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Thrust Ball Bearing Assembly Has Two Key Points
- Jul 12, 2017 -

  Thrust ball bearing assembly has two key points. One is the control of the quality of the cage and the ball, and the other is the control of the nominal height T after the assembly of the bearing. In addition, due to the shaft ring, seat can be separated, bringing a management problem. Is to prevent imported bearings parts mixed. M-type stamping cage using crimping die. After pressing the steel ball in the pocket to turn flexible, but can not fall off from the pocket, and technical procedures to check the ball in the pocket hole in the amount of movement. Solid cage pressing pressure too deep will make the ball ball movement is small, and the embossed convex part of the connection with the cage is too small and insufficient strength, prone to block the phenomenon, causing the cage to scrapped.

  Small thrust ball bearing seat ring and shaft diameter diameter difference is very small, there is no significant difference between the two groups. In order to prevent the emergence of mixed sets of phenomena, that is, a set of bearings into a set of ceramic traps are the seat ring or are the case of the shaft. This requires some action. Usually with the help of auxiliary tooling will be zoning, seat group to distinguish, or in the sampling of the nominal height before the diameter check with the diameter of the inner diameter, in order to check the inner diameter is convenient, put the seat down, the shaft placed above. If the seat of the cabinet has a significant hardening of the oxidation of oxidation or no grinding, it is not necessary to test the diameter size, can clearly see the difference between the shaft and the seat, not easy to mix. Thrust ball bearings need to be assembled after the nominal height T to be measured, confirmed that the lilies. When measuring, with a high degree of block or standard difficult to calibrate, and to measure the load, the bearing should be rotated ten times, be sure to reach the minimum height.

  When the thrust ball bearing in high-speed operation, the ball and raceway radial plane of the contact angle will be affected by centrifugal force, causing the ball relative to the raceway sliding. This sticking wear causes damage to the bearing. In order to prevent such damage, must ensure that the thrust ball bearing by the minimum load, see formula 1 or formula 2, take the larger calculation.