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Grease selection criteria
The following greases are permissible for standard applications without any special
requirements:
● High quality ISO‑L‑X BDEA3 greases according to ISO 6743-9
● K3N‑20 greases according to DIN 51825 with lithium soap as thickener and an upper
When selecting the lubricating grease, ensure that the technical data of the grease is suitable
for the application.
The lubricating grease must satisfy the criteria listed in the table below and must match the
operating conditions. If different special lubricating greases are stated on the lubricant plate,
then different criteria apply.
Table 9-4
Criteria for selecting roller bearing greases
Criteria
Type of base oil
Thickener
Consistency according to NLGI class DIN 51818
Worked penetration
Operating temperature range
Dropping point
Basic oil viscosity
Additive
FE9 test: A/1500/6000
Behavior with respect to water
Corrosive effect on copper
Resistance to corrosion (EMCOR)
Solid matter content, particle sizes
> 25 μm
Suitability of bearings
Speed characteristic value nxdm
SIMOTICS M-1PH8 1PH818., 1PH822., 1PH828.
Operating Instructions 10/2017
service temperature of at least +140 °C / +284 °F.
Standard
-
-
DIN ISO 2137
-
DIN ISO 2176
DIN 51562-1
-
DIN 51821-1/-2
DIN 51807
DIN 51811
DIN 51802 /
ISO 11007
DIN 51813
-
Property, characteristic value
Mineral oil
Lithium
● 3 for vertical and horizontal types of construction
● 2 alternatively for horizontal type of construction
with reduced lubrication interval
220–295
At least -20 °C ... +140 °C
At least +200 °C
● Approx. 100 mm²/s at 40° C
● Approx. 10 mm²/s at 100 °C
● Antioxidation (AO), Anti-Wear (AW)
● No solid lubricants
● Alternatively: Extreme-Pressure (EP) only after
consultation with grease and bearing
manufacturers
F10 ≥ 50 h at +140 °C
F50 ≥ 100 h at +140 °C
0 or 1 at a test temperature of +90 °C
0 or 1 at a test temperature of +140 °C
0 - 0 (0 - 1, permissible for special greases)
< 10 mg/kg
Suitable for the built-in motor bearings, seals and
these speeds
Maintenance
9.2 Inspection and maintenance
Unit
-
-
-
0.1 mm
°C
°C
mm²/s
-
h
-
Corr.°
Corr.°
mg/kg
-
mm/min
111
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