WEG M line Series, Инструкция по установке, эксплуатации и обслуживанию

Страница: 44 / 59

www.weg.net
44 l
Installation, operation and maintenance manual – Squirrel cage motor – M line – Vertical 11371757
7.9.2.5 Bearing disassembly
Figure 7.6: Upper bearing
Figure 7.6 legend:
10. Oil tank
20. Bearing hub
30. Oil flinger
60. Oil drip pan
80. Seal fastening ring
90. Socket screw
100. Teflon seal
110. Gasket
120. Rolling bearing
130. Upper intermediate ring
140. Fastening nut
150. Socket screw
200. Lower intermediate ring
210. Socket screw
270. Shaft
280. Socket screw
Before disassembling the upper bearing:
Support the rotor on the shaft end with a hydraulic jack;
Drain the oil completely from the bearing;
Clean the external part of the bearing thoroughly;
Remove the temperature sensors.
Upper bearing disassembly
In order to disassemble the bearing, proceed carefully as
the following guidelines, keeping all the parts in a safe
place.
Remove the upper bearing cover;
Remove the KMT nut (140);
Remove the intermediate ring (130);
Remove the screws (150) and remove the bearing hub;
Remove the rolling bearing (120);
Reinstall the upper intermediate ring (130), fasten it
directly to the lower intermediate ring (200) and, using a
rolling bearing puller, extract the set formed by the
upper ring (130), lower ring (200) and rolling bearing
(120).
Figure 7.7: Lower bearing
Figure 7.7 legend:
10. Oil tank
20. Oil flinger
30. Oil guide
40. Bearing hub
50. Rolling bearing
60. Socket screw
70. Oil injector nozzle
80. Seal fastening ring
100. Socket screw
110. Gasket
130. Socket screw
180. Segmented ring
190. Teflon seal
200. Seal fastening ring
210. Oil guide
250. Labyrinth taconite seal
Before disassembling the lower bearing:
Drain the oil completely from the bearing;
Put the motor in the horizontal position;
Clean the external part of the bearing thoroughly;
Remove the grounding brush (if any);
Remove the temperature sensors.
Lower bearing disassembly
In order to disassemble the bearing, proceed carefully as
the following guidelines, keeping all the parts in a safe
place.
Remove the screws (8) that fasten the labyrinth taconite
seal (250);
Remove the labyrinth taconite seal (250);
Remove the oil tank (10);
Remove the segmented ring (180);
Remove the oil flinger (20);
Remove the rolling bearing hub (40);
Remove the rolling bearing (50);
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.
110
110
120
270
130
140
280
210
10
60
30
150
20
110
100
80
90
200