DFRobot
Turbo Metal Gear Worm Motor (12V 40RPM 8kg.cm)
This turbo worm gear motor delivers high torque through a durable metal gearbox with a 1:150 reduction ratio. The worm drive mechanism provides a self-lockin...
This turbo worm gear motor delivers high torque through a durable metal gearbox with a 1:150 reduction ratio. The worm drive mechanism provides a self-locking output shaft that cannot be back-driven, making it ideal for applications where the load must hold position when the motor is off.
Rated at 12 V with 40 RPM no-load speed and up to 8 kg·cm stall torque, this motor uses a simple two-wire connection and supports both direction control and PWM speed control via an H-bridge motor driver.
Specifications
- Operating Voltage – 6–15 V
- Rated Voltage – 12 V
- No-Load Speed – 40 RPM
- No-Load Current – 35 mA
- Rated Speed – 32 RPM
- Rated Current – 180 mA
- Rated Torque – 2.2 kg·cm
- Rated Power – 1.1 W
- Stall Torque – 8 kg·cm
- Stall Current – 1 A
- Reduction Ratio – 1:150
- Weight – 167 g
Key Features
- Self-Locking Worm Drive – Output shaft holds position when motor is unpowered
- Metal Gearbox – Durable metal gears for long service life
- High Torque Output – Up to 8 kg·cm stall torque
- Two-Wire Connection – Simple wiring with direction and PWM speed control
Ideal For
- Robotic actuators and lifting mechanisms
- Automated door and gate systems
- Camera pan/tilt platforms
- Linear motion applications requiring position hold
Package Contents
- 1× Turbo Metal Gear Worm Motor (12 V, 40 RPM, 8 kg·cm)
Jargon buster
Plain-language definitions for the technical terms used above.
- 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.
- motor driver
- An electronic circuit that lets a low-power controller switch and control a motor that needs more current than the controller pins can safely provide. Checking motor driver support matters because pumps and motors usually cannot be connected directly to a microcontroller output.
- PWM
- Pulse Width Modulation is a way for a digital pin to simulate variable output power by switching on and off very quickly. It matters for controlling things like LED brightness, motor speed, or servo-style signals from a microcontroller pin.
- 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.
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