Selecting the cooling system

If the thermal rating PT of a gear unit is not sufficient with cooling by fan, water cooling cover, or water cooling cartridge, you can use a cooling system with circulation cooling; see chapter Cooling.

The proper size of the cooling system can be determined by approximation by means of the power loss PV of the gear unit.

Power loss – PV

 

 

PV

kW

Power loss

PK1

kW

Operating power at HSS

η

 

Efficiency

The power loss PV of the gear unit must be smaller than the cooling capacity of the cooling system.

PV< cooling capacity of cooling system in kW

In addition, the selection of the appropriate cooling system depends on the following factors:

  • Actual power loss to be cooled
  • Present cooling water temperature and volume flow
  • Ambient temperature
  • Ratio of oil quantity in the gear unit to oil volume flow of cooling system > 2

Contact SEW-EURODRIVE to select the suitable circulation cooling for your ambient conditions.