Originally Posted by
Diversification
The refurbishing of the grarbox, and probably the epicyclic gears too, makes me think of old stories about bad spare parts being resold as new. The husband of by secretiry died as pilot in an accident over the North Sea when a bolt broke making the plane lose its vertical stabilser.
I think this issue has been mostly rectified at least in the 'civilised' parts of the world. What I do wonder is if while changing/disassembling the MGB a mishandling could cause damage to the outer race of a bearing/epicyclic gear?
Roller bearings are normally very robust when running and very fragile against shocks while being static. Could a ding while changing/disassembling/handling the MGB cause a small damage/dent in the race that then started to propagate? How is this prevented, especially in such a combined design with hardened surfaces on both sides (inner and outer side)?