Gapping and edge lifting between material and plate
| Component | Friction Lining | |
| Characteristic | Gapping and edge lifting between material and plate | |
| Brake pads friction area ≤ 120 cm2 | Not acceptable. To check this, a 0.1 mm thick feeler gauge with rounded head may be pushed "force-free" under the material up to max. 1 mm. |