| 摘要 |
<p>PURPOSE:To prevent a bearing from its seizure, by constituting either an outer ring or an inner ring of a bearing ring and loose ribs and forming a low friction layer on at least an inside surface of each loose rib. CONSTITUTION:An outer ring 4 comprises a bearing ring 8 and loose ribs 9 which are attached coming into contact with both side surfaces of the bearing ring 8. The loose rib 9 forms its internal diameter and external diameter smaller than the internal diameter and the external diameter of the bearing ring 8. The loose rib 9 is mounted so that it can freely move in the axial direction by guide pins 10 protrusively provided in the both side surfaces of the bearing ring 8. While the loose rib 9 forms on its internal peripheral surface and peripheral surface a low friction layer 11, causing friction resistance, generated in contact surfaces with the end surface of a roller 7 and with a device main unit 1, to be reduced.</p> |
