Ariston QDeck replacement motor

I have a Ariston Qdeck with a 12V motor that is toast due to my father using a AC adapter for it...
So, trying to find a spare is not going well, the motor has the marking SHR2R - 50-8Y11B, and I cannot find anything regarding this motor, no specs nothing. If anyone has any info on this it would be most appreciated!

I may be able to fit some replacement motor I guess, possibly with som DIY addings as neccessary. But for starters I need to find out what rpm the previous engine was running at.
The pulley is 5mm, and the turntable belt wheel is 180 mm. This calculator would suggest the motor speed rpm is 1188 for a 33 rpm output.
http://mgfic.com/rpm_calc.asp