| 摘要 |
<p>A bearing disc for diamond tools, e.g. a circular saw blade, comprising a set of radial cuts, near the disc hub; a set of radial cuts, being staggered with respect to the former, near the outward edge; a set of Z-shaped cuts, approximately near the outward edge. The Z-shaped cuts are placed in pairs between said external radial cuts, the Z-shaped cuts of each pair being symmetrically placed with respect to a radius of the disc passing between them. The cuts have their ends turned backwards. <IMAGE></p> |
