| 摘要 |
Transmission comprising a rotary shaft (4) on which a gear (6) with helical gearing (10) is rotatably mounted (8) and lockable (9). The gear has an annular surface (14) concentric to the centerline of the shaft, and which abuts axially against a corresponding abutment (18) on the shaft. Both the annular surface and the abutment surface form an angle of 45 DEG to a normal to the centerline of the shaft. The shaft abutment (18) thus absorbs a portion of the inwardly directed radial forces, thereby reducing the radial force acting on needle bearing (8). The cylindrical shape of the gear (6) is also preserved. <IMAGE> |
