DFRobot
Metal DC Geared Motor w/Encoder - 6V 300RPM 3.6Kg.cm
A 6V brushed DC motor with a 20:1 metal gearbox and an integrated quadrature encoder. The encoder provides 11 counts per revolution of the motor shaft, corre...
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A 6V brushed DC motor with a 20:1 metal gearbox and an integrated quadrature encoder. The encoder provides 11 counts per revolution of the motor shaft, corresponding to 224.4 counts per revolution of the gearbox output — giving precise speed and position feedback for closed-loop motor control.
The D-shaped output shaft is 4 mm diameter × 8 mm long. The motor starts rotating from as low as 1V, with a rated voltage of 6V.
Key Features
- 20:1 Metal Gearbox – Durable all-metal gear reduction
- Integrated Quadrature Encoder – 224.4 PPR at gearbox output
- 6V Rated Voltage – Starts from as low as 1V
- 300 RPM No-Load Speed – At 6V
- 3.6 kg·cm Stall Torque – High torque for its size
- 4 mm D-Shaft Output – 8 mm length
Specifications
- Motor Rated Voltage – 6V
- Encoder Rated Voltage – 3.3 / 5V
- Gear Ratio – 1:20
- No-Load Speed – 300 RPM @ 0.1A
- Max Efficiency Point – 0.7 kg·cm / 245 RPM / 1.2W / 0.4A
- Max Power Point – 1.8 kg·cm / 160 RPM / 2W / 0.8A
- Stall Torque – 3.6 kg·cm
- Stall Current – 2.7A
- Encoder Resolution – 11 CPR (motor shaft) / 224.4 PPR (gearbox output)
- Dimensions – 50 × Ø24.4 mm
- Weight – 96 g
Ideal For
- Mobile robot drive systems
- Closed-loop speed and position control
- Encoder-based odometry and navigation
Jargon buster
Plain-language definitions for the technical terms used above.
- DC
- DC means direct current, where electricity flows in one constant direction, as supplied by batteries, USB ports and many plug-pack power supplies. When a product specifies DC, it runs from a DC supply rather than mains AC, so you need to provide the correct voltage and polarity.
- encoder
- An encoder is a sensor that converts the rotation or position of a shaft, knob or dial into electrical signals, reporting movement as incremental steps and direction, or as an absolute position. It is used to track how far something has turned, which matters for precise positioning, speed control, repeatable movement, or using a rotary knob as an input.
- kg·cm
- A torque unit often used for hobby servos, meaning how many kilograms of force the servo can hold at a 1 cm arm length. A higher kg·cm rating means the servo can move or hold heavier loads, but power supply current needs may also increase.
- Stall torque
- The maximum twisting force a servo can produce when its output is held still and cannot move. It helps you judge whether the servo is strong enough for a robot joint, steering linkage, or other load.
- Torque
- A twisting force that causes something to rotate, usually measured in newton-metres or kilogram-centimetres. It matters when choosing motors, servos, gears, and tools because higher torque is needed to lift heavier loads, turn larger wheels, or move mechanisms without stalling.
Find this product in
Robotics & Motion
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