SJH38-2222B one-word shaft, the structure is precise and small, the spring force of the mobile phone shaft spring can be adjusted according to the actual size, suitable for the small space of the mobile phone, the technical parameters of the one-word shaft are as follows: span>

1. Spring elasticity: According to customer needs; 

2. Life test: 60,000 times, the spring force attenuation value is not more than 70% of the initial value; 

3. The hinge is turned 180°, and the assembly is irrespective of left and right.

4. After the hardware shaft is assembled to the whole machine, no jams, abnormal noise, etc. are not allowed;

The application of a hinge in a flip phone