Lubricants - ABB Low Voltage Motors Manuel D'installation, D'exploitation Et De Maintenance

6.2.4 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 - +120°C, continuously.
*) For vertical mounted motors or in hot conditions a
stiffer end of scale is recommended.
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 the
major lubricant manufacturers.
Admixtures are recommended, but a written guarantee
must be obtained from the lubricant manufacturer,
especially 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
recommended in high bearing temperatures in
frame sizes 280 to 450.
ABB/Manual for Low Voltage Motors 01-2009
The following high performance greases can be used:
- Esso Unirex N2 or N3 (lithium complex base)
- Mobil Mobilith SHC 100 (lithium complex base)
- Shell Albida EMS 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 S 2 A (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 high speed grease is also used
in motor types M2CA, M2FA, M2CG and M2FG,
frame sizes 355 to 400 2-pole machines.
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 mentioned lubricants.
The lubrication interval are based on the listed high
performance greases above. Using other greases can
reduce the interval.
If the compatibility of the lubricant is uncertain, contact
ABB.
EN-17