| 摘要 |
The invention refers to a device for supporting a first member which is rotatable about a mainly vertical axis on a second member. The invention is primarily intended to be used for supporting very large members, which carry very heavy loads. The device incorporates two race tracks and a plurality of rollers cooperating therewith. In order to avoid sliding movements in the contact between roller and race track at varying loads and for achieving an even load distribution on all rollers, the rollers at least of one of the rows of rollers are resiliently suspended in support members, which are adjusted thus that the rollers will engage their associated race track under preload. The rollers and/or the race tracks may be cambered or the support members may be displaceable in the longitudinal direction of the rollers and contact the adjacent elements via arc-formed supporting surfaces for achieving a pure rolling movement in the contact between roller and race track due to race track movements. |
