It is a good idea but I don't think the bearing design/quality can be put in relationship. As a mechanical engineer I have to choose bearing sometime and it is my responsibility to choose the right one that match my application. They just screwd the design deeply and they are ignoring it. It's already a miracle that the bearing did last 42k.
The use of a bearing was just a bad choice as it is impossible to quantify the play of it and plan a replacement before failure happens. A bearing has an L10:
Bearing Life Estimation - load and life calculations - Pacamor Kubar Bearings
Greg
Threaded Mode
