Overview
The MKS Servos HV6120 Brushless Metal Gear Digital Wing Servo is a compact wing (aileron) servo designed for RC gliders and specified for F5J, F3J and F3K aileron use. The servo uses pulse width control (PWM) and features full metal gears with dual ball bearings and a coreless motor. Package contents include one servo, one servo mount, four servo horns and hardware.
For customer service and order support contact: support@rcdrone.top
Key Features
- Pulse Width Control (PWM)
- Coreless motor
- 2x ball bearings
- Metal alloy/full metal gears (precision cut)
- Designed for F5J, F3J, F3K glider ailerons
Specifications
| Model | HV6120 |
| Control | Pulse Width Control (PWM) |
| Stall torque (kg-cm) | 2.54 (3.7V) / 3.3 (4.8V) / 4.1 (6.0V) / 5.0 (7.4V) / 5.4 (8.2V) |
| Stall torque (oz-in) | 35.2 (3.7V) / 45.8 (4.8V) / 56.9 (6.0V) / 69.4 (7.4V) / 74.9 (8.2V) |
| No-load speed | 0.180 s (3.7V) / 0.139 s (4.8V) / 0.110 s (6.0V) / 0.089 s (7.4V) / 0.080 s (8.2V) |
| Stall current | 0.85 A (3.7V) / 1.1 A (4.8V) / 1.37 A (6.0V) / 1.69 A (7.4V) / 1.87 A (8.2V) |
| Working voltage | 3.5 V ~ 8.4 V DC |
| Working frequency | 1520 μs / 333 Hz |
| Dead band | 0.001 ms (default) |
| Bearing | 2x ball bearing |
| Gear | Metal alloy gear |
| Motor | Coreless motor |
| Weight | 11 g / 0.388 oz |
| Dimensions | 23 x 8 x 26.5 mm |
What's Included
- 1 x HV6120 servo
- 1 x servo mount
- 4 x servo horns
- Hardware (screws and mounting hardware)
Applications
Intended for aileron use in F5J, F3J and F3K gliders; suitable where a compact, metal-gear digital wing servo is required.
Notes
With precision cut metal gears, it is not advised to turn the servo output by hand.

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