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Klübersynth G 4-68
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Klübersynth G 4-68
Synthetic high-performance gear oil
Application Klübersynth G 4-68
Klübersynth G 4 was especially developed for the lubrication of spur, bevel and planetary gears. It can also be used for plain and rolling bearings.
Performance, Features & Benefits of Klübersynth G 4-68 are:
- Sufficient scuffing protection
- Good wear protection
- Excellent ageing and oxidation resistance
- Wide service temperature range due to good viscosity-temperature behaviour
- Low foaming tendency
- Energy savings due to optimised friction behaviour
- Very good protection of nonferrous metals
If you have any questions, please contact OilOnline Technical Helpdesk
Product Description Klübersynth G 4-68
Klübersynth G 4 is a synthetic high-performance gear oil based on polyalphaolefin and selected additives. Klübersynth G 4 shows high scuffing strength. Gears are sufficiently protected against scuffing even at extremely high peak loads, vibrations or oscillations. The good wear protection of the gear components ensures that their calculated service life is achieved, leading to lower maintenance and repair costs. Klübersynth G 4 offers a much longer service life than mineral oils due to its excellent ageing and oxidation resistance; thus service intervals can be extended and maintenance costs reduced. The product's low foaming tendency and anticorrosive properties enable problem-free gear operation. Klübersynth G 4 is neutral towards most sealing materials such as NBR or FKM. Oil leakage leading to contamination is prevented. Due to the product's good compatibility with brass, bronze and copper, it may be used for the lubrication of applications where the corrosion of nonferrous metals is an issue. The good viscosity-temperature behaviour supports the formation of a sufficient lubricant film across a wide service temperature range. Therefore, a single viscosity grade can cover both low and high temperatures in many applications. The optimised friction behaviour enabled by the carefully selected base oils reduces power loss and improves gear efficiency. Klübersynth G 4 is recommended and approved for ITEMA / Somet weaving machines and Stäubli gearboxes. By using Klübersynth G 4 you can benefit from a number of advantages that will help you save costs easily and efficiently. We look forward to hearing from you.
Typical Characteristics
| Product specifications : | Klübersynth G 4-68 | |
| Article number | 012186 | |
| Lower service temperature | -40 °C / -40 °F | |
| Upper service temperature | 140 °C / 284 °F | |
| Colour space | yellow | |
| Density, 20 °C | DIN 51757 | approx. 0.86 g/ cm³ |
| Kinematic viscosity, 40 °C | DIN 51562 pt. 01/ASTM D-445/ ASTM D 7042 |
approx. 68 mm²/ s |
| Kinematic viscosity, 100 °C | DIN 51562 pt. 01/ASTM D-445/ ASTM D 7042 |
approx. 10 mm²/ s |
| Viscosity index, | DIN ISO 2909 | approx. 140 |
| Copper corrosion, 24 h/100°C | DIN EN ISO 2160 | 1 - 100 corrosion degree |
| Pour point, | DIN ISO 3016 | <= -40 °C |
| Flash point, Cleveland, open-cup apparatus |
DIN EN ISO 2592 | >= 200 °C |
| FZG scuffing test, A/8.3/90, scuffing load stage |
DIN ISO 14635-1 | >= 12 |
| 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 G 4 can be used for immersion, immersion circulation and injection lubrication. The use of drip-feed oilers, brushes, oil cans or suitable automatic lubricating systems is also possible. When using automatic lubricating systems, please note the manufacturer's instructions regarding the maximum permissible viscosity. The low-viscosity varieties are also used for oil mist lubrication. Klübersynth G 4 is miscible with mineral oils. However, for the Klübersynth G 4 oil to deliver its full performance, any residues of a previously used mineral oil should not exceed 5 % in quantity. For use at permanent temperatures of 80 °C max., seals made of NBR may be used. For higher temperatures, seals made of FKM should be chosen. It should be noted that elastomers from one or several manufacturers can behave differently; therefore tests should be performed. For checking the contact pattern during running-in, the inspection paint Klübertop P 39-462 Spray (Art. No. 081295) can be used.
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