Help - Grease able Pivot Shafts

It looks like the shaft is too long - if you look at where the threaded section starts on the new shaft versus the original shaft, it is off by quite a bit. Like others have said, you ran out of threads and the shaft broke.

I'm guessing that you got the B/E shafts by accident. It's possible that they were mis-labeled. This would explain the difference in length.

What's the overall length of the shaft that broke? Or, since it may have elongated - the shaft on the other side that didn't break? Can you post a side-by-side of the unbroken shaft and the original shaft, with the two of them lined up at the flange?