4
Mechanical installation
Accessory equipment
Assembly and Operating Instructions – Gear unit series R..7, F..7, K..7, K..9, S..7, SPIROPLAN
®
W
82
4.13.8
Oil-air cooler for splash lubrication /OAC
If the thermal rating of the naturally cooled gear unit is not sufficient, an oil-air cooling
system can be used.
The cooling system is delivered without electrical wiring and piping as a complete unit
on a base frame for separate installation.
The standard scope of delivery of the cooling system includes:
• Pump with directly mounted asynchronous motor
• Oil-air heat exchanger
• Temperature switch with 2 switching points
SEW
‑
EURODRIVE uses oil-air cooling systems for standard gear units in sizes OAC
005 and OAC 010.
The following figure shows an example of a standard parallel-shaft helical gear unit
next to an oil-air cooler.
[3]
[4]
[5]
[5]
[2]
[1]
[4]
[6]
9007208235792395
[1]
Motor for pump and fan
[4]
Suction pipe connections
[2]
Oil-air heat exchanger
[5]
Pressure pipe connections
[3]
Temperature switch with 2 switch-
ing points
[6]
Option: Oil expansion tank connection
INFORMATION
For more information on the cooling system, refer to the addendum to the operating
instructions "Gear unit series R..7, F..7, K..7, K..9, S..7 and SPIROPLAN
®
W: Oil-air
cooler for splash lubrication /OAC".
21932786/EN – 05/2015