I have a Bafang SWXK2 e-bike front hub motor. It has been use for 7 years, about 10 000 km ridden and has worked well so far. But now it is making a clacking noise.
- Clacking noise synchronized to rotation.
- Loudest with weight on the bike, but audible even with bike upside down.
- Happens both with motor freewheeling and with motor engaged.
- Noise disappears if I loosen the left side nut (opposite side of cable exit).
On the side with problem, I can see a DC6001-2RS bearing inside the motor, against which the anti-rotation washer rests.
Here is a video of it:
I'll try to open it later and update whether I figure out anything. But if anyone has good guesses of which spare parts to get, or can find any maintenance information, that would be greatly appreciated!