The CubeMars GL40 II KV82.5 Gimbal Motor is designed for high-end gimbal systems and precision applications such as gimbals, radars, and autonomous driving systems. Upgraded from the original GL series, the GL II series features an advanced electromagnetic and structural design that delivers smoother operation, enhanced control, and greater compatibility.
A key enhancement is the new hollow shaft driver board, supporting both CAN and PWM communication, enabling flexible integration into different systems. The hollow shaft diameter has been increased from 8 mm to 12.5 mm to accommodate more slip rings, while the overall motor diameter has been slightly reduced to 46.1 mm for improved installation adaptability.
The cogging torque has been reduced by 30%—from 1 cN·m to just 0.7 cN·m—enhancing low-speed servo performance. Three control modes—MIT mode, Velocity-Position mode, and Velocity mode—allow the GL40 II to meet diverse application requirements.
With black XT30 2+2 interface for combined power and CAN signal transmission and white CJT-3pin interface for upper computer parameter adjustment, debugging is more efficient and reliable. The motor works seamlessly with CubeMars’ upper computer software for easy parameter recognition, current loop tuning, and serial port baud rate configuration.
Key Features
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New Hollow Shaft Driver Board – Supports CAN & PWM communication for flexible control.
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30% Lower Cogging Torque – Reduced from 1 cN·m to 0.7 cN·m for improved low-speed performance.
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Three Control Modes – MIT mode, Velocity-Position mode, Velocity mode.
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Larger Hollow Shaft – 12.5 mm diameter for more slip ring compatibility.
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Compact Motor Size – Reduced diameter (46.1 mm) for better integration.
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Dual Debug Interfaces – XT30 2+2 (black) and CJT-3pin (white) for convenient setup.
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Upper Computer Integration – One-click motor parameter recognition and multiple working modes.
Technical Drawing
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Motor Diameter: Ø46.1 mm
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Hollow Shaft Diameter: Ø12.5 mm
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Motor Length: 33.5 mm
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Mounting Holes: 4 × M3 (3.5 mm depth, 27 mm/24 mm circle diameter)
Specifications – GL40 II KV82.5
| Category | Details |
|---|---|
| Application | Gimbal, Radar |
| Driving Way | FOC |
| Operation Ambient Temp. | -20℃ ~ 50℃ |
| Winding Type | Star |
| Pole Pairs | 14 |
| Insulation Class | H |
| Insulation High-Voltage | 500V 5mA/2s |
| Insulation Resistance | 500V 10MΩ |
| Phase | 3 |
Electrical Parameters
| Parameter | Value |
|---|---|
| Rated Voltage | 16V |
| No-Load Speed | 1388 rpm |
| Rated Torque | 0.25 Nm |
| Rated Speed | 697 rpm |
| Rated Current | 1.88 ADC |
| Peak Torque | 0.68 Nm |
| Peak Current | 5.22 ADC |
| Kv | 82.5 rpm/V |
| Kt | 0.11 Nm/A |
| Ke | 0.0115 V/krpm |
| Phase to Phase Resistance | 3000 mΩ |
| Phase to Phase Inductance | 1320 μH |
| Inertia | 79.45 g·cm² |
| Km | 0.06392 Nm/√W |
| Mechanical Time Constant | 2.045 ms |
| Electrical Time Constant | 0.44 ms |
| Weight | 112 g |
| Maximum Torque Weight Ratio | 60.71 Nm/kg |
Manual Downloads
Gimbal Motor Drive User Manual.pdf
Gimbal Motor Driver Quick Operation Manual.pdf
Details

CubeMars GL40 II KV82.5 Gimbal Motor technical drawing: Ø46.1 x 33.5 mm, Ø27 and Ø24 holes, 4-M3x3.5mm and 4-M3x3mm screws, Ø12.5 +0.02 tolerance.

CubeMars GL40 II KV82.5 Gimbal Motor: 16V, 1388rpm no-load, 0.25Nm torque, 1.88ADC current, 82.5rpm/V Kv, 0.11Nm/A Kt, 112g weight, 60.71Nm/kg max torque-to-weight ratio.

CubeMars GL40 II KV82.5 Gimbal Motor analysis chart displays output power, efficiency, current, and speed RPM against torque N.m, highlighting performance characteristics at 16VDC.

CubeMars GL40 II KV82.5 Gimbal Motor performance graph. Displays output power, efficiency, current, and speed against torque. Peak power at 0.54 N.m, with declining speed and increasing current as torque rises.

CubeMars GL40 II KV82.5 Gimbal Motor: 16V, 18.2W, 0.25Nm torque, 1.88A current, 697RPM speed, 0.68Nm peak torque, 5.22A peak current, 1388RPM no-load speed, 3000mΩ resistance, 1320μH inductance, 14 pole pairs, 112g weight, 46.1x33.5mm size.

CubeMars GL40 II KV82.5 Gimbal Motor: Smooth operation, equipped drive, large hollow shaft.

GL40 II KV82.5 Gimbal Motor has hollow drive board, supports CAN and PWM. Provides MIT, velocity-position, and velocity modes for versatile control.

Upgraded EM design reduces cogging torque from 1 cN·m to 0.7 cN·m, enhancing low-speed servo performance. Model ATG6CN displayed.

CubeMars GL40 II KV82.5 Gimbal Motor offers a Ø12.5 mm hollow shaft for enhanced compatibility, compact Ø46.1 mm design.

Black & White Dual Interface Free for debugging. XT30 2+2 combines power and CAN signal cables; CJT-3pin connects to upper computer for communication and parameter adjustment.

Equipped Upper Computer Easier Operation. Open current loop parameters & serial port baud rate settings. One-click motor parameter recognition. Various working modes, flexible upper computer page selection. CubeMars Tools interface displayed.
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