Siemens EQ 7 grinder motor brushes problem

Hello, I have a Siemens EQ 7 standing here. The grinder does not run. The error was also quickly found after I removed the motor. Rising water vapor has probably collected in the grinder housing and a spring, which should press the brush in place is rusted away.

Does anyone know where to get such springs? I have now googled ne hour, but nothing found. Would be a shame to have to throw away the engine because of such a small defect......

Thanks a lot

Daniel

Do you mean something like this, for example:
https://www.conrad.de/de/p/absima-motorkohlen-federn-20-mm-passend-fuer-modellbau-motor-thrust-b-spec-elektromotoren-239463.html

https://www.begadi.com/begadi-feder-fuer-motorkohlen-mamba-ultra-serie.html

yard, model sports store, model train store or a workshop for coffee machines would come to mind.
The latter throw defective grinders in the trash. A small contribution to the coffee fund

Hello and thank you for the reply. Yes I will just stop by Conrad and take the intact spring as a model...... Thanks!