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Mobilgear SHC Series
Gear Oils
Product Description
The Mobilgear SHC Series lubricants are supreme performance heavy-duty gear oils primarily designed for all kinds of enclosed
gearing as well as plain ａnd rolling element bearings. They are formulated from wax-free polyalphaolefin (PAO) synthetic base stocks
that have exceptional oxidation ａnd thermal properties ａnd excellent low temperature fluidity. The combination of a naturally high
viscosity index ａnd a unique additive system enables these products to provide outstanding performance under severe high ａnd low
temperature operating conditions. The wax-free nature of the PAO base oils also contributes to the products’ excellent low temperature
performance. They have outstanding EP properties ａnd resistance to shock loading. The base stocks have inherently low traction
properties that result in low fluid friction in the load zone of non-conforming surfaces such as gears ａnd rolling element bearings.
Reduced fluid friction produces lower operating temperatures ａnd improved gear efficiency.
The Mobilgear SHC Series covers a very wide viscosity range, from ISO VG 150 to 6800. Accordingly, they find application in a wide
range of enclosed gear applications, as well as plain ａnd rolling element bearings. Because of the very high viscosities available, this
family can meet the lubrication needs of very slow speed ａnd high load/high temperature gears ａnd bearings; they are ideal for
situations in which conventional products operate in the boundary regime. They may be substituted for all-loss lubricants in certain open
gear applications, but cost of equipment modifications needs to be balanced against the benefits of recirculating the lubricant.
Mobilgear SHC Series lubricants are the products of choice for many OEMs ａnd customers world-wide based on their wide application
range ａnd superb performance in tough situations.
Features & Benefits
The Mobilgear SHC family of lubricants is a leading member of the SHC brand of products that are world-renowned for their innovation
and performance. These products are based on synthesised PAO base oils pioneered by our scientists ａnd which are now the leading
non-mineral base oil used in finished lubricants. These molecular design base stocks provide many benefits not possible with mineral
stocks, ａnd they result in final products with unique performance features ａnd customer benefits.
Our formulation scientists have used a proprietary additive combination that fortifies the PAO base oils to provide excellent EP ａnd antiwear
performance, even in shock load situations. The resulting finished products have shown exceptional performance in OEM
evaluations, customer field tests ａnd commercial use. The higher viscosity grades are particularly effective in low-speed, high load, high
temperature situations ａnd provide excellent gear & bearing protection, longer oil life ａnd excellent all-round service compared with
conventional products.
Specific features ａnd potential benefits for the Mobilgear SHC Series of lubricants include:
Due to continual product research ａnd development, the information contained herein is subject to change without notification.
Typical properties may vary slightly. Additional health ａnd safety information on this product can be found on the Material Safety Data Sheet, which is available on line at
www.imperialoil.ca, or by contacting Lubricants ａnd Petroleum Specialties, Technical Help Desk, 1-800-268-3183.
© 2003 Imperial Oil.
Features Advantages ａnd Potential Benefits
Outstanding load-carrying ａnd antiwear properties Extended gear life ａnd reduced maintenance costs
Very high viscosity grades available, without reduction of
properties or performance capability
Provides excellent EHL film protection of gears ａnd bearings even
at slow speeds, high loads ａnd high temperatures
Can be used to convert all-loss systems to circulation
Can replace grease in some applications resulting in plant product
consolidation
High viscosity index ａnd wax-free base oils Trouble-free operation over a wide temperature range particularly
at extremely low temperatures.
Low traction properties Improved gear efficiency ａnd lower operating temperatures lead
to lower operating costs
Outstanding thermal/oxidation resistance ａnd long product life Reduced lubricant consumption, reduced product ａnd change-out
costs
Light colour Minimises need for gear cleaning prior to inspections, reducing
maintenance costs
Applications
Application Considerations: While the Mobilgear SHC Series are compatible with mineral oil based products, admixture may detract
from their performance. Consequently it is recommended that before changing a system to one of the Mobilgear SHC Series, it should
be thoroughly cleaned out ａnd flushed to achieve the maximum performance benefits.
