| 摘要 |
The invention relates to a bearing comprising an outer ring (2), an inner ring (3) and bearing parts (4) such as balls or rollers, the inner circumference of the outer ring and the outer circumference of the inner ring each having an arc-shaped groove (21, 31), the surface of said grooves each having capillary orifices (22, 32). The bearing parts (4), arranged between the grooves can roll between the rings (2 and 3) and have, on their outer surfaces, capillary orifices (41). Oil, or grease, applied onto the bearing parts (4) and grooves (21, 31) penetrates into said capillary orifices (22, 32 and 41) such that, when the bearing is moving, the oil comes out of said orifices to form a film on said contact surfaces and renders the bearing self-lubricating, with no oil ejection for high-speed rotation.<IMAGE> |
