Bearings; Lubrication - Siemens 1PH728 Operating Instructions Manual

Measures, intervals
Measures after service period intervals have elapsed:
Table 7-1
Measures
Initial inspection
Relubrication (optional)
Cleaning
Main service
[ID: 357]
7.1.3

Bearings

Description
The three-phase motors have grease-lubricated, rolling-contact bearings. A regreasing
device is available.
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.
Preloading springs, thrust collars and/or equalizing rings are installed in the active part of the
bearing at the drive end to provide backlash compensation for the outer races. With
consideration for operation at the frequency converter, the bearing at the non-drive end is
electrically insulated.
[ID: 358.01]
7.1.4

Lubrication

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").
Siemens AG A5E00177602A
Operating Instructions V 2.0 1PH728
Service period intervals
Service period intervals
after 500 operating hours
(see lubrication instruction
plate)
depending on local degree of
pollution
approx. every 16,000 operating
hours
Maintenance
7.1 Maintenance
Intervals
after 6 months at the latest
after 2 years at the latest
7-3