Mobilgear SHC Series oils are recommended for all types of enclosed steel-on-steel gear drives. They are suitable for both circulation
and splash lubrication systems. The range of viscosity choices in the Mobilgear SHC Series from ISO 150 to ISO 6800, provides the
right lubrication option for low temperature applications where pour points of -46ºC are required to high temperature applications where
operating temperatures of 121ºC are encountered. They are particularly recommended for gear sets operating under heavy or shock
loads ａnd low speeds where boundary lubrication may prevail. For clarity, applications for this product family are described for two
viscosity ranges, as follows:
Mobilgear SHC 150 to 1500 - Industrial enclosed spur, helical ａnd bevel gear drives, especially heavy-duty applications especially
those found in mining, chemical processing, metals ａnd paper sectors.
Mobilgear SHC 150 to 1500 - Industrial gearing for conveyers, agitators, dryers, extruders, fans, mixers, presses, pulpers, pumps
(including oil well pumps), screens, extruders ａnd other heavy duty applications
Mobilgear SHC 150 to 1500 - Marine gearing including main propulsion, centrifuges, deck machinery such as winches, windlasses,
cranes, turning gears, pumps, elevators ａnd rudder carriers
Mobilgear SHC 3200 ａnd 6800 - Industrial enclosed spur, helical ａnd bevel gears, especially slow speed, and/or high load units
Mobilgear SHC 3200 ａnd 6800 - Plain ａnd rolling element bearings, especially in slow speed, and/or high load applications
Mobilgear SHC 3200 ａnd 6800 - Railroad DC Traction Motor drives
Mobilgear SHC 3200 ａnd 6800 - Certain open gear applications such as oiling pinions or specially designed circulation systems
Due to continual product research ａnd development, the information contained herein is subject to change without notification.
Typical properties may vary slightly. Additional health ａnd safety information on this product can be found on the Material Safety Data Sheet, which is available on line at
www.imperialoil.ca, or by contacting Lubricants ａnd Petroleum Specialties, Technical Help Desk, 1-800-268-3183.
© 2003 Imperial Oil.
Typical Properties
Mobilgear SHC 150 220 320 460 680 1000 1500 3200 6800
ISO Viscosity Grade 150 220 320 460 680 1000 1500 3200 －－
Viscosity, ASTM D 445
cSt @ 40ºC 150 220 320 460 680 1000 1500 3025 8100
cSt @ 100ºC 19.5 26 35 46 62 81 106 171 350
Viscosity Index, ASTM D 2270 150 150 155 155 160 160 160 160 170
Pour Point, ºC, ASTM D 97 -45 -36 -33 -27 -27 -24 -18 -9 -6
Density @15.6 ºC kg/l, ASTM D 4052 0.86 0.87 0.88 0.87 0.89 0.87 0.88 0.89 0.90
Flash Point, ºC, ASTM D 92 222 232 238 245 256 - - - -
Timken OK Load 60 60 60 60 60 60 60 60 60
4-Ball EP Teat, ASTM D 2783:
Weld load, Kg 250 250 250 250 250 250 250 250 250
Load Wear Index, Kgf 48 48 48 48 48 48 48 48 48
FZG test, DIN 51354, Failure Stage 13+ 13+ 13+ 13+ 13+ 13+ 13+ 13+ 13+
Copper Corrosion, ASTM D130, 3 hrs
@ 100ºC
1B 1B 1B 1B 1B 1B 1B 1B 1B
Demulsibility, EP Oils, ASTM D 2711-
2, Free water, ml
85 85 85 85 85 85 85 85 85
Foaming Characteristics, ASTM D 892:
Seq. I, Tendency/Stability, ml/ml 0/0 0/0 0/0 0/0 0/0 0/0 0/0 0/0 0/0
Seq. II, