In the mechanical production equipment, according to the accessories designed in different structures, tools and equipment with various frictions in rotation are added, so that the effect of large mechanical rotation control compression capacity can be improved, the effect of larger running compression capacity can be increased in different contractible rotating materials, and the characteristics of large mechanical compression control bearing force can be met. 

   XC differential shaft maintenance in different thickness of accessories, can increase the steel rotation use principle faster speed force, then in the metal mechanical control fixed position, it is necessary to carry out maintenance treatment according to different principles, improve the use of polyester parts are not easy to occur shrinkage rebound.

   Friction independent operation controllability

   In the rotating steel parts, the flexibility of the rotating operation of the bearing can be improved, so in the mechanical parts with different thicknesses or widths, the effect of smoother operation of different machines can be improved, and the effect of higher packaging production efficiency in the mechanical rotating process is improved.