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First, the correct choice in the choice of rotor-bearing model. Double row radial spherical roller bearings with bearing capacity, aligning performance advantages in the choice of when the use of such bearings as rotor bearings. In addition, the calculation of selected bearing life of 5000 ~ 10000h appropriate.

Second, to improve the composite crusher bearing force status. The role of impact load on the bearing depends on the impulse acting on the rotor and bearing support flexibility. Increased bearing support flexibility, will reduce the role of impact loading on the bearings. To this end, we added in between the bearing and the support frame of the appropriate thickness of rubber sheet in order to improve the bearing support flexibility. Added a rubber sheet, increasing the support flexibility to absorb part of the vibrational energy, to improve the bearing force status, to achieve the purpose of extending the service life.