Comment by level3

This might be pedantic, but your rewriting seems to assume intent where there may have been none. The phrase "in such a way" is adverbial, modifying "surmounted" in the original, but your "designed" is adjectival, modifying "casing."

Since the casing is supposed to be malleable, it might not have necessarily been designed to line up the bearings, and it was only through a particular way of surmounting the casing that got them lined up.