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Table 7-1
Measures
Initial inspection
Continuous lubrication
(Machines without regreasing
device )
Machines with regreasing
device (option)
Cleaning
Main service
[ID: 356]
7.1.3
Bearings
Description
The three-phase motors have grease-lubricated, rolling-contact bearings. A regreasing
device is optional.
A deep-groove ball bearing is installed at the non drive end as a locating bearing. Depending
on the type of load, a deep-groove ball bearing or cylindrical-roller bearing is installed at the
drive end as a floating bearing.
The respective bearing assignment, the correspondingly permissible lateral forces and the
minimum loads when cylindrical-roller bearings are installed at the drive end can be found in
the catalog or you can ask us for this data.
The D-end bearing contains built-in spring elements which 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]
7.1.4
Lubrication (optional)
Relubrication intervals
The relubrication intervals are stated on the lubrication instruction plate of the three-phase
motor.
SIEMENS AG, 1PH718 A5E00215729A
Operating Instructions - Three-phase induction motor - AH 180
Service period intervals
Service period intervals
after 500 operating hours
Belt operation 12 000 h
Coupling operation 20 000 h
(see lubrication instruction plate)
depending on local degree of
pollution
approx. every 16,000 operating
hours
V 2.0
Maintenance
7.1 Maintenance
Intervals
after 6 months at the latest
after 2 years at the latest
7-3
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