Unirex?年代2
油脂
產(chǎn)品描述
Unirex?年代2是鋰復(fù)合增厚高溫潤滑脂,基于波動率較低,合成多元醇酯液,富含違禁添加劑。這是唯一適合高溫應(yīng)用,推薦上操作溫度200oC / 392°F基于ASTM D3336性能。另外這個油脂具有良好的氧化穩(wěn)定性,防銹特性。
特性和好處
Unirex年代2潤滑脂是專門為高溫應(yīng)用開發(fā)的基于礦物油的油脂可能無法提供足夠的保護(hù)。酯基液的波動性較低的工作溫度有關(guān),這可能導(dǎo)致潤滑脂壽命長相比傳統(tǒng)礦物油的產(chǎn)品。Unirex年代2適用于高溫操作頻繁relubrication是不切實際的。
本產(chǎn)品提供以下性能特點:
突出的耐高溫性能和更好的潤滑和磨損比傳統(tǒng)油脂保護(hù)
低的基礎(chǔ)股票波動性提供潤滑油壽命長和潛在延長再潤滑間隔。
上操作溫度200oC / 392°F基于ASTM D3336高溫壽命性能
應(yīng)用程序
應(yīng)用程序指出:酯基礎(chǔ)油Unirex年代2不兼容許多常見的彈性體密封材料。例如,它可能會導(dǎo)致軟化或腫脹丁腈橡膠密封。建議設(shè)備制造商或你的?？松梨诖碜稍冴P(guān)于密封在一個特定的應(yīng)用程序的兼容性。
Unirex年代2是推薦的?？松梨跒閲?yán)重的應(yīng)用程序包括:
輸送機(jī)軸承在窯和烤箱
鋼廠鋼包軸承
噴氣式飛機(jī)起動離合器總成
玻璃纖維制造的關(guān)鍵烤箱軸承
Unirex? S 2
Grease
Product Description
Unirex? S 2 is a lithium complex thickened high-temperature grease, based on a low volatility, synthetic polyol ester fluid, fortified with performance-enhancing additives. It is uniquely suited for high temperature applications, with an upper operating temperature recommendation of 200o C / 392°F based upon ASTM D3336 performance. Additionally this grease possesses good oxidation stability, and rust preventive characteristics.
Features and Potential Benefits
Unirex S 2 grease is specially developed for high temperature applications where mineral oil based greases may not provide adequate protection. The ester base fluid has a low volatility at the working temperatures involved, this can lead to long grease life when compared to a conventional mineral oil product. Unirex S 2 is suitable for high temperature operations where frequent relubrication is not practical.
This product offers the following performance features:
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Outstanding high-temperature performance with better lubricity and wear protection than conventional grease
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Low base stock volatility helping to provide long lubricant life and potentially extend re-lubrication intervals.
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An upper operating temperature of 200o C /392°F based upon ASTM D3336 High Temperature Life performance
Applications
Application notes: The ester base oil of Unirex S 2 is not compatible with many common elastomer seal materials. For example, it may cause a softening or swelling of NBR seals. It is recommended that the equipment manufacturer or your ExxonMobil representative be consulted regarding seal compatibility in a specific application.
Unirex S 2 is recommended by ExxonMobil for severe applications including:
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Conveyor bearings in kilns and ovens
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Steel mill ladle bearings
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Jet aircraft starter clutch assemblies
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Critical oven bearings in Fiberglas manufacture
Typical Properties
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Property
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Unirex S 2
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NLGI Grade
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2
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Thickener Type
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Li-complex
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Color, visual
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Orange/Brown
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Worked Penetration,, ASTM D 217, mm/10
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280
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Dropping Point ASTM D 2265, oC
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280
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4-Ball Wear, scar diameter, ASTM D 2266, mm
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0.60
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Viscosity of Base Oil at 40 oC, ASTM D 445, cSt
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170
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Oil Separation, ASTM D 1742, mass %
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3
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Lubrication life at 204 oC, ASTM D 3336, hours
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500
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Corrosion Prevention, ASTM D 1743, Rating
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Pass
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4-Ball Weld Load, ASTM D 2596, Kg
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160
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Health and Safety
Based on available information, this product is not expected to produce adverse effects on health when used for the intended application and the recommendations provided in the Material Safety Data Sheet (MSDS) are followed. MSDS's are available upon request through your sales contract office, or via the Internet. This product should not be used for purposes other than its intended use. If disposing of used product, take care to protect the environment.
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