| 摘要 |
In an alternating-current generator, at least one of the bearings of the rotor shaft comprises an outer race (12a) provided with axial longitudinal grooves (13). The bearing is inserted into a bearing plate fitting recess (11) and hub material is pressed into the axial grooves in order to prevent rotation of the race whilst simultaneously allowing axial movement for thermal expansion. The material can be compressed by peening-over hub material from the bearing plate (10) into the grooves, or by turning at least one eccentric pin (16), which is seated in an axial bore (17) adjacent to the bearing plate fitting recess (11). <IMAGE> |
