Rolling bearings in electric motors and generators
Rolling bearings in electric motors and generators
Rolling bearings in electric motors and generators
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www.bergab.ru Берг АБ bergab@ya.ru Тел. (495)-228-06-21, факс (495) 223-3071<br />
4 Lubrication <strong>and</strong> seal<strong>in</strong>g<br />
Oil lubrication<br />
Diagram<br />
5<br />
Estimation of the rated viscosity ν 1 required for adequate lubrication<br />
Required viscosity<br />
1000<br />
ν1<br />
mm 2 /s<br />
500<br />
5<br />
2<br />
10<br />
200<br />
20<br />
100<br />
50<br />
100<br />
50<br />
200<br />
500<br />
20<br />
n=1000<br />
1500<br />
2000<br />
10<br />
3000<br />
5000<br />
10000<br />
20000<br />
5<br />
100000<br />
50000<br />
10 20 50 100 200 500 1000 2000<br />
d m = 0,5(d+D), mm<br />
4<br />
Estimation of the actual operat<strong>in</strong>g viscosity ν<br />
Operat<strong>in</strong>g viscosity<br />
1000<br />
ν<br />
mm 2 /s<br />
500<br />
Diagram<br />
6<br />
200<br />
ISO 1500<br />
100<br />
50<br />
20<br />
1000<br />
680<br />
460<br />
320<br />
220<br />
150<br />
100<br />
68<br />
46<br />
32<br />
22<br />
15<br />
10<br />
10<br />
5<br />
20<br />
30 40 50 60 70 80 90 100 110 120<br />
Operat<strong>in</strong>g temperature, °C °C<br />
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