Siemens SIMOTICS FD 1LH1, Operating Instructions & Installation Instructions

Page: 134 / 174

9.2.3 Roller-contact bearings
9.2.3.1 Removing roller bearing
Preparation
● Remove any grease feeders, shock pulse measurement equipment and possibly mounted
instrumentation at the DE and NDE.
● Ensure that the DE shaft extension is freely accessible. Remove the coupling.
Note
For a schematic diagram of the respective component layout, see the chapter "Spare parts
(Page 141)".
Procedure
1. Remove the components of the bearing mounting.
– Dismount the outer bearing cover.
If present: Remove the V ring (Page 134).
Uninstall the labyrinth sealing ring (only for the option "Increased degree of protection")
(Page 135).
– Ensure that the inner bearing cover is no longer attached to the bearing housing or end
shield.
There may be springs in the inner bearing cover.
– Support the rotor for the uninstallation of bearing housing or end shield.
– If necessary, remove the bearing housing from the end shield.
– Remove the end shield. Dependent on shaft height, roller bearing type and design, it is
either a bearing head design or a bearing housing design.
– Remove the locking ring from the shaft or the set screw, depending on the version.
2. Pull off the roller bearing together with the grease slinger.
9.2.3.2 Remove V ring
Depending on the particular version, there is a V ring. The V ring must be replaced if unusual
amounts of grease escape the roller bearing or the V ring is visibly damaged.
Maintenance
9.2 Corrective Maintenance
SIMOTICS FD 1LH1
134
Operating Instructions 01/2019