CubeMars RO80 KV105

The RO80 is a frameless outrunner torque motor. Its aluminum alloy body protects it against impact and corrosion.

Key features

• Ultra-low cogging torque. Roughly halved compared with motors in its class, so low-speed rotation is noticeably smoother.
• Wide hollow shaft. Plenty of room at the center for cables and shaft integration.
• Interchangeable shaft. By changing the shaft, the same motor fits different mechanical interfaces.
• Hall and temperature sensors. Position and temperature feedback come from inside the motor.
• Aluminum alloy body. Provides impact resistance and corrosion protection.

Applications

Typical applications include exoskeleton robots, collaborative robot arms, medical devices and aerospace applications.

Is it enough for your project?

The RO80 is not an actuator but a frameless torque motor. The bearing, encoder, driver and, if needed, the gearbox are part of your design. That is why it is chosen for direct-drive joints, by teams building their own actuator and in projects where every gram counts.

If 1.3 Nm continuous and 4 Nm peak torque is not enough for direct drive, the motor is paired with a gearbox. For example, with a 10:1 planetary gearbox you get about 13 Nm of continuous torque at the output, excluding losses. Thanks to its low cogging torque, low-speed rotation is smooth, which makes a difference in precision joints and camera equipment.

How it compares to similar models

• RO80 Lite KV105. Gives the same 1.3 Nm rated and 4 Nm peak torque at 265 g and 17.7 mm tall, so it is thinner and lighter. It has no Hall or temperature sensor.
• RO100 KV55. About three times more powerful with 4 Nm rated and 12 Nm peak torque, weighing 710 g.
• RI85-PH KV85. An inrunner alternative with 2 Nm rated torque, weighing 411 g.

Frequently asked questions

Is the driver included?

No. With frameless motors the driver, encoder and bearing are chosen by the user. You need a 48 V FOC driver with Hall input. Our technical team can help you choose a suitable driver.

What does the outrunner design give you?

Because the rotor turns on the outside, you get more torque at the same diameter. The wide hollow shaft lets cables pass along the axis.

Which sensors does it have?

Hall sensors and a temperature sensor are inside the motor and provide position and temperature feedback.

What is in the box?

Along with the motor you get a Ø1.8 × 8 mm locating pin and six M4 × 6 mm screws.

In the box

• RO80 KV105 frameless outrunner torque motor
• Ø1.8 x 8 mm locating pin
• M4 x 6 mm screw (6 pcs)

Box size 137 x 134 x 74 mm.

Integration

In frameless outrunner motors the rotor turns on the outside, which gives more torque at the same diameter. The flange, bearing, encoder and driver are designed by the user. Thanks to the wide hollow shaft, cables can pass along the axis.

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

Shipping cost and delivery time to your country are shown at checkout. For models not listed in stock, ask our technical team about the lead time.

To start a return, contact us through our technical team. The product must be unused, undamaged and in its original packaging.

Return conditions for international shipments are confirmed before purchase.