| 摘要 |
The invention relates to a crane (100), comprising a crane pillar (1) that is supported rotatably about an axis (11), a radial bearing (2) for supporting the rotatable crane pillar (1) in a base (21), which radial bearing is lower in an installation position of the crane pillar (1), and an upper radial bearing (3) likewise for supporting the crane pillar (1) in the base (21), which upper radial bearing is at a distance from the lower radial bearing (2) along the axis (11), wherein at least one chamber (10; 9) that can be filled with oil (6) is provided for lubricating the upper radial bearing (3) and wherein a drive unit (4) is provided for the crane pillar (1), which drive unit drives the crane pillar (1) between the upper radial bearing (3) and the lower radial bearing (2), wherein a driven region (5) on the crane pillar (1) is lubricated with oil by means of the chamber (10; 9) that can be filled with oil (6). |
