Check for any foreign objects in the tub drain holes
Greetings:
On a couple of occasions, we have had clicking noises in our front load washer (Maytag Epic 9700) that were caused by foreign objects trapped in one of the tub drain holes (wire, a thin piece of plastic, a nail, etc.) As the tub rotated, the object came into contact with the outer tub and made a clicking sound. Each time, removal of the object solved the noise.
Hopefully it is something simple like that and not your tub bearings, etc.
Good luck,
Andrew S.