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1019659 11/2014
Harmonic Drive® lubricating greases
Type
Standard
Special
SK-1A
SK-2
Flexolub A1
4BNo.2
Operating temperature range
0° C ... +80° C
0° C ... +80° C
-40° C ... +120° C
-10° C ... +110° C
Base oil
Mineral oil
Mineral oil
PAO / Ester oil
Synthetic oil
Thickener
Lithium soap
Lithium soap
Lithium soap
Urea
Consistency class (NLGI)
2
2
1
1-2
Base oil viscosity (40° C; 100° C)
37; 5.9 mm
2
/s
37; 5.9 mm
2
/s
25; 5.2 mm
2
/s
50; 12 mm
2
/s
Drop Point
197° C
198° C
180° C
247° C
Colour
yellow
green
magenta
pale yellow
Max. storage time in hermetically sealed container
5 years
5 years
5 years
5 years
Tightness (Safety against grease- or base oil leakage
at the oil seals)
+
+
+
+/-
Notes:
+ = Good
+/− = May be critical depending on design / mounting position / application, please contact Harmonic Drive AG
Table 29.1 gives some important information regarding Harmonic Drive® lubricating greases.
Table 29.1
Safety data sheets or technical data sheets for the Harmonic Drive® lubricants are available from Harmonic Drive AG.
