simplifies coupler mounting
  • Hall encoder provides AB-phase pulses for precise speed and direction control
  • Dual 12V and 7.4V operation suits a wide range of educational projects

Yahboom 520 Geared Motor 205 RPM

The Yahboom 520 motor is a 12 V and 7.4 V DC geared unit rated at 205 RPM for DIY toys and science experiments. It targets students and hobbyists building intelligent vehicles such as Mecanum wheel cars or balance robots. The integrated Hall encoder provides AB phase pulses for speed and direction feedback. Full metal gears and a carbon brush design aim to extend service life.

Check voltage and encoder wiring

Verify that your control board can supply either 12 V or 7.4 V to match the motor rating. Confirm the controller accepts AB phase incremental encoder signals for closed-loop speed control. Ensure the mechanical load does not exceed the gearbox torque capability. The D-shaped output shaft requires a compatible coupler or wheel hub with a matching bore.

Hall encoder enables closed-loop control

The bundled Hall sensor and magnetic disc add real-time speed and direction data without extra sensors. This allows precise navigation for autonomous platforms. The carbon brush and pure copper rotor reduce resistance for higher torque output. Metal gear construction resists wear under continuous operation.

Highlights

  • Full metal gears withstand heat and heavy loads for lasting durability
  • Carbon brushes and pure copper rotor deliver high torque and long service life
  • D-shaped steel shaft resists impact and simplifies coupler mounting
  • Hall encoder provides AB-phase pulses for precise speed and direction control
  • Dual 12V and 7.4V operation suits a wide range of educational projects

Specifications

CPU TypeOther

Questions about this item

Does the 520 motor arrive with mounting hardware or do I need to source brackets separately?

The motor body and D-shaped output shaft are supplied ready to install; brackets, couplers and fasteners are not included and must be purchased separately.

Should I pick the 12 V or the 7.4 V version for a 205 RPM robot chassis?

Choose the voltage that matches your battery pack — 12 V for a 3 S Li-ion or 12 V lead-acid, 7.4 V for a 2 S Li-ion — both deliver the same 205 RPM no-load speed.

How does the Hall encoder on this 520 motor help a Mecanum-wheel robot?

The incremental AB-phase encoder gives real-time speed and direction feedback, letting the controller adjust each wheel independently for precise omnidirectional movement.

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