| 摘要 |
The freewheel (14) is arranged in a region where the assembly comprising the hub (4) integral with the shaft (5) penetrates concentrically into the interior of the nut (9) carrying the pinions (19). The assembly comprising the hub (4) and shaft (5) bears on the fixed axle (1) through two bearings (6, 7) only one (6) of which absorbs the axial forces. The nut (9) bears radially on the axle (1) directly through the bearing (10), which absorbs all the axial forces, and indirectly through the bearings (13).
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