POLYREX EM
電機軸承潤滑脂
產(chǎn)品描述
超級美孚?POLYREX EM系列潤滑脂是專為電機軸承。先進的增稠劑配方和專有的制造技術(shù)提供了改進的軸承性能和長電機壽命的保護。
應(yīng)用
美孚EM潤滑脂推薦的許多主要的軸承和電機制造商的長壽命潤滑電機滾珠軸承和滾柱軸承。
美孚EM 103更具體的建議，應(yīng)用如垂直安裝的軸承，還是非常大的電機的圍追堵截的一致性可能需要由OEM，和低噪聲性能是不需要的。
美孚EM潤滑脂已被證明是與埃克森美孚公司的復合鋰基潤滑脂兼容，以及競爭力的電動馬達礦物聚脲產(chǎn)品，如ASTM d6185方法確定。有關(guān)潤滑脂兼容性的具體問題，請與您的美孚代表聯(lián)系。
主要應(yīng)用包括：
電機軸承
散熱片風扇軸承
高溫泵軸承
工廠填充，密封的生活球軸承
在需要低油分離的高溫下工作的球或滾子軸承
美孚EM球或滾子軸承在噪聲敏感的環(huán)境中工作
Mobil Polyrex? EM
Electric Motor Bearing Grease
Product Description
Super-premium Mobil Polyrex? EM Series greases are specially formulated for electric-motor bearings. The advanced thickener formulation and proprietary manufacturing techniques provide improved bearing performance and protection for long electric motor life.
Features and Benefits
Mobil Polyrex EM and Mobil Polyrex EM 103 offer the following features and benefits:
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Features
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Advantages and Potential Benefits
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Outstanding grease life
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Outstanding long-life, high-temperature lubrication of ball and roller bearings, particularly in sealed-for-life applications
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Advanced polyurea thickener
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Increased durability versus conventional polyurea greases when subjected to mechanical shear forces
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Excellent corrosion resistance
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Mobil Polyrex EM and Mobil Polyrex EM 103 provide protection against rust and corrosion. Mobil Polyrex EM provides additional protection under mild salt-water wash conditions versus Polyrex EM 103
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Low-noise properties
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Mobil Polyrex EM is suitable for lubrication of ball bearings in many noise-sensitive applications
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Applications
Mobil Polyrex EM greases are recommended by many major bearing and electric motor manufacturers for long-life lubrication of electric motor ball and roller bearings.
Mobil Polyrex EM 103 is more specifically recommended for applications such as vertically mounted bearings, or very large motors where a stiffer grease consistency may be required by the OEM, and low noise properties are not required.
Mobil Polyrex EM greases have been shown to be compatible with a number of ExxonMobil lithium complex greases, as well as competitive electric motor mineral polyurea products, as determined by the methodology of ASTM D6185. For specific questions about grease compatibility, contact your Mobil representative.
Key applications include:
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Electric motor bearings
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Fin fan bearings
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High-temperature pump bearings
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Factory-filled, sealed-for-life ball bearings
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Ball or roller bearings operating at high temperatures where low oil separation is required
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Mobil Polyrex EM for ball or roller bearings operating in noise sensitive environments
Specifications and Approvals
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Mobil Polyrex EM meets or exceeds the requirements of:
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Mobil Polyrex EM
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Mobil Polyrex EM 103
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DIN 51825: (2004-06)
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K2P-20
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Typical Properties
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Mobil Polyrex EM
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Mobil Polyrex EM 103
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NLGI Grade
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2
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3
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Color
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Blue
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Blue
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Base Oil Viscosity, ASTM D 445
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cSt @ 40°C
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115
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115
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cSt @ 100°C
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12.2
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12.2
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Viscosity Index, ASTM D 2270
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95
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95
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Penetration, ASTM D217 worked, 60x, mm/10
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285
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250
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Penetration Change after 100.000 strokes, ASTM D217, mm/10
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40
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40
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Dropping Point, ASTM D 2265, °C (°F)
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260
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270
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Oil separation test, ASTM D 1742, %
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0.5
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0.1
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High Temperature Grease Life, ASTM D 3336, Hours @ 177°C
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750+
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750+
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4-Ball Wear Scar, ASTM D 2266, @ 40kg, 1200 rpm, 75°C, 1 hr, mm
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0.41
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0.6
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Low Temperature Torque, ASTM D 1478, g-cm @ -29°C
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Starting
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7500
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9300
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Running
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800
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1000
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EMCOR Corrosion Performance, 10% Synthetic Sea Water ASTM D 6138 (Prepared As Per ASTM D 665B)
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0,1 (No Rust)
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Rust Protection, ASTM D 1743, Distilled Water
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Pass
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Pass
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Copper Corrosion Resistance, ASTM D 4048
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1A
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1A
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Water Washout, ASTM D 1264, %
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1.9
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0.8
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