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Maintenance
7.1 Maintenance
For the bearing assignments as well as the associated permissible lateral forces and
minimum loads when cylindrical-roller bearings are installed at the DE, refer to the catalog or
contact us.
The DE bearing contains built-in spring elements that help to rebalance the axial play of the
external bearing rings.
NOTICE
Permanently lubricated bearings should be exchanged approx. every three years,
regardless of the length of use (operating hours)
[ID: 359.01]
7.1.5
Lubrication (optional)
Relubrication intervals
The relubrication intervals are stated on the lubrication instruction plate of the three-phase
motor.
NOTICE
Observe the basic lubrication interval (see section entitled "Measures, intervals").
NOTICE
If there is a long interval between delivery and commissioning of the motor, the bearings
must be relubricated.
The grease change intervals apply for normal loads, operation at speeds corresponding to
those specified on the nameplate, precision-balanced running, almost neutral ambient air
and the use of high-quality rolling-contact bearing greases.
Grease types
The following high-quality rolling-contact bearing greases have been tested and are suitable:
Table 7-2
K3N greases
ARAL Aralub 4340
ESSO / Unirex N 3
DEA Glissando 30
ESSO Beacon 3
FUCHS Renolit FWA 220
SHELL Alvania RL3
56
Rolling-contact bearing greases
Siemens AG Operating Instructions 2.02 1PL622
A5E00264365A
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