Dimensioning
The dimensioning of the backstop complies with the following basic rules:
- Speed of the gear unit input shaft: 0 – 1800 min-1
- Maximum permitted torque of the backstop in relation to the gear unit output shaft. At least 1.8 times the nominal gear unit torque with the exception of:
Size | Nominal gear unit ratio iN | Size | Nominal gear unit ratio iN |
|---|---|---|---|
X2F140 | 6.3/7 | X3F260 | 20 |
X2F150 | 8/9 | X3F270 | 22.4 |
X2F260 | 8 | X3F280 | 25/28 |
X2F280 | 10 | X3F300 | 56 |
X2K220 | 8/10 | X4F120 | 100 |
X2K230 | 9/11.2/12.5 | X4F130 | 125 |
X3F180 | 20 | X4F290 | 100 |
X3F230 | 45 | X4F300 | 112 |
In case of deviating requirements, contact SEW‑EURODRIVE.
