MintJulep (Mechanical) I almost forget about your question, and I don't have an answer yet. All I can guess at this time is that the plate is not grooved in the underside, so the designer expects it to move to some degree. For whatever reason he did not want it to have a tight fit either. Also...
Thank you everyone for your help in brainstorming this failure mode. You should know that for years I have monitored forums similar to this but never posted a question. I find it fascinating and helpful to discuss and brainstorm with engineering colleagues. Again, thank you all.
TugboatEng...
electricpete, it was your older thread what motivated me to ask in this forum. I looked at the ratchet in that thread and it intrigue me. Let me start by answering your questions.
1. For your situation, were the pin covers found that way partially dislodged?
Yes, they were found as you see...
We own 4 of these motors described below. The motors are tripping due to high vibration. Last week we found that the ratchet (NIDEC's design) is coming apart. This ratchet design uses pins to lock the shaft in place to prevent it from backspin.
1. Has anyone experienced this failure mode before...