Service factor of geared motors

The service factor (fs) is a safety factor for gearboxes that describes the operating conditions of the drive.
''fs=1'' stands for uniform loads, 8 hours per day and up to 100 switching operations per hour. The service factor depends on:

- Operating time
-Type of load
- Switching frequency
- Type of drive
- Other factors

To determine the correct operating factor:
1. Determine the operating time of the driven machine.
2. Select the load type of the driven machine.
U - uniform load
M - non-uniform load
H - highly non-uniform load
3. Determine the switching frequency.
4. After determining the above values, the operating factors can be read from the table below
table below.

We offer various geared motors, e.g. worm gear units / helical gear units / helical bevel gear units / planetary gear units, parallel shaft gear units.

In general, we recommend using a service factor of less than 1 for geared motors only in exceptional cases.