| 摘要 |
A steering assembly including a steering shaft, a tubular housing, and at least one deformable sleeve bearing. The sleeve bearing is interposed between the tubular housing and the steering shaft wherein the shaft is rotatably supported. The sleeve bearing is formed of a polymeric material having a predetermined hardness which is less than the predetermined hardness of the steering shaft. Thus, if foreign matter such as dirt or debris enters the steering assembly, the sleeve bearing may be disfigured, thereby preventing the foreign matter from obstructing normal steering operations. |
