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Automated arm therapy

The Hocoma ArmeoPower is a rehabilitative therapy robot designed to help patients suffering from impaired arm and hand functions caused by stroke, traumatic brain injury and other neurological problems. These robots improve exercise therapy significantly by extending exercise time and intensity and can be adapted to the different abilities of the individual patients.

Zero backlash for the success of therapy

The therapy robots are equipped with high ratio and zero backlash gears from Harmonic Drive AG. In addition to the active mode, the therapy device also allows a passive movement - an important prerequisite for getting one step closer to recovering the motor skills.


HFUC-2UH Series Units are available in thirteen sizes with gear ratios of 30, 50, 80, 100, 120 and 160:1 offering repeatable peak torques from 9 to 9180 Nm.

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High demands on the robot joints

Zero backlash, highly compact and smooth running are key features for the HFUC Series Gears used in the robot joints. Another key consideration is that the gear can perform well when operated in the passive mode. The result is an attractive design in a compact package capable of high torques in the shoulder and elbow joints.

High tilting capacity integrated cross roller bearings

The HFUC-2UH Gear Units combine the HFUC Component Sets with an integral high load capacity, tilt resistant output bearings to form a compact, high accuracy Gear Unit. This often enables direct mounting of heavy payloads without the need for further support.