HCSZ Thrust Ball Bearing 51318 with CE ISO certificate

There are two key points in the assembly of thrust ball bearings. One is the control of the quality of the cage and steel ball pressing, and the other is the control of the nominal height T after bearing assembly. In addition, due to the fact that both the shaft and seat rings can be separated, there is a management issue of preventing mixed installation of imported bearing parts.

The M-type stamping cage uses a curved edge assembly mold. After pressing, the steel ball is required to rotate flexibly in the pocket hole, but it cannot fall off from the pocket hole. The technical regulations should check the movement of the steel ball in the pocket hole. Pressing the solid cage too deeply can reduce the movement of the steel ball, and the connection between the embossed protrusion and the cage is too small and the strength is insufficient, which can easily lead to the phenomenon of falling blocks and causing the cage to be scrapped.

The difference in inner diameter between the seat ring and the shaft ring of a small thrust ball bearing is very small, and there is no significant difference between the two sets of bearings. In order to prevent the occurrence of mixed sets, it is found that both sets of bearings are seat rings or shaft rings. This requires certain measures to be taken. Usually, when fitting, auxiliary tools are used to distinguish the extraction ring and seat group, or an inner diameter plug gauge is used to check the inner diameter size before sampling the nominal height. For the convenience of checking the inner diameter, the seat ring is placed below and the shaft ring is placed above.

If the inner diameter of the seat ring has obvious quenching and heating oxidation color or is not ground, there is no need to inspect the inner diameter size. The difference between the shaft ring and the seat ring can be clearly seen, and it is not easy to mix sleeves.