Safety Factor
Service factors
Before choosing any coupling, select a correction coefficient fs (service factor) according to the application severity.
The choice is only valid for the coupling series with rubber elements. Contact AB TRASMISSIONI if the table below does not cover your application.
| Driven machines | Driving machines | ||||
|---|---|---|---|---|---|
| Electric motors with normal torques, turbines, steam | Electric motors with high torques, petrol engines over 4 cylinders | Diesel engines over 8 cylinders | Diesel engines with 6-4 cylinders | Diesel engines with 2-1 cylinders | |
| Centrifugal pumps, fans | 1 | 1,2 | 1,4 | 1,7 | 2 |
| Generator sets, machine tools, rotary pumps, conveyors, elevators | 1.2 | 1,4 | 1,7 | 2 | 2,3 |
| Winches, welders, mixers, multiple piston pumps | 1,4 | 1,5 | 1,9 | 2,2 | 2,5 |
| Piston pumps and compressors, hoists, vibrators, cement mixers | 1,6 | 1,9 | 2,2 | 2,6 | 3 |
| Crushers, mills, hammer mills, paper mills | 2,1 | 2,4 | 2,8 | 3,2 | 3,7 |