Wobbly MXUS 3k. Bent axle? Bearings?

Electric Motors and Controllers
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vex_zg
100 W
100 W
Posts: 177
Joined: Mar 06, 2016 6:07 pm

Wobbly MXUS 3k. Bent axle? Bearings?

Post by vex_zg » Feb 14, 2018 8:47 am

My mxus is wobbly which is manifesting itself as side covers wobble when spinning, and the disc rotor also wobbling (the disc is straight, tested on another hub). The 225mm disc is wobbling up to 1mm amplitude laterally.

The motor was not used much, 500km. No big hits, jumps. The bike once fell on it's side and the axle end hit the ground perpendicular to the ground which in my view should not have bent the axle because the hit was on the axle side. The wheel rim/tyre did not hit the ground at that time.

I have new spare axle, sidecovers, bearings.

What is your best guess about the root cause of the problem?

How is a bent axle normally manifesting itself? I'd like to avoid fiddling with the axle change unless it is actually the culprit.

Thanks

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