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dau-nhot-mobil-unirex n3
dau-nhot-mobil-unirex n3(02)

Mỡ chịu nhiệt Mobil Uniex N3

Mỡ Bôi Trơn Chịu Nhiệt (Mobil)

Mobil UNIREX N mỡ là chịu nhiệt chất lượng cao, sản phẩm lithium-phức tạp phù hợp cho sử dụng ở nhiệt độ cao trong vòng bi lăn chi tiết. Các loại mỡ đa năng có thể được sử dụng trong một loạt các ứng dụng công nghiệp và được đề nghị đặc biệt để bôi trơn động cơ điện.
Price per Unit (KG): Call for price

Description

Product 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 2 in an NLGI No. 2 grade and is preferred in most cases for application by hand packing or by grease gun. UNIREX N 3 is an NLGI No. 3 grade often used for special applications such as sealed-for-life electric motor bearings, vertically mounted bearings, and higher-speed applications. 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.

Applications

Because of their outstanding oxidation stability and resistance to softening at high temperatures, UNIREX N greases may be used in many applications such as oven-conveyor bearings, dryer-roller bearings, rotary steam joints, kiln-car bearings, induced-draft fan bearings, and equipment adjacent to high radiant heat such as ovens, soaking pits, etc.

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.

Regardless of the level of oxidation stability of a grease, an increase in temperature will affect the rate of oxidation and thermal deterioration. Consequently, more frequent relubrication is required at higher temperatures. For UNIREX N greases, it is recommended that relubrication intervals not exceed one week of continuous service at 175°C. As temperatures approach 190°C, relubrication intervals should be daily or every shift. Relubrication intervals will, of course, vary widely with the type of service and should be based primarily on the recommendations of the motor manufacturer.

Features and Benefits

Unirex N greases exhibit excellent high and low temperature performance, resistance to water and corrosion

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  Start-up power requirements are low at temperatures 
down to at least -20°C and may be suitable at temperatures down to -30°C in those applications where torque is not limiting. Meets DIN 51825 low temperature
Very good low-temperature characteristics  
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

 

Typical Properti

 

Color, Visual  3
Thickener Type  Lithium-complex 
NLGI Grade  3
Color, Visual  Green
Texture Smooth, Buttery 
Dropping Point, ASTM D 2265, °C 230
Base Oil Viscosity, ASTM D 445, cSt @ 40°C  115
Base Oil Viscosity Index, ASTM D 2270 95
Penetration, worked 60 stokes, ASTM D 217, mm/ 235
Penetration change after 100,000 strokes, ASTM D 217, mm/10 30
Oil Separation, ASTM D 6184, mass % @100°C / 30 hrs  0.6
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