Guideline values of specification life for axlebox bearings and units for railway vehicles
| Type of vehicle | Specification life |
| Million kilometres | |
| Freight wagons to UIC specification based on continuously acting maximum axle load | 0,8 |
| Mass transit vehicles: suburban trains, underground carriages, light rail and tramway vehicles | 1,5 |
| Main line passenger coaches | 3 |
| Main line diesel and electric multiple units | 3 ... 4 |
| Main line diesel and electric locomotives | 3 ... 5 |
