Step 8: Checking the thermal rating
Thermal rating of the gear unit – PT
| ||
|---|---|---|
| ||
PT | kW | Thermal rating of the gear unit |
PTH | kW | Nominal thermal rating of the gear unit. The values in the selection tables depend on the type of cooling, mounting position, and lubrication type. |
f1 | kW | Altitude factor |
fT | kW | Temperature factor |
The operating power PK1 must not exceed the thermal rating PT (PK1 ≤ PT). Additional cooling is required if PK1 > PT
141.4 kW > 103 kW
→ The thermal rating at 40 °C is not sufficient without additional cooling.
Thermal rating of the gear unit – PT
| ||
|---|---|---|
| ||
PT | kW | Thermal rating of the gear unit |
PTH | kW | Nominal thermal rating of the gear unit. The values in the selection tables depend on the type of cooling, mounting position, and lubrication type. |
f1 | kW | Altitude factor |
fT | kW | Temperature factor |
With a fan:
→ The thermal rating at 40 °C is sufficient with fan.
