78
Assembly and Operating Instructions – Gear Units R..7, F..7, K..7, K..9, S..7, SPIROPLAN® W
4
Accessory equipment
Mechanical Installation
4.14.7 Oil expansion tank
The oil expansion tank is to compensate for oil volume variations in the system caused
by temperature fluctuations. When the gear unit temperature increases, the expansion
tank absorbs some of the increasing oil volume and feeds it back to the gear unit as the
temperature goes down. As a result, the gear unit is always completely filled with oil.
The figure shows an example of a gearmotor in mounting position M4:
4.14.8 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.
4986667147
Page 91
Summary of Contents for BN 5-12 Series
Page 13: ...TAB 1 DEVICE DATA SHEETS ...
Page 18: ...TAB 2 APPROVED SUBMITTAL ...
Page 23: ...All data subject to change without notice 1 800 ASK 4WEG www weg net 14 ...
Page 26: ...Your advantages our pumps ...
Page 45: ...ADV 2 13E And what can we get flowing for you Your nearest contact Or visit www seepex com ...
Page 117: ...TAB 3 INSTALLATION OPERATIONS AND MAINTENANCE ...
Page 133: ...Page 37 ...
Page 233: ...www weg net Manual of Electric Motors 64 ENGLISH Figure 2 1 IEC motor nameplate Page 135 ...
Page 234: ...www weg net Manual of Electric Motors 65 ENGLISH Figure 2 2 NEMA motor nameplate Page 136 ...
Page 306: ...TAB 4 AS BUILTS AND SUPPLEMENTAL INFORMATION ...
Page 307: ...R Page 29 ...
Page 308: ...R Page 30 ...