| 摘要 |
<p>PROBLEM TO BE SOLVED: To easily convey even a large conveyed object which cannot be conveyed by a carriage, with a small number of persons.SOLUTION: A bearing device includes: a body 2 having an annular rolling groove 3 forming an opening portion on at least a part of a side wall, an accommodation spatial portion formed in parallel with the rolling groove 3, and a cut portion for communicating the rolling groove 3 with the accommodation spatial portion; a plurality of spherical bodies 4 of which a part of an outer peripheral face is exposed from the opening portion of the rolling groove 3, and successively arranged in the rolling groove 3 so that they can be circulated while kept into contact with each other; and a rotary body 5 rotatably supported on a position where the part of the outer peripheral face exposed from the cut portion, is kept into contact with outer peripheral faces of the spherical bodies 4.</p> |
