Values for life adjustment factor a1
| Reliability | Failure
probability |
Rating life | Factor |
| n | Ln | a1 | |
| % | % | million revolutions | – |
| 90 | 10 | L10 | 1 |
| 95 | 5 | L5 | 0,64 |
| 96 | 4 | L4 | 0,55 |
| 97 | 3 | L3 | 0,47 |
| 98 | 2 | L2 | 0,37 |
| 99 | 1 | L1 | 0,25 |
| Reliability | Failure
probability |
Rating life | Factor |
| n | Ln | a1 | |
| % | % | million revolutions | – |
| 90 | 10 | L10 | 1 |
| 95 | 5 | L5 | 0,64 |
| 96 | 4 | L4 | 0,55 |
| 97 | 3 | L3 | 0,47 |
| 98 | 2 | L2 | 0,37 |
| 99 | 1 | L1 | 0,25 |
