A piece of the bearing cage is broken; could someone please help analyze this?
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I have a stationary pump whose bearing cage on the non-driving side has a broken piece; upon visual inspection, the bearing shows no significant wear. I would appreciate it if everyone could help analyze the cause
My judgment of the reason is: the diameter of some of the steel columns in the bearings is out of spec, which generates impact stress during operation with the cage, exceeding the maximum contact stress capacity of the cage. It is a problem related to the quality of the bearings. This occurs most easily, especially in deep groove ball bearings. I’m just throwing out some ideas to encourage others to share their different perspectives
The issue of axial force raises the question of whether it is possible, for reference.
Looking at the shaft end, bushings, and retainers, there are signs of high temperatures. The shaft end and bearing nuts appear to indicate a lack of oil during operation. It seems that this pump is quite important; how can the bearings of such a pump be designed to be mounted on bushings?
This is the design issue from the beginning; when we checked, we could see oil mist. Where did you notice signs of low oil level?
This photo isn’t in its original state; we wiped it…
We also plan to have the bearings inspected. Is this a one-off issue? We use bearings from this same manufacturer
Famous-brand bearings are counterfeited; our company has encountered this issue many times
How can one determine if a bearing is fake? How can it be identified?
It’s impossible for users to identify them; the only option is to avoid using bearings from this manufacturer