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Maintenance
10.5 Corrective maintenance
Sealing the bearings
Note the following details:
• Shaft sealing rings are used to seal machines at the rotor shaft.
– For V rings, comply with the assembly dimension.
• Use the specified bearings.
• Ensure that the bearing sealing disks are in the correct position.
• Insert the elements for bearing preloading at the correct end.
• Fixed bearings can have a locking ring or bearing cover.
• Seal the bearing cap screws with the appropriate gaskets or with grease.
• Do not interchange the position of the bearing covers (DE and NDE or inner and outer).
Danger as a result of rotor falling out
If the motor is in a vertical position, the rotor can fall out while work is being performed on the
locating bearing. This can result in death, serious injury or damage.
• Support or unload the rotor when carrying out work with the machine in a vertical position.
10.5.3
Shaft sealing, mounting dimensions and alignment
Mounting dimension "x" of V rings
• Extreme caution and attention to the correct positioning are vital during installation and
assembly.
• Make sure the sealing surface is free of dirt and damage.
• Lightly grease the sealing lips.
116
Shaft height
63 ... 71
80 ... 112
132 ... 160
180 ... 225
250 ... 315
x
mm
4.5 ±0.6
6 ±0.8
7 ±1
11 ±1
13.5 ±1.2
Operating Instructions, 10/2023, A5E46712792A
Standard design
Special design
1FU9
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