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Installation, operation and maintenance instructions
High voltage flameproof motors for explosive atmosphere
AMD Rg 355-400-450-500
Recommended lubricating grease
Issued by: ITIND-DMPB
Sheet No
3AAM101041 E
Rev. B
Page 1 of 2
01.2023
We r
es
er
ve
a
ll r
ig
hts
in
this
doc
umen
t a
nd
in
the
infor
m
ati
on
co
nt
ai
n
e
d t
her
ein.
R
epr
o
duc
tion
,
us
e
of
dis
cl
os
u
re
to t
h
ird
pa
rt
ies
w
ithout
ex
pr
es
s
au
th
ority
is
st
ric
tly
f
or
bidd
en.
ATTENTION:
The grease to be used is always indicated on the bearing plates fixed on the machine.
Here are reported some general rules
For 2 poles motors special additivities greases should be used like: ESSO UNIREX N, or equivalent.
In case of very low ambient temperature, below -30° C synthetic base oil greases should be used like:
MOBILGREASE28, AeroShell grease 22, or equivalent.
For vertical motors lithium soap greases NLGI grade 3 are preferably used.
Various brands of recommended lubricating greases.
The following list should be considered as being a random selected from brands available on the market
with no
preference given to any particular brand. These greases have all lithium (or lithium/calcium) thickener soap and
mineral base oil
Recommended standard lubricants.
Manufacturer
Quality
Thickener
Base oil
Tempera-
ture range
[°C]
Kinematic
viscosity of
base oil
[mm
2
/s, cSt
at 40°C]
Kinematic
viscosity of
base oil
[mm
2
/s, cSt
at 100°C]
Consis-
tency
[NLGI
scale]
ESSO
UNIREX N2
Li
Mineral
-30 to +165
115
12.2
2
ESSO
UNIREX N3
Li
Mineral
-30 to +165
115
12.2
3
ESSO
BEACON 2
Li
Mineral
-40 to +120
100
9.5
2
SKF
LGMT 2
Li
Mineral
-30 to +120
92
9.6
2
MOBIL OIL
Mobilux 2
Li
Mineral
-30 to +120
100
10.0
2
SHELL
Alvania Grease G2
Li/Ca
Mineral
-25 to +140
100
11
2
SHELL
Alvania Grease G3
Li/Ca
Mineral
-20 to +150
100
11
2
TEBOIL
Multi-Purpose
Grease
Li
Mineral
-30 to +110
110
10.5
2
BP
Energrease LS 2
Li
Mineral
-30 to +110
92
9.5
2
STATOIL
Uniway Li 42
Li
Mineral
-30 to +120
100
12.0
2