Converting axial pressure to centripetal force

[dhaval trivedi]

I am working on a case where a spring foce is applied to the center of wheel . the wheel is pulled by a motor with a rope tied on the wheel.

I know the spring force in the centere of the wheel.
how can i know the centripetla force exerted by it

 

[Baluncore]

I do not understand how you drive the wheel or how the spring is mounted.
Can you please provide a diagram of the setup.

 

[dhaval trivedi]

 

[dhaval trivedi]

The Spring applies some load to prevent the wheel from rotating lie a brake
Motor pulls the wheel in front direction.