VanMoof S3 motor – loose bearing balls on cable side
Hi! I’m rebuilding a VanMoof S3 front hub motor and ran into something unexpected.
When I separated the motor from the hub, several small steel bearing balls fell out from the cable/wire side of the motor. I also found a small C-shaped metal piece that may be part of a broken bearing cage/retainer.
Around the shaft on the cable side there is a rusty ring/groove that looks like it could be the bearing race.
Has anyone rebuilt this motor before and knows:
Where the balls should sit
What the C-shaped piece is
Whether the rusty ring is the bearing race
Whether this bearing can be replaced separately
The planetary gears look fine.
Photos attached. Any help would be greatly appreciated!
u/Fel1ius — 8 days ago