| 摘要 |
The brake has opposing brake blocks which each engage on a ring-shaped friction face of the brake disc. At least one and probably both of the two friction faces (1a) has indentations (2a,2b,2c) with a depth corresponding to the maximum permissible wear of the friction surface. The indentations can be cast or mechanically formed. They can be arranged in several curved rows. The indentations can be cylindrical, conical or shaped like oblong holes. |
