Short phrase English to Latin translation request.

If anyone could please help me translate this short phrase into Latin, I would be very appreciative. The phrase is "the endless circle" or just "endless circle". It is a martial arts concept.

circle = orbis but the endless part is a little harder.
endless =
infinitas -atis f. [infinity , endlessness].
infinitus -a -um [infinite , unbounded, immense]; n. as subst., [infinite space]; of time, [endless, unceasing]; of number, [countless]; also [indefinite, general]. Adv. infinite, [infinitely, endlessly].
What I am trying to convey is a circle that goes on forever. "goes on" in the sense of: continues, expands, contracts, etc…. infinitly.

So I am thinking it would be "Orbis Infinitus" or possibly Orbis Infinitum, hmmm? Obviously a little knowledge is a dangerous thing.
Trying but stuck.
Thanks in advance...