The power spring is made of strip material and is usually installed between the inner shaft and the housing body, generating torque between the inner shaft and the housing body.
The number of rotations is self-determined and can be up to 50. Different winding techniques endow the material with the required curvature that matches the torque rotation requirements.
There are many similarities between power springs and clock springs, but they have a larger working range in terms of the number of turns.
Power springs can be used to wrap cables, hoses, seat belts, etc.