Service Life Of The Lubricants - Siemens SINAMICS G115D Operating Instructions Manual

11.3.24.12

Service life of the lubricants

Note
In case of ambient conditions deviating from normal conditions, e.g. high ambient
temperatures, high relative humidity, aggressive ambient media, the intervals between
changes should be shorter. In such cases, contact Technical Support for assistance in
determining the individual lubricant change interval.
Note
Oil sump temperatures above +80 °C can reduce service life. A temperature increase by 10 K halves the
service life by the amount as shown in the figure titled "Guide values for oil change intervals".
For a +80 °C oil sump temperature, the following service life can be expected when observing
the properties specified by Siemens AG:
Table 11- 47 Service life of the oils
Type of oil
Mineral oil
Biodegradable oil
Physiologically safe oil according to USDA-H1/-H2
Synthetic oil
①
②
T
I
Figure 11-34 Guide values for oil change intervals
Grease service life of roller bearing greases
Roller bearings and the clearance in front are filled with sufficient grease.
Under approved operating conditions and ambient temperatures, no regreasing is required.
We recommend that the grease in the bearings is also renewed when the oil or shaft sealing
rings are replaced.
SINAMICS G115D distributed drive
Operating Instructions, 12/2020, FW V4.7 SP13, A5E48681219B-002
Mineral oil
Synthetic oil
Oil bath steady-state temperature in °C
Oil change interval in operating hours in h
Additional information on the SIMOGEAR geared motor
Service life
10 000 operating hours or 2 years
20 000 operating hours or 4 years
11.3 Specific data gearbox
477