1. The base hole system is selected for the mutual cooperation between angular contact ball bearing and shaft, and the base shaft system is selected for the mutual cooperation between non-standard angular contact ball bearing and casing. The standard tolerance and rotation accuracy of angular contact ball bearing must meet the requirements of gb307-84.
2. The motor shaft matched with the angular contact ball bearing and the inner hole of the angular contact ball bearing box shall meet the requirements of gb1031-83, and the surface roughness Ra value of the motor shaft shall be lower than 1.6 μ m. The surface roughness Ra of the inner hole of the angular contact ball bearing housing is lower than 2.5 μ m.
3. When making angular contact ball bearing ring and roller angular contact ball bearing with GCr15 and zgcr15 steel, the strength of sprocket and roller angular contact ball bearing shall be 61-65hrc; When GCr15SiMn and zgcr15simn steels are used, the strength value shall be 60-64hrc. The strength inspection method and strength symmetry of the same part shall meet the requirements of jb1255.
4. Check that the axial clearance and radial clearance of angular contact ball bearing meet the requirements of gb4604-84.
5. The raceway of the inner and outer rings of the angular contact ball bearing shall not fall off and be relatively seriously damaged. The outer ring of the angular contact ball bearing shall not be broken, the outer ring of the angular contact ball bearing shall not be broken, the steel ball shall not be damaged, the more serious deformation of the angular contact ball bearing shall not be damaged, there shall be no ball angular contact ball bearing, ball angular contact ball bearing, abnormal noise and rotating vibration, And must stop slowly at the end.
6. For tapered roller angular contact ball bearing with dimensional tolerance of grade C, under the action of certain load, the contact accuracy between roller angular contact ball bearing and swing ring dovetail guide rail shall be checked by coloring method. The contact mark shall be continuous, and the contact length shall not be less than 80 percent of roller bushing.
