| 摘要 |
A bearing system, which may be used particularly for hot-air valves (10), comprising a fixed roller bearing (32) and a floating roller bearing (34) is provided wherein a spherical shape of the inner raceways (54, 84) of each bearing, a spherical shape (48, 78) of the rollers (46, 76) of each bearing, a spherical shape of the fixed bearing's outer raceway (58) and a cylindrical shape of the floating bearing's outer raceway (88) may enable the bearing system to compensate for all mechanically and thermally induced deflections and linear expansion of a valve's shaft relative to the valve's housing, thus reducing a risk of shortening the useful lifetime of either the fixed roller bearing or the floating roller bearing. |
