GRW Ball Bearings Lubricants
High precision ball bearings in grades up to ABEC 9 with bores from 1 to 30mm and comparable inch dimensions
General Information
GRW Bearings LUBRICANTS
Selecting the right lubricant and lubricating method is just as decisive for the bearing function as selecting the bearing itself and designing the mating parts.
The decision on a specific lubricant is made according to the operating conditions and the torque demands.
Lubricating oils
Lubricating oil is mainly used where minimum torque is required.Â
GRW ball bearings, either open or with one closure, are preserved with oil ex works if no special lubrication is specified.
Lubricating greasesÂ
GRW ball bearings with closures on both sides and also our ball bearings with one closure together with a snap retainer are greased ex works if no special lubrication is specified.
Regarding this we would mention that lubricating greases with EP additives are not suitable for low-noise ball bearings.
The ball bearings can be lubricated with oils and greases other than those listed in the tables upon request and in quantities agreed upon. There are around 250 lubricants to choose from. Please contact us for specific details.
Special treatment
Special operating conditions go beyond the limits of application even for the special lubricants which are used. In such cases it is possible to specify suitable ball bearings by using different coatings. Galvanically applied precious metal layers, graphite, MoS2 etc. are used here. This treatment is used for ball bearings to work in vacuum systems up to ultra-high vacuums (UHV), in aviation and aerospace technology and at extreme temperatures.
Hard coatings, for example, TiC, TiN or highest grade chromium are also applied for special applications.
Please contact us for further information.
Table 3: Lubricating Oils
Code | Brand Name | Manu-facturer | Basic Oil | Operating Temperature Range | Viscosity at 40oC/100oC [mm2/s] | Specification |
L001 | Aero Shell Fluid 12 | Shell | Ester | -40 to 100oC | 15/3.7 | MIL-L-6085 C |
L010 | Isoflex PDP 38 | Klüber | Ester | -65 to 100oC | 12/3.2 | Following MIL-L-6085 |
L014 | Krytox 143 AC | Du Pont | PFPE | -34 to 288oC | 200/30 | – |
L020 | Shell Ensis L | Shell | Mineral | -10 to 100oC | 32/5.5 | – |
L085 | Nyosil M 25 | Nye | Chlorphenyl-silikon | -70 to 200oC | 56/20 | – |
L027 | Synthetic Oil 200 A (Winsor Lube L 245 X) | Nye | Ester | -54 to 200oC | 13/3.4 | MIL-L-6085 C |
L065 | Gargoyle Arctic SHC 224 | Mobil Oil | Polyalphao-lefin | -45 to 140oC | 29/5.6 | USDA-H1 |
Table 3: Lubricating Process
Code | Brand Name | Manu-facturer | Composition | Operating Temperature Range | Viscosity at 40oC/ 100oC [mm2/s] | Speed Factor | Specifi-cation |
G305 | ASG 7 | Shell | Diester/ microgel | -73 to 149oC | 15/3.1 | Not known | MIL-G-23827 B |
G310 | Asonic GLY 32 | Klüber | Ester + polyalpha-olefin/ lithium | -50 to 140oC | 25/5 | 1.000.000 | – |
G315 | Barrierta L 55/2 | Klüber | PFPE/PTFE | -40 to 260oC | 400/38 | 300.000 | – |
G316 | Nye Instrument Grease 704 B | Nye | Diester/ lithium | -65 to 150oC | 11.8/3.25 | 300.000 | – |
G331 | Isoflex Super LDS 18 | Klüber | Mineral oil + ester / lithium | -50 to 120oC | 15/3.7 | 1.000.000 | – |
G332 | Isoflex Topas NB 52 | Klüber | Polyalphao-lefin/barium complex | -50 to 150oC | 30/5.5 | 1.000.000 | Following MIL-G-81322 |
G338 | Krytox 240 AC | Du Pont | PFPE/PTFE | -34 to 288oC | 200/30 | 400.000 | MIL-G-27617 Type III MIL-G-27616 |
G340 | Longtime PD2 | Optimol | Mineral oil/lithium | -35 to 140oC | 95/9.0 | 1.000.000 | – |
G366 | Nyogel 781 D (versilube G300) | Nye | Ghlorophe-nylsilicon/ lithium | -70 to 200oC | 53/18.9 | 200.000 | – |
G462 | Unisilkon L50/2 | Klüber | Silicon/PTPE | -50 to 200oC | 112/27 | 200.000 | – |
G463 | Mobilgrease FM 102 | Mobil Oil | White oil/ aluminium complex | -20 to 120oC | 108/10.5 | 400.000 | FDA 178.3570 USDA-H1 |
