One concern should be the operating temperature of the bearing, right? Vaseline has a melting point just above body temperature, if your application will not generate that much heat so that the components do not reach a metal temperature of melting degree of the vaseline than there shouldn't be...
I can give some clue for engines.
When the engine is certified and you want to change something from the certification baseline, you have to prove that this change will not effect any of the certification items.
Step.1: You should prepare a report explaining why you are changing a part, what is...
I can tell what is done for airplane engines when it comes to turbines, methodology should not be much of a different (I guess). Assessing such cracks means taking the responsibility of any accidents, deaths if not done without enough knowledge. Determination of limits for defects (cracks...
Hello,
The question from Ed is really nice and the replies made me think, let's say re-think what we are doing in our design. Briefly to explain: we have a lug in which a bushing is installed to the lug with an interference fit. Bushing itself is coated with some kind of dry lubricant that is...
An action raised during an audit for AS9100 was about this issue, specialist requested to see the date on the drawing and what we had was the date when the drawing is uploaded to the system. However he was not satisfied with it, because instead of initiation of the drawing "release" date is...
I am imagining a situation where you have a problem with one welding detected by NDE after heat treatment, that would be a mess. Some materials can not be heat treated again and again, so you will not have a second chance with the hardware. If you are making heat treatment to expensive...
What about the surfaces in contact with the shaft? If there is a problem with pre-load usually there are some fretting evidences on shaft/bearing contact area.
Cheers
