Application : Backstop
| Driving machine | Driven machine | ||||
| Elastic conveyor belts with risk of jam | Pump drives, shaft length more than 5 meters | Fans | Other machines | ||
| No overloads | Dynamic overloads | ||||
| Motors with hydraulic couplings | 1,3 | 1,6 | 0,5 | 1,0 | 1,5 |
| Asynchronuous motors with direct start | 1,6 | 1,6 | 0,5 | 1,0 | 1,5 |
| Steam or gas turbine | - | 1,6 | 0,5 | 1,0 | 1,5 |
| Internal combustion engine | 1,6 | 1,6 | 0,5 | 1,0 | 1,5 |
