To provide a free ball bearing which does not generate a static electric barrier.
In the free ball bearing 1, many small balls 3 are arranged on a hemispherical recessed surface 2a formed in a body 2, one large ball 4 is put on it and held rotatably in all directions, and a cap 5 for preventing the run-off of the large ball and small balls is disposed. A conveying table or the like is constituted by arranging many balls on a base. At least the large ball 4 is made of conductive or half-conductive resin having a surface resistivity of 103-1010 Ω/square. The other part may be made of metal. When a charged conveyed article is loaded, the charge of the conveyed article does not move instantly and moderate electricity elimination is performed. Therefore, the static electric barrier of a loaded matter can be prevented.
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