| 摘要 |
<p>To provide a ball-and-roller bearing having a load capacity higher than the conventional roller bearing, an improved rolling performance without introducing a large sliding friction, and further, suitability for high-speed rotation developing no seizure and the like. A ball bearing wherein component members (20, 20') each include an inner race (1, 1'), outer race (2,2'), a plurality of rollers (3, 3') and urging means (7), out of the above members, the inner races (1, 1') and the outer races (2,2') have univalent hyperboloid-of-revolution orbital planes (1a, 1a', 2a and 2a') about one axial line (6), respectively, the aforesaid rollers (3,3') rolling in linear contact with the aforesaid orbital planes are provided so as to incline at a predetermined angle to a surface including the aforesaid axial line (6), two of the aforesaid component members (20, 20') are disposed in an opposed relationship to each other in the direction of the aforesaid axial line (6), in this case, the aforesaid urging means (7) act on the inner races (1, 1') or the outer races (2,2') in the direction of narrowing the intervals between the inner and outer orbital planes, and the outer races (2, 2') or the inner races (1, 1') which are not acted on are fixed. <IMAGE></p> |
