2015年11月17日星期二

thrust ball bearing assembly has two key points

thrust ball bearing assembly has two key points. One is the cage and the ball nip quality control, and the other is the rear bearing assembly nominal height T of control. In addition, since the shaft ring, seat ring can be separated, bring a management problem. Bearing parts is to prevent mix. M-type punch holder assembly flange using molds. After lamination requires rotating flexible ball in the hole pocket, but can not be detached from the pocket, and technical procedures to check the ball runout in the pocket hole. Solid cage deep imprint weight make small balls runout, and embossed with a raised portion to maintain the connecting frame is too small and lack the intensity, prone to the phenomenon out of the block, causing the cage scrapped. Small thrust ball bearing race ring and the shaft diameter size difference is small, there is no significant difference between two sets of groups. In order to prevent the phenomenon of mixed units, namely a set of bearings fitted into a set of circumstances occurred pottery sleepy all the races or both axes Circle. This need to take certain measures. Usually when the aid will be drawn together sets of auxiliary tooling ring, seat group distinction, or at a nominal sampling checks with an inner diameter of plug diameter size, in order to check the convenience diameter, height before the race put the following axis coiling above. If the inner diameter of the seat Court obvious quenching oxidative color or without grinding, there is no need to examine the inner diameter, it can obviously see the difference between the shaft due to race, easily mixed sets. After thrust ball bearing assembly required T for nominal height measurements confirm a hundred qualified. When measured by the height of the block or standard calibration, and to measure the load required to rotate dozens bearing, be sure to achieve the minimum height.

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