That method was used for decades with tape decks and record players where they used a 110V motor and used the transformer to run it. You need to have the power use of the motor, and have a transformer with a higher power rating than that for it to work well. EG you have a 120V 10VA motor, and a transformer with a 12V 4A secondary ( 48VA) so you can safely use the motor with the transformer, provided you remember the secondary now no longer can deliver the 4A, but is now limited to delivering 48-10=36VA, so now you can only draw 3A from it. Scale accordingly for your motor and transformer and see if it works.