| 摘要 |
A balance weight (2) for attachment to a rotary shaft comprises a plate which has at least two fixing points (16, 17) which provide for the weight to be attached to the shaft, with a relief groove (19, 20) around each fixing point. The fixing points may comprise formations (21, 22) for projection welding to the shaft, or may be apertures for receiving mechanical fasteners. <IMAGE> |
