| 摘要 |
A device for rotating a turntable includes a turret and a turntable bearing The turret is rotatable in a through-going opening or well in the hull of a vessel and has axial and radial bearing assemblies arranged in a polar array about the turret center line. In order to reduce the substantial wear caused by relative movements between the axial wheels of the bearing assembly and the circular rail on the bearing support structure, the axial wheels are conically shaped with a double curved surface rolling on the upward facing edge of the circular rail with a slope aligned with an extension line of the rail substantially intersecting with the shaft center line at the center line of the turret. The radial bearing assembly includes horizontally arranged radial wheels with double curved surfaces. Each wheel rolls on an inward facing edge of the circular rail.
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