DC motor with encoder

Hi guys,

I am creating a POV Globe display. It needs to be spinning fast and I'm currently searching for an appropriate motor. I'm wondering if there is such a thing as a DC motor with an inbuilt encoder?

The main reason for me asking here is because I haven't been able to find such a thing. I've found stepper motors but they're too slow for the project. DC motors would be ideal but I'm not sure if they come with inbuilt feedback to allow me to control the speeds.

Could you tell me:
1- is there such a thing as DC motors with encoders inbuilt?
2- if not, do you have any alternate suggestions as to what motor would be good for this project?

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