BandA wrote: ↑Sat Mar 07, 2020 11:13 pm
CRRC has made a lot of cars in China, why hasn't this problem shown up before?
It may have, just the information coming from a state owned foreign railway about a state owned/backed manufacture of their equipment, maybe not forthcoming. Disposable razors, they can pump out cars at will, where as US transit/railroads expect a 20+ year life out of equipment.
Granted I haven't been thrown under a train lately, I remember some form of pad that is between the bolster and the car frame, think of it like cartilage. If that wears out before its time then metal on metal and circles become oblongs, squares be circles and so on. The long and the short of it is either a poor design or poor manufacturing of parts.
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