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Squirrel-cage motors<br />

Technical information<br />

Mechanical design<br />

2<br />

■ Bearings (continued)<br />

Diagrams of bearings<br />

Fig. 1 Drive-end bearing Non-drive end bearing<br />

Fig. 2 Drive-end bearing Non-drive end bearing<br />

M1-5011d<br />

M1-5012e<br />

M1-5013d<br />

M1-5014d<br />

Fig. 3 Drive-end bearing Non-drive end bearing<br />

Located bearings for 1LA7/1LA9/1MA7, frame sizes 56 to 160<br />

Fig. 4 Drive-end bearing Non-drive end bearing<br />

M1-5163a<br />

M1-5164a<br />

M1-5165<br />

M1-5166<br />

Located bearings for 1LA5, frame sizes 180 to 225<br />

1LA9, 1MA6, frame sizes 180 to 200<br />

Fig. 5 Drive-end bearing Non-drive end bearing<br />

Fig. 6 Drive-end bearing Non-drive end bearing<br />

M1-5167<br />

M1-5168<br />

M1-5251<br />

M1-5252<br />

Frame sizes<br />

280 S to 315 L, 2- to 8-pole<br />

Frame sizes<br />

315 to 450, 2- to 8-pole, IM B3<br />

Fig. 7 Drive-end bearing Drive-end bearing Non-drive end bearing<br />

M1-5255<br />

M1-5254 M1-5253<br />

Frame sizes<br />

315, 2- to 8-pole, IM V1<br />

Frame sizes<br />

355 and 450, 2- to 8-pole, IM V1<br />

Frame sizes<br />

315 to 450, 2- to 8-pole, IM V1<br />

2/34<br />

Siemens M 11 · 2003/2004

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