UNIREX™ N greases are premium-quality, lithium-complex products suitable for high-temperature service in rolling-element bearings. These versatile greases can be used in a wide range of industrial applications and are particularly recommended for electric-motor lubrication.

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Delivery and return
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Composition and care
Composition and care
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Description

UNIREX™ N greases are premium-quality, lithium-complex products suitable for high-temperature service in rolling-element bearings. These versatile greases can be used in a wide range of industrial applications and are particularly recommended for electric-motor lubrication.

UNIREX N greases are not intended to be used under extreme pressure conditions where extra anti-welding properties are required.

UNIREX N 2 meets the requirements of Lubricating Grease DIN 51825 – K2N – 20L and ISO L-XBDHA 2.

UNIREX N 3 meets the requirements of Lubricating Grease DIN 51825 – K3N – 20L and ISO L-XBDHA 3.

Features and Benefits

Unirex N greases exhibit excellent high and low temperature performance, resistance to water and corrosion, and long service life in a range of bearing applications.

Features Advantages and Potential Benefits
Excellent              high-temperature performance  

Lithium-complex thickener resists softening / running out of bearings at temperatures up to 190°C

 

Outstanding grease life

Laboratory bearing rig tests show outstanding continuous lubrication performance at bearing temperatures of up to 140°C
Very      good       low-temperature characteristics Start-up power requirements are low at temperatures down to at least -20°C. Meets DIN 51825 low temperature torque requirements at -20°C
Excellent mechanical stability Exhibits excellent resistance to softening due to mechanical working
Excellent water and corrosion resistance  

Resists water washout and protects bearings against corrosion

Excellent          performance                      in high-speed applications Channelling characteristics provide excellent performance in high- speed deep-groove ball bearings. Unirex N3 is recommended where DmN (mean bearing diameter X rpm) exceeds 360,000
Applications

UNIREX N 2 is recommended for the lubrication of electric motors. It is suitable for NEMA (National Electric Manufacturer’s Association) Insulation Class A, B, and F motors.

Most of the uses for UNIREX N involve manual methods of application. Although UNIREX N 2 is suitable for use in automatic centralized systems, equipment served by these systems would normally not require the long-life properties of UNIREX N, since one of the functions of automatic systems is to replenish the lubricant at relatively short time intervals. UNIREX N 3 should not be used in such systems.

Specifications and Approvals
This product meets or exceeds the requirements of: 2 3
DIN 51825:2004-06 – K 2 N -20 L X
DIN 51825:2004-06 – K 3 N -20 L X
ISO 6743-9: 2003 L-XBDHA 2 X
ISO 6743-9: 2003 L-XBDHA 3 X
Properties and Specifications
Property 2 3
Grade NLGI 2 NLGI 3
Thickener Type Lithium Complex Lithium Complex
Color, Visual Green Green
Dropping Point, °C, ASTM D2265 210 210
Oil Separation, 30 h @ 100 C, mass%, ASTM D6184 1.5 0.6
Penetration, 100 KX, 0.1 mm, ASTM D217 25 30
Penetration, 60X, 0.1 mm, ASTM D217 280 235
SKF Emcor Rust Test, Distilled Water, ASTM D6138 0 , 1 0 , 1
Viscosity @ 100 C, Base Oil, mm2/s, ASTM D445 12.2 12.2
Viscosity @ 40 C, Base Oil, mm2/s, ASTM D445 115 115
Viscosity Index, ASTM D2270 95 95
Water Washout, Loss @ 79 C, wt%, ASTM D1264 3.7 3.5

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