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GM4108H-120T Encoder Combo Set


Encoders are special sensors that are added to each brushless motor of a Gimbal Stabilizer allowing the system to more accurately track motor position for increased stability which in turn also increases battery efficiency.

What's encoder technology in brushless gimbal control system?

The 3 axis stabilization gimbal system that relies on both active motor-driven components and passive inertial stabilization. Passive stabilization relies on the principles of inertia (the tendency of an object to resist change in its motion) and requires that the camera is well-balanced in the Pan, Tilt, and Roll Axes. Active stabilization refers to the techniques of using sensors to measure the camera’s Pan, Tilt, and Roll movements and counteract those movements using motors attached to the 3 axes.


Easy to do gimbal tuning, no need to do much calibration work anymore.

Power saving, 5 times long working time than gimbal without encoder system.

Twin IMUs.

Faster response, motor torque increasing instantly, no bug for difficult rotating angle anymore.

Encoder chip A5048a

GM4108 Gimbal Motor Specifications

Model: GM4108H

Motor Out Diameter: Ф47±0.05mm

Configuration: 24N/22P

Motor Height: 32.3±0.2mm (Included with Encoder housing)

Hollow Shaft(OD): Ф10-0.008/-0.012mm

Hollow Shaft(ID): 8+0.05/0mm

Wire Length: 265±3mm

Cable AWG: #24

Motor Weight: 137±0.5g

Wire plug: 2.5mm dupont connector

No-load current: 0.07±0.1A

No-load volts: 20V

No-load Rpm: 513~567 RPM

Load current: 1.5A

Load volts: 20V

Load torque(g): 1200-1800

Motor internal resistance: 11.1Ω±5%(Resistance varies with temperature)

High voltage test: DC500V 1mA@2sec

Rotor housing runout: ≤0.1mm

Steering (axle extension): Clockwise

High-low temperature test:

High temperature: Keep at 60℃ for 100 hours, and the motor can work normally after 24 hours at room temperature

Low temperature: Keep at -20℃ for 100 hours, and the motor can work normally after 24 hours at room temperature

Maximum power: ≤25W

Working current: 3-5S

Working temperature: -20~60℃;10~90%RH

Packing List

3 x GM4108H-120T Gimbal Motor with AS5048A Encoder & Magnet

1 x Alexmos 32BIT BGC Board Encoder version without alum case

1 x Connecting cables set

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