@mrfailure (Materials)27 Dec 19 15:39
Could the threads have stripped during installation due to improper alignment or cross-threading?
no, it was not happened duiring installation, it was happened one year after installation.
@EdStainless (Materials)
What does it screw into?
motor shaft, and its surface hardness of the internal screw is about HRC60, nitriding processed.
What load is on it? tigtening curve below:
hi,
We have a screw-plug（forgive me my poor English） fractured after about one year in use. the location of the fracture is at the fillet . after disassemnlying the transmission, it was found that the screw thread was completely stripped out as the below photo shows(this is another failed part...
