RDS3120MG 22kg Metal Gear Digital Servo 180° Dual Bearing
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Prices updated: 13 Oct 2026
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About this product
A 180-degree digital servo with metal gears and dual ball bearings, built for robot arms and DIY RC projects that need high holding torque. It operates from 4.8V to 7.2V and produces 16 to 22 kg·cm of torque depending on voltage. Control uses 500 to 2500 µs pulses with a 1500 µs neutral position.
Specifications
- Rotation range
- 180°
- Operating voltage
- 4.8–7.2 V DC
- Torque
- 16 kg·cm (4.8V), 20 kg·cm (6V), 22 kg·cm (7.2V)
- Speed
- 0.18 s/60° (4.8V), 0.16 s/60° (6V), 0.15 s/60° (7.2V)
- Pulse range
- 500–2500 µs
- Stall current
- 2.0 A
- Gear type
- Metal gear
- Dimensions
- 40 × 20 × 40 mm
Frequently asked questions
How should I power this servo?
The stall current is 2.0A, so use a supply that can deliver that peak current within 4.8V to 7.2V, and connect its ground to the controller's ground.
How is it controlled?
It uses PWM pulses from 500 to 2500 µs with a 1500 µs neutral position, so it works with any controller that outputs a standard servo signal such as Arduino.
