44 – EN ABB Motors and Generators |
3GZF500730-70 rev. C RU-EN 01-2016
7.2.4 Lubricants
WARNING
Do not mix different types of grease.
Incompatible lubricants may cause bearing
damage.
When regreasing, use only special ball bearing grease with
the following properties:
− good quality grease with lithium complex soap and with
mineral- or PAO-oil
− base oil viscosity 100-160 cST at 40 °C
− consistency NLGI grade 1.5 – 3 *)
− temperature range –30 °C – +140 °C, continuously.
*) A stiffer end of scale is recommended for vertical mount-
ed motors or in hot conditions..
The above mentioned grease specification is valid if the
ambient temperature is above –30 °C or below +55 °C,
and the bearing temperature is below 110 °C, otherwise
consult ABB regarding suitable grease.
Grease with the correct properties is available from all
major lubricant manufacturers.
Admixtures are recommended, but a written guarantee
must be obtained from the lubricant manufacturer, espe-
cially concerning EP admixtures, that admixtures do not
damage bearings or the properties of lubricants at the
operating temperature range.
WARNING
Lubricants containing EP admixtures are not recom-
mended in high bearing temperatures in frame sizes
280 to 450.
The following high performance greases can be used:
− Mobil Unirex N2 or N3 (lithium complex base)
− Mobil Mobilith SHC 100 (lithium complex base)
− Shell Gadus S5 V 100 2 (lithium complex base)
− Klüber Klüberplex BEM 41-132 (special lithium base)
− FAG
Arcanol TEMP110 (lithium complex base)
− Lubcon Turmogrease L 802 EP PLUS
(special lithium base)
− Total
Multiplex S2 A (lithium complex base)
− Rhenus Rhenus LKZ 2 (lithium complex base)
NOTE!
Always use high speed grease for high speed 2-pole
machines where the speed factor is higher than
480,000 (calculated as Dm x n where Dm = average
bearing diameter, mm; n = rotational speed, r/min).
The following greases can be used for high speed cast
iron motors but not mixed with lithium complex greases:
− Klüber Klüber Quiet BQH 72-102 (polyurea base)
− Lubcon Turmogrease PU703 (polyurea base)
If other lubricants are used, check with the manufacturer
that the qualities correspond to those of the above men-
tioned lubricants. The lubrication intervals are based on
the listed high performance greases above. Using other
greases can reduce the interval.
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