Wheel drive assembly for fork-lift truck, has first and second taper roller bearings whose rollers are inclined in same direction, where second taper roller bearing is partially arranged within first taper roller bearing

摘要

The assembly has a bearing for rotatably supporting a first component (3) in a second component (4). A first taper roller bearing (1) is provided with an inner ring and an outer ring. A second taper roller bearing (2) is provided with an inner ring and an outer ring, where the outer ring of the second taper roller bearing has small diameter than that of the inner ring of the first tapered roller bearing. The second taper roller bearing is partially arranged within the first taper roller bearing. Rollers of the first and the second taper roller bearings are inclined in same direction. The second component is connected with a rotatable gear box (5) that is driven by a drive motor (6). The first and taper roller bearings transfer axial and radial forces.