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Mobilgear SHC MT 68 美孚SHC MT68詳細(xì)說(shuō)明∮桓（瀏覽1948次）
Mobilgear SHC MT 68
Marine Thruster Gear Oil
Product Description
Mobilgear SHC MT 68, a premium performance, fully synthetic marine gear oil is designed to provide optimum equipment protection and oil life even under extreme conditions. Polyalphaolefin (PAO) technology has been selected for its exceptional oxidation resistance and thermal properties, naturally high viscosity index, excellent low temperature fluidity and absence of undesirable compounds that are often found in mineral oils. The high viscosity index and low traction coefficient of this oil combine to provide a potential reduction in power consumption in many gear drives. Mobilgear SHC MT 68 contains an advanced and carefully blended proprietary additive system designed to provide excellent protection against conventional wear modes such as scuffing but also provides a high level of resistance against micropitting fatigue.
Mobilgear SHC MT 68 exceeds the industry requirement for bearing wear protection as measured by the industry standard FAG FE 8 test. Mobilgear SHC MT 68 ’s balanced formulation is able to provide maximum wear and corrosion protection while maintaining compatibility with industry standard gearbox seal materials. In addition, compared to conventional gear oil chemistries, it offers the potential for improved lubrication of gearbox rolling element bearings. Mobilgear SHC MT 68 offers outstanding rust and corrosion protection versus conventional gear oils, including seawater and acidic water protection. It shows no tendency to plug fine filters even when wet and have excellent compatibility with ferrous and non-ferrous metals even at elevated temperatures.
Mobilgear SHC MT 68 is recommended for enclosed marine gear drives including steel-on-steel spur, helical, and bevel gears. The product was designed for heavy duty marine thruster gear applications. It may also be used in gear applications where extreme low and/or high temperatures are encountered and applications where corrosion may be severe. Mobilgear SHC MT 68 enjoys a growing reputation among marine customers and OEMs around the world.
Features and Benefits
Mobil brand lubricants designated as SHC are recognised and appreciated around the world for innovation and outstanding performance. These molecular design PAO synthetic products, pioneered by our research scientists, symbolize the continuing commitment to using advanced technology to provide outstanding products.
A key factor in the development of Mobilgear SHC MT 68 was the close contacts between our scientists and application specialists with key OEMs to ensure that our product offerings will provide exceptional performance with the rapidly evolving marine gear designs and operation. To address the issue of micropitting gear wear, our product formulation scientists designed a proprietary combination of additives which would resist traditional gear wear mechanisms as well as protecting against micropitting. Our formulators chose proprietary PAO synthetic base oils to provide exceptional oil life and deposit control and resistance to thermal/oxidative and chemical degradation, as well as the balance of the performance features. The wax-free nature of the synthetic base oil also provides low temperature fluidity characteristics unmatched by mineral products and is a key benefit for remote, low ambient, applications. Mobilgear SHC MT 68 lubricants offer the following benefits:
FeaturesAdvantages and Potential Benefits
Superb protection from micropitting fatigue wear as well as high resistance to traditional scuffing wearExtended gear and bearing life in marine enclosed gear drives operating under extreme conditions of load, speed and temperature
Excellent resistance to degradation at high temperatureExtended oil life and drain intervals reduced oil consumption and manpower costs
Low traction PAO base stocks for improved gear efficiencyReduced energy consumption and lower operating temperatures
High viscosity index base stocks reduce viscosity change with temperatureAbility to operate at both high and low temperatures: especially critical in marine applications
Excellent resistance to rust and corrosion and very good demulsibilitySmooth, trouble-free operation at high temperatures or in water-contaminated applications
No filter plugging, even in presence of waterLess filter changes and reduced maintenance costs
Excellent compatibility with common gearbox materials of construction and with mineral-based gear oilsEasy changeover from mineral products
Applications
Application Considerations: While the Mobilgear SHC MT 68 is compatible with mineral oil based products mixture may detract from their performance. Consequently it is recommended that before changing a system to Mobilgear SHC MT 68, it should be thoroughly cleaned out and flushed to achieve the maximum performance benefits.
Mobilgear SHC MT 68 is a premium performance, fully synthetic marine gear oil designed to provide optimum equipment protection and oil life even under extreme conditions. They are especially formulated to resist micropitting of modern gearing and can operate in both high and low temperature environments.
The product was designed especially for marine thruster/azimuth gear drives requiring an ISO 68 viscosity gear oil with Extreme Pressure (EP) additive protection. Mobilgear SHC MT 68 has approvals from major marine thruster OEMs such as Brunvoll.
Specifications and Approvals
Mobilgear SHC MT 68 meets or exceeds the following industry specifications:
AGMA 9005-E02-EPX
DIN 51517 CLP (Part 3) X
ISO 12925-1 Type CKD X
Typical Properties
Mobilgear SHC MT 68
ISO Viscosity Grade 68
Viscosity, ASTM D 445
cSt @ 40oC 68
cSt @ 100oC 10.8
Viscosity Index, ASTM D 2270 149
Pour Point, oC, ASTM D 97 -51
Flash Point, oC, ASTM D 92 240
Specific Gravity @15.6 oC kg/l, ASTM D 4052 0.855
Timken OK Load, ASTM D2782, lb 65
FE 8 wear test, DIN 51819-3, D7,5/80-80. Roller wear, mg 2
FZG Scuffing, A/8,3/90, Fail Stage/Rating 13+
FZG Micropitting, FVA 54, Fail Stage/Rating 10/High
4-Ball Wear test, ASTM D 4172, mm (Mod1,800 RPM, 20kg, 54o C, 60 Minutes) 0.37
Rust protection, ASTM D665B, Sea Water Pass
Water Seperability, ASTM D 1401,Time to 40/37/3 at 82o C, minutes 10
Foaming Characteristics, ASTM D 892
Seq II 0/0
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.
The ExxonMobil logotype and Mobilgear SHC are trademarks of Exxon Mobil Corporation, or one of its subsidiaries.
ExxonMobil Marine Limited
Ermyn Way
Leatherhead, Surrey
United Kingdom KT22 8UX
http://exxonmobil.com
Due to continual product research and development, the information contained herein is subject to change without notification. Typical Properties may vary slightly.
Copyright ? 2001-2013 Exxon Mobil Corporation. All rights reserved..
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