Mobil Unirex N 3 (35 lb Pail)

SKU
XOM102743
$149.00
Mobil 102743 https://d2706ruq7qkfdn.cloudfront.net/media/catalog/product/cache/8edfb821581a58e3a857c2776d875bc7/u/n/unirex_n3_5gal_pail.png

This product currently has a lead time of 10-15 business days, sometimes longer.

Mobil Unirex N 3 is an NLGI Grade 3 premium lithium complex thickened bearing grease. It is suitable for high temperature service in rolling element bearings and a variety of other industrial applications, especially electric motor bearings. Unirex N 3 meets the requirements of Lubricating Grease DIN 51825 - K3N - 20 and ISO L-XBDHA 3. The lithium complex thickener resists softening / run out of bearings at temperatures to 190°C. Laboratory bearing rig tests show outstanding continuous lubrication performance at bearing temperatures of up to 140°C.

Unirex N 3 is not intended to be used under extreme pressure (EP) conditions where extra anti-welding properties are required. It is recommended for special applications such as sealed-for-life electric motor bearings, vertically mounted bearings, and higher-speed applications where DmN (mean bearing diameter X rpm) exceeds 360,000.

Product Data Sheet

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

UNIREX N 2 is an NLGI No. 2 grade and is preferred in most cases for application by hand-packing or by grease gun. 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.


UNIREX N 3 is an NLGI No. 3 grade and is used for special applications such as sealed-for-life bearings, vertically-mounted bearings, and higher-speed bearings.


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.

Unirex N Series meets or exceeds the requirements of: 2 3
DIN 51825: (2004-06) K2N-20L K3N-20L
UNIREX N 2 3
Thickener Type Lithium-complex Lithium-complex
NLGI Grade 2 3
Color, Visual Green Green
Texture Smooth, Buttery Smooth, Buttery
Dropping Point, ASTM D 2265, °C 230 230
Base Oil Viscosity, ASTM D 445, cSt @ 40°C 115 115
Base Oil Viscosity Index, ASTM D 2270 95 95
Penetration, worked 60 stokes, ASTM D 217, mm/10 280 235
Penetration change after 100,000 strokes, ASTM D 217, mm/10 25 30
Oil Separation, ASTM D 6184, mass % @ 100°C / 30 hrs 1.5 0.6
EMCOR Corrosion , ASTM D 6138 (Distilled Water), rating 0,1 0,1
Water Washout @ 79°C, ASTM D 1264, mass % 3.7 3.5
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Browse 2 questions Browse 2 questions and 2 answers
Can Mobil Polyrex EM 103 Grease be used instead of Mobil UNIREX N3?
A shopper on Dec 27, 2018
BEST ANSWER: These two products cannot be mixed, because they have different thickeners. One is a polyurea and the other lithium. To replace one with the other you would need to completely purge and then use.
Is there an (Material Stock Number (MSN or NSN) National Stock Number) for the Unirex N 3 Lithium Complex Grease (35lb) 5 Gal bucket?
A shopper on May 16, 2018
BEST ANSWER: The product number for the Unirex N3 is XOM102743. According to Mobil there is no NSN or MSN for the Unirex N3.