Move drive gears to install dampers to stepper motors

[DasMatze]

Hi!

I bought some dampers for the stepper motors without thinking about the press-fitted drive gears on them.

Is there a good way to pull them out without buying a 20€ gear-puller for this one-time purpose?
Maybe I should ask: can they be moved at all?

Thank you in advance!

[lion]

As far as I know, the a20m motor is not suitable for installing a shock absorber, because its motor rotor cannot freely expand and contract.
Regards