Torque Hinge > Curl Structure > Curl Structure - Single Type
Curl Structure - Single Type
Moment hinges, also known as friction hinges, are free to turn and stop within a set angle.
The wrapping structure generates the required torque through the physical interference when the metal sheet is wrapped around the axis.
Advantages:
The diameter is smaller than the Cam structure.
Disadvantages:
The torque adjustment range is small and the mold trial period is long..png "Roll-wrapped Torque Hinge Description")
The diameter is smaller than the Cam structure.
Disadvantages:
The torque adjustment range is small and the mold trial period is long.
Example image: 
General tests:
Full Angle Torque Test
Life Test
Drop Test
Abnormal Sound Test
Spray Salt Test
Torque peak test
Idle test