The sharp edges of the slot, which is processed on the rear axle for anti loosening of the lock nut, will scrape the bearing bore surface, bringing about small chips and particles.

 
  • (2 )半轴轴端螺纹防松键槽侵入轴颈与轴承内孔配合段 ,导致键槽锐边在轴承内孔刮研 ,产生切削微屑 ;
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