CubeMars AKE50-8 KV110

The AKE50-8 KV110 is a quasi-direct drive actuator that combines a brushless motor with an 8:1 planetary gearbox. Its 61.2 mm diameter housing is only 22.5 mm thick, making it the thinnest model in the AKE family. It delivers 7.5 Nm peak torque from 190 g. The manufacturer recommends it for exoskeletons, wearable devices, robot joints and collaborative robot arms.

Key features

• Thin, light housing. At 22.5 mm thick and 190 g, it saves space where the actuator has to sit beside a joint or close to the body.
• High torque density. 7.5 Nm peak torque gives a torque density of 39.5 Nm/kg.
• Low backlash. Gearbox backlash is 9 arcminutes, about 0.15 degrees.
• Low backdrive torque. A backdrive torque of 0.09 Nm provides a responsive mechanical basis for real-time torque sensing and active compliance control.
• Quiet, durable gearbox. Optimized gearbox components reduce operating noise and keep it stable in continuous operation.

Applications

Typical uses include lower and upper limb exoskeletons, wearable assist devices, wrist and elbow joints of collaborative robot arms, and lightweight robots that must interact safely with people.

Is it enough for your project?

The AKE50-8 delivers 2.5 Nm continuous and 7.5 Nm peak torque. For example, a 1 kg load at the end of a 20 cm arm needs about 2 Nm of static torque (1 × 9.81 × 0.20). That load stays within the actuator's rated torque.

It runs on 24 V, with a rated speed of 240 rpm, a no-load speed of 320 rpm and a maximum continuous power of 65 W. In the manufacturer's temperature rise test it ran at 233 rpm at 2.5 Nm and 220 rpm at 3 Nm. The output bearing has a dynamic load rating of 1,100 N and a static load rating of 840 N.

How it compares to similar models

• AKE40-6 KV90. With a 6:1 reduction it gives 1.8 Nm rated and 5.5 Nm peak torque. It is lighter at 140 g and narrower at 51 mm, but slightly thicker at 24.5 mm.
• AKE60-8 KV80. With the same 8:1 reduction it gives 5 Nm rated and 12.5 Nm peak torque, weighs 260 g and measures Ø69 × 25 mm.
• AK45-10 V3.0 KV75. A similar torque class actuator with 2.5 Nm rated and 7 Nm peak torque, with the driver board and dual encoders integrated in the housing. It weighs 262 g.

Frequently asked questions

Is the driver included?

No. The AKE50-8 consists of the motor and planetary gearbox and has no driver board. The box includes a φ6 x 2.5 mm sensor magnet for an external encoder. Our team can help you choose a driver and encoder for your project.

AKE40-6 or AKE50-8?

If 1.8 Nm of continuous torque is enough and every gram counts, the AKE40-6 is the better fit. If you need a bit more torque and a thinner housing, the AKE50-8 stands out. Both have 9 arcminutes of backlash.

Can it be turned by hand?

Yes. Backdrive torque is 0.09 Nm, so the joint moves easily when unpowered.

How loud is it?

According to the manufacturer's measurement, 65 dB at 65 cm from the motor.

In the box

• AKE50-8 KV110 quasi-direct drive actuator
• φ6 x 2.5 mm sensor magnet

Box size 140 x 137 x 77 mm.

Related products

Our team can help you choose a driver, encoder and mounting solution.

Products in stock are dispatched within 3 business days from our warehouse in Turkey.

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