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Anyway, the new bearings are now finally replaced (workshop did it). I needed a very special tool to get the faulty bearing off: Kukko 43-001 Before I install everything back, I would like to grease the metallic rotor shaft/gear. The rotor shaft/gear will when installed back be working...

@K PierreR I never got any error code on mine bike display. Just the noise. My faulty bearing was in healthy condition from the outside. Could feel with the fingertip when turning it around that it was broken. Yours look really damaged.

It would be ideal if the same person do all the job, that is what I hope to find. I have already bought a replacement bearing: CODEX EXTREME 628 2RS C3 P6Z3V3 / RLQ2 (what will be replaced on the picture) Also have a second bearing on the same shaft on the other side (not seen in the picture)...

Yes the gap is 1mm surprisingly, I have measured it a several times now. Pullers jaws won't fit underneath due to its thickness (where you have marked with a red dot) Thanks for your advice, I will contact some local machine shops to see if they can help me.

Thanks guys, I have found a workshop that will pressfit the new bearing properly. However, they didn't have any tools to pull it out.. The room underneath the bearing is only 1mm. Of all the bearing tools out there, I have only found 1 that have 1,5mm jaw thickness which will not fit in...

Hi Perfect, that was a great tool indeed! The diameter is 24mm so it should fit without problem. How about installation of the new one? Just use a rubber hammer?

Hi I've just unscrewed my bafang mid center motor and found that a faulty bearing is causing a loud noise when the engine is assisting with power to my ride. Before I do anything by myself, how easy/hard is it to change it? Is there any special tools needed? Or should I let a workshop do this...