Pass power to components on a high speed spinning motor
I would recommend a wireless charging solution as the probably cheapest solution. You could even embedd the receiver coil in your PCB. Or just buy ready to use transmitter and receiver. 

Edit: It is very unlikely that the relatively weak magnetic field (compared to the motor) of the wireless charger transmitter coil will affect the motor. It is a little dependent of the position of the coil. The magnetic field strength gets weaker exponentially with distance.

I cant really recommend any specific products here but there are of the shelf solutions of transmitter as well as Receiver modules if you dont want to develop something yourself. If you are aiming for a new development i would search for application notes of wireless energy transfer controller ICs (Qi standard etc.) as a starting Point.