Bearing sizes for electrical motor were (2015 i3 REX)
6006 and 6306 and it were the smaller of the two that failed.
Please be aware when selecting bearings the tolerance and rpm, due to it being relativity high for the bearing size, up to 11300 rpm.
The bearings i selected were:
6006 2RZ Deep...
The powerpack is on a pallet now and the new bearings are in their way. Started the process of a reasonable DIY dissasembly/assembly method. (as ushual with a PMSM motor, you will have to fight the permanent magnets magnetic fields doing this). WIll try to document the procedure for future...
Had a link towards a russian guy who documented the bearing change (poorly) on youtube. If it worked correctly after the change i do not know. The critical part is the rotor position feedback sensor, should also be whats calibrated, but he seemed to have just marked the position (unsure if it is...
My 2015 i3 have started to develop a mechanical wine after 163000km, after it bit of digging around on the internet it seems most likely candidate are the bearings in the motor. Due to being a mechanically savvy cheapskate the question of replacing them instead of the entire unit occurred.
Have...