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Klübersynth GEM 2-220
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Klübersynth GEM 2-220
Synthetic high-performance gear oils
Application Klübersynth GEM 2-220
Klübersynth GEM 2 oils may be used for the lubrication of spur, bevel and worm gears as well as the associated machine elements such as sliding and rolling bearings. Furthermore, they are particularly suited for applications where leaking or dripping lubricant might pose a hazard to the environment.
Performance, Features & Benefits of Klübersynth GEM 2-220 are:
- Synthetic high-performance gear oils
- High scuffing load capacity
- Very good wear protection
- High micropitting resistance
- Excellent rolling bearing test results
- Good viscosity-temperature behaviour
- Wide operating temperature range
If you have any questions, please contact OilOnline Technical Helpdesk
Product Description Klübersynth GEM 2-220
The Klübersynth GEM 2 oils are high-performance gear oils with a synthetic ester oil as base oil. They achieve a scuffing load capacity >= 14 in the FZG test acc. to DIN 51 354, pt. 2 (A/16,6/90), which is better than the CLP requirements. A micropitting test was performed acc. to FVA No. 54, which yielded a micropitting resistance >= 10. The most comprehensive tests for rolling bearing lubrication were made with Klübersynth GEM 2-320. Tests with the rolling bearing lubricant tester FE 8 resulted in a rolling element wear mW50 < 2 mg and a cage wear mK50 < 20 mg (test acc. to DIN 51819-03-D-7,5/80-80, two test runs, no failure). The oil also passed the SKF roller test (120 °C / 8 weeks). Klübersynth GEM 2 oils have a good viscosity-temperature behaviour and a wide operating temperature range. They offer good wear and corrosion protection as well as ageing and oxidation stability. Biodegradability as shown in the CEC-L-33- A-93 test is > 70% after 21 days.
Typical Characteristics
| Product specifications : | Klübersynth GEM 2-220 | |
| Article number | 012110 | |
| Lower service temperature | -30 °C / -22 °F | |
| Upper service temperature | 130 °C / 266 °F | |
| Density, 20 °C | DIN 51757 | approx. 0.95 g/cm³ |
| Kinematic viscosity, 40 °C | DIN 51562 pt. 01/ASTM D-445/ASTM D 7042 | approx. 220 mm²/s |
| Kinematic viscosity, 100 °C | DIN 51562 pt. 01/ASTM D-445/ASTM D 7042 | approx. 25 mm²/s |
| ISO viscosity grade, | DIN ISO 3448 | 220 |
| Viscosity index, | DIN ISO 2909 | >= 150 |
| Flash point, Cleveland, open-cup apparatus | DIN EN ISO 2592 | >= 200 °C |
| Anticorrosive properties on steel, method A, steel, 24 h/60 °C | DIN ISO 7120 | no rust corrosion degree |
| Pour point, | DIN ISO 3016 | <= -30 °C |
| Minimum shelf life from the date of manufacture - in a dry, frost-free place and in the unopened original container, approx. |
36 months |
Application notes
Klübersynth GEM 2 oils can be applied by immersion, immersion circulation or injection. Drip-feed lubrication and application by brush or oil feeder is also possible, as well as use in automatic lubricating systems. Basically, Klübersynth GEM 2 oils are miscible with conventional mineral oils and polyalfaolefin oils. It should be noted, however, that the oils may no longer be rapidly biodegradable when mixed with mineral or polyalfaolefin oil. For this reason careful cleaning of the gear or the oil circulation system is advisable before switching to Klübersynth GEM 2 oils. Ester-based synthetic lubricants may affect the functional characteristics of rubber seals, depending on the temperature and time of exposure. For permanent oil sump temperatures of max. 80 °C, NBR seals (acrylonitrile-butadiene rubber) can be used. For higher temperatures, FKM (fluoropolymers) are suggested. It should be noted that elastomers from one or several manufacturers can behave differently. A compatibility test should always be carried out with the elastomers which are actually used. When using Klübersynth GEM 2 oils, we recommend twocomponent paints (catalysed lacquers) for the coating. We further recommend testing the suitability of design materials and paints in contact with the selected lubricants, especially for series application.
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