WEG WGM, Installation, Operation And Maintanance Manual

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11239449 Installation, operation and maintenance manual – Squirrel cage motor – W Line - Horizontal and vertical l 43
DE bearing disassembly
In order to disassemble the bearing, proceed according to
the following guidelines:
1.
Remove the screws (4), protection disc (5) and the
labyrinth taconite seal (6);
2. Remove the screws (7) from the outer and inner
bearing caps (8 and 13);
3. Remove the outer bearing cap (8);
4. Remove the screw (9) that fixes the grease flinger (10);
5. Remove the grease flinger (10);
6. Remove the D-end shield (11);
7. Remove the rolling bearing (12);
8. Remove the inner bearing cap (13) if necessary.
Figure 7.5: NDE bearing
Figure 7.5 legend:
1.
Temperature sensor
2. Grease nipple
3. Grease collecting drawer
4. Screw
5. Outer bearing cap
6. Screw
7. Grease flinger
8. ND-end shield
9. Rolling bearing
10. Spring
11. Inner bearing cap
NDE bearing disassembly
In order to disassemble the bearing, proceed according to
the following guidelines:
1.
Remove the screws (4) from the outer and inner
bearing caps (5 and 11);
2. Remove the outer bearing cap (5);
3. Remove the screw (6) that fixes the grease flinger (7);
4. Remove the grease flinger (7);
5. Remove the ND-end shield (8);
6. Remove the rolling bearing (9);
7. Remove the inner bearing cap (11) if necessary.
ATTENTION

During the bearing disassembly, it is
necessary to be careful not to damage the
balls, rollers or shaft surface;

Keep the disassembled parts in a safe
and clean place.
7.10.1.10 Disassembly – vertical bearings
Figure 7.6: Lower bearing
Figure 7.6 legend:
1.
Temperature sensor
2. Grease nipple
3. Grease collecting drawer
4. Screw
5. Protection disc
6. Labyrinth taconite seal
7. Screw
8. Outer bearing cap
9. Screw
10. Grease flinger
11. Lower end shield
12. Rolling bearing
13. Spring
14. Inner bearing cap
7.10.1.10.1 Before disassembling

Remove the water from the cooling circuit, as described
in section 7.7 of this manual;

Remove the extension tubes from the grease inlet and
outlet;

Thoroughly clean the external part of the bearing;

Remove the grounding brush (if any);

Remove the temperature sensors.