Microsoft word - unirex n '09.doc

HIGH TEMPERATURE BEARING GREASE
HIGH TEMPERATURE BEARING GREASE
Unirex N greases exhibit excellent high and
Product Description
low temperature performance, resistance to
water and corrosion, and long service life in a
lithium-complex products suitable for high- range of bearing applications. Unirex N
temperature service in rolling-element bearings. greases offer the following features and
These versatile greases can be used in a wide benefits:
range of industrial applications and are particularly recommended for electric-motor ♦ Excellent high-temperature performance
provided by a lithium-complex thickener
that resists softening / running out of
Unirex N 2 in an NLGI No. 2 grade and is bearings at temperatures up to 190°C
preferred in most cases for application by hand packing or by grease gun. UNIREX N 3 is an Outstanding grease life that is
demonstrated in laboratory bearing rig
applications such as sealed-for-life bearings, tests showing outstanding performance at
vertically mounted bearings, and higher-speed bearing temperatures exceeding 120°C
♦ Very good low-temperature
intended to be used under extreme-pressure characteristics as start-up power
conditions where extra anti-welding properties requirements are low at temperatures
down to at least -29°C and may be
suitable down to -40°C in those
applications where torque is not limiting.
Lubricating Grease DIN 51825 - K2N - 20 and Meets DIN Flow Pressure requirements
at -20°C.
Exhibits excellent mechanical stability
Lubricating Grease DIN 51825 - K3N - 20 and and resistance to softening due to
mechanical workingExcellent water
washout resistance and protects bearings
against corrosion
Primary Applications
♦ Excellent performance in high-speed
Because of their outstanding oxidation stability applications were channelling
and resistance to softening at high temperatures, characteristics provide excellent
performance particularly in high- speed
applications such as oven-conveyor bearings, deep-groove ball bearings. Unirex N3 is
dryer-roller bearings, rotary steam joints, kiln- recommended where Dmn (mean bearing
car bearings, induced-draft fan bearings, and diameter X rpm) exceeds 360,000.
equipment adjacent to high radiant heat such as ovens, soaking pits, etc. *Trademarks of Imperial Oil Limited. Imperial Oil, Licensee. Lubricants and Specialties, Marketing Technical Services
™Trademark of Exxon Corporation. Imperial Oil, Licensee.
UNIREX N 2 is an NLGI No. 2 grade and is service at 175°C. As temperatures approach preferred in most cases for application by hand- 190°C, relubrication intervals should be daily or every shift. Relubrication intervals will, of recommended for the lubrication of electric course, vary widely with the type of service and motors. It is suitable for NEMA (National Electric Manufacturer's Association) Insulation recommendations of the motor manufacturer. Precautions
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 contamination by dust or water. UNIREX N greases are manufactured from high quality petroleum base stocks carefully blended with Most of the uses for UNIREX N involve manual selected soaps and additives. As with all of our methods of application. Although UNIREX N 2 products, good personal hygiene and careful is suitable for use in automatic centralized handling should always be practiced. Avoid systems, equipment served by these systems prolonged contact to skin, splashing into the would normally not require the long-life eyes, ingestion or vapour inhalation. High- properties of UNIREX N, since one of the pressure injection of any grease under the skin functions of automatic systems is to replenish the can cause serious delayed soft tissue damage and lubricant at relatively short time intervals. should be treated immediately by a physician. To avoid injection injuries, inspect greasing equipment regularly for worn hoses and fittings. Keep fingers away from the nozzle and ensure Regardless of the level of oxidation stability of a the nozzle is firmly in place before discharging grease, an increase in temperature will affect the rate of oxidation and thermal deterioration. Please refer to the Material Safety Data Sheet for Consequently, more frequent relubrication is required at higher temperatures. For UNIREX N Note: This product is not controlled under greases, it is recommended that relubrication intervals not exceed one week of continuous Typical Properties
Base Oil Viscosity, ASTM D 445, cSt @ 40°C Penetration, worked 60 strokes, ASTM D 217, mm/10 Penetration change after 100,000 strokes, ASTM D 217, mm/10 Oil Separation, ASTM D 6184, mass % @100°C / 30 hrs EMCOR Corrosion , ASTM D 6138 (Distilled Water), rating Water Washout @ 79°C, ASTM D 1264, mass % Grease life, DIN 51821 (FE-9), L50 hrs @ 140°C Grease life, DIN 51821 (FE-9), L50 hrs @ 160°C The data above is representative of production. Some qualities are controlled by manufacturing specifications while others are not. All may vary within modest ranges. *Trademarks of Imperial Oil Limited. Imperial Oil, Licensee. Lubricants and Specialties, Marketing Technical Services
™Trademark of Exxon Corporation. Imperial Oil, Licensee.

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