A.o.A pakwheelers, my Honda City left rear wheel hub broke almost three months ago and i had to replace with a new one but today the new one start making noise and after through inspection the mechanic found it to be completely broken i.e. almost all of the ball bearings were broken and with disassembly most of the ball bearings fell on ground, it was a new wheel hub but still it failed within three months of use. What could cause it to fail in such a short span of time. I am little worried about a new one fitted today.