Kluber Lubrications Klubersynth GEM 4 N Series — Synthetic High-performance Gear and Multipurpose Oil
with KluberComp Lube Technology:

Klubersynth GEM 4 N is a synthetic high-performance gear and multipurpose oil based on polyalphaolefin satisfying the growing requirements and increasing power density of modern gears. Klubersynth GEM 4 N includes KluberComp Lube Technology, i.e. it is based on especially high-grade raw materials and advanced additives, enabling maximum performance in the lubrication of all gear components. Klubersynth GEM 4 N clearly exceeds CLP requirements according to DIN 51517-3. Corresponding gears can be switched to Klubersynth GEM 4 N without prior consultation with the gear manufacturer provided the general application notes are observed.

Klubersynth GEM 4 N offers high scuffing load capacity. Gears are sufficiently protected against scuffing even at extremely high peak loads, vibrations or oscillations. The excellent wear protection of both gears and rolling bearings ensures that the service life calculated for the lubricated components is achieved, leading to lower maintenance and repair costs. The oil's high micropitting resistance of GFT greater than or equal to 10 according to FVA 54/7 (tested at 90, 60 and 40 C) offers sufficient protection to gears that are subject to high loads and would normally be susceptible to this type of damage. Klubersynth GEM 4 N offers a much longer service life than mineral oils due to the excellent ageing and oxidation resistance of the selected raw materials; thus service intervals can be extended and maintenance costs reduced. The product's low foaming tendency and anti-corrosive properties enable problem-free gear operation. Freudenberg seals made of 72 NBR 902, 75 FKM 585, 75 FKM 260466 and 75 FKM 170055 are statically and dynamically resistant to Klubersynth GEM 4 N. Leakage and oil contamination are prevented. The excellent viscosity-temperature behaviour supports the formation of a sufficient lubricant film across a wide service temperature range, even at elevated and high temperatures.

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. WECs have been known as a life-reducing failure mode among wind turbine operators, bearing manufacturers and lubricant formulators. Our intensive research and testing activities reveal the excellent protection against WEC provided by the additives contained in Klubersynth GEM 4 N. Klubersynth GEM 4 N is approved by Siemens-Flender, SEW Eurodrive, Getriebebau Nord, Lenze, Moventas, Bonfiglioli, Rexnord, Hansen, Brevini, Stöber Antriebstechnik, ZAE Antriebssysteme, David Brown, FLSmidth MAAG Gears, etc. Klubersynth GEM 4-320 N is approved for use in wind power plants by Winergy, Moventas, ZF WP, Bosch Rexroth, ACCIONA ENERGY, and many more. By using Klubersynth GEM 4 N you can benefit from a number of advantages that will help you save costs easily and efficiently.

Features:

High scuffing protection

Excellent wear protection for gears and rolling bearings

Good shear stability for reliable lubricant film formation

High micropitting resistance

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

Good elastomer compatibility

Approvals by numerous gear OEMs