Wheeled luggage case

An axle-free wheel comprising:

• a. an outer rim member having a ground interface on an external surface thereof and an outer ball race or rolling race on an inner surface thereof;
• b. an inner rim member having an inner ball or rolling race on an outer surface thereof;
• C. rolling means distributed between said inner and outer ball races by a separator;
• and
• d. a plurality of bayonet tabs and a bayonet plate configured for attaching said axle-free wheel to an object to be transported,
• wherein the plurality of bayonet tabs and the bayonet plate are configured to mount to a bearing plate on the object, and wherein the bayonet plate includes a plurality of grips coupled to bayonet tabs.