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Quasi Direct Drive Actuators

CubeMars AKE40-6 KV90 Quasi Direct Drive Actuator

CubeMars
China

The CubeMars AKE40-6 KV90 quasi direct drive actuator integrates a brushless DC motor with a 6:1 planetary gearbox in a Ø51 x 24.5 mm, 140 g housing. On 24 V it delivers 50 W of continuous power, draws 2.5 A rated and 8 A peak current, reaches 260 rpm rated and 330 rpm no-load speed, and holds backlash to 9 arcmin with 0.05 N·m backdrive torque, suiting exoskeletons and lightweight robotic joints.

Applications
Exoskeleton
Manufacturer Website
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Specifications

Rated Voltage (V)24
Rated Power (W)50
Rated Torque (Nm)1.8
Rated Current (A)2.5
Rated Speed (rpm)260
Peak Torque (Nm)5.5
Peak Current (A)8
No-load Speed (rpm)330
Reduction Ratio6:1
Weight (g)140
Diameter (mm)51
Length (mm)24.5
Pole Pairs14
KV (rpm/V)90
Phase to Phase resistance (mΩ)1660
Phase to Phase inductance (μH)950
Backlash (°)0.15
Ke (V/krpm)11.1

* Specifications are provided for reference. Please verify the latest specifications with the manufacturer.

Description

FAQ

Click "Manufacturer Website" to go to the brand’s official product page, where you can buy online or contact their sales team directly.
The low 6:1 ratio keeps the output highly backdrivable, so external force is transmitted back to the motor for accurate force sensing and compliance control — a key requirement for exoskeletons and lightweight robotic joints.
It produces up to 5.5 N·m of peak torque and 1.8 N·m continuous at 24 V, KV of 90 rpm/V. Match the supply and torque envelope to your joint design.

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CubeMars GL60 KV25 Gimbal Motor Gimbal Motors

CubeMars GL60 KV25 Gimbal Motor

CubeMars GL60 gimbal motor produces 1.75 Nm peak and 0.6 Nm rated torque at 230 g. Its 69 mm low-cogging direct-drive design supports larger camera payloads in professional gimbal systems.

Rated Voltage (V) 24Rated Power (W) 20Rated Torque (Nm) 0.6Rated Current (A) 1.35Rated Speed (rpm) 310
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The AKE60-8 KV80 offers 12.5 Nm peak and 5 Nm rated torque via an 8:1 planetary stage at 24 V, weighing just 260 g. Its quasi-direct drive design gives low inertia and compliance for compact humanoid and exoskeleton joints.

Rated Voltage (V) 24Rated Power (W) 95Rated Torque (Nm) 5Rated Current (A) 4.8Rated Speed (rpm) 180
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CubeMars AKE80-8 KV30 quasi-direct drive actuator delivers 30 Nm peak and 12 Nm rated torque through an 8:1 reducer on a 48 V supply. At 570 g, its low inertia and backdrivability suit exoskeletons, rehabilitation robots and legged joints.

Rated Voltage (V) 48Rated Power (W) 188Rated Torque (Nm) 12Rated Current (A) 4.8Rated Speed (rpm) 150
Details
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Rated Voltage (V) 24Rated Power (W) 50Rated Torque (Nm) 1.8Rated Current (A) 2.5Rated Speed (rpm) 260
Details
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The CubeMars AKE50-8 KV110 quasi direct drive actuator integrates a brushless DC motor with an 8:1 planetary gearbox in a Ø61.2 x 22.5 mm, 190 g housing. On 24 V it delivers 65 W of continuous power, draws 3 A rated and 9 A peak current, reaches 240 rpm rated and 320 rpm no-load speed, and holds backlash to 9 arcmin with 0.09 N·m backdrive torque, suiting wearable devices, robotic joints and colla···

Rated Voltage (V) 24Rated Power (W) 65Rated Torque (Nm) 2.5Rated Current (A) 3Rated Speed (rpm) 240
Details
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Rated Voltage (V) 48Rated Power (W) 700Rated Torque (Nm) 55Rated Current (A) 21Rated Speed (rpm) 120
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