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1<br />
Bearings for 1LG4/6 motors, strengthened deep-groove ball bearings on both sides, Order Code K36<br />
Squirrel-cage motors<br />
Technical information<br />
Mechanical design<br />
■ Bearings (continued)<br />
Selection of bearings for 1LG4/6 motors, bearings for high cantilever forces, Order Code K20<br />
For motors Type<br />
Number of poles Drive-end bearing Non-drive end<br />
Fig. No.<br />
Frame size 1LG4 . . .<br />
bearing<br />
on<br />
1LG6 . . .<br />
page<br />
Horizontal motors Vertical motors Horizontal motors Vertical motors 2/34<br />
180 M<br />
180 L<br />
. . . . 18 . all NU210 6210 C3 Fig. 4<br />
200 L . . . . 20 . all NU212 6212 C3<br />
225 S<br />
225 M<br />
. . . . 22 . all NU213 6213 C3<br />
250 M . . . . 25 . all NU215 6215 C3<br />
280 S<br />
280 M<br />
. . . . 28 . 2<br />
4 to 8<br />
NU217<br />
NU317<br />
6217 C3<br />
6317 C3<br />
Fig. 5<br />
315 S<br />
315 M<br />
. . . . 310<br />
. . . . 313<br />
2<br />
4 to 8<br />
NU219 3 )<br />
NU319<br />
6219 C3<br />
6319 C3<br />
315 L . . . . 316<br />
. . . . 317<br />
. . . . 318<br />
2<br />
4 to 8<br />
NU219 3 á<br />
â<br />
ã<br />
á<br />
â<br />
ã<br />
)<br />
NU319<br />
6219 C3<br />
6319 C3<br />
For motors<br />
Frame size<br />
Type<br />
1LG4 . . .<br />
1LG6 . . .<br />
Number of poles Drive-end bearing Non-drive end<br />
bearing<br />
Fig. No.<br />
on<br />
page<br />
2/34<br />
Horizontal motors Vertical motors Horizontal motors Vertical motors<br />
180 M<br />
180 L<br />
. . . . 18 . all 6310 ZC3 1 ) 6310 ZC3 1 ) Fig. 4<br />
200 L . . . . 20 . all 6312 ZC3 1 ) 6312 ZC3 1 )<br />
225 S<br />
225 M<br />
. . . . 22 . all 6313 ZC3 1 ) 6313 ZC3 1 )<br />
250 M . . . . 25 . all 6315 ZC3 1 ) 6315 ZC3 1 )<br />
280 S<br />
280 M<br />
. . . . 28 . 2<br />
4 to 8<br />
–<br />
6317 C3 2 )<br />
–<br />
6317 C3 2 )<br />
Fig. 5<br />
315 S<br />
315 M<br />
315 L<br />
. . . . 31 . 2<br />
4 to 8<br />
6316 C3<br />
6319 C3 2 )<br />
6316 C3<br />
6319 C3 2 á<br />
â<br />
ã<br />
á<br />
â<br />
ã<br />
)<br />
1) For regreasing designs (Order<br />
Code K40), bearings without a<br />
deep-groove bearing are used.<br />
2) As standard version.<br />
3) Only for 50 Hz.<br />
Siemens M 11 · 2003/2004 2/33<br />
2
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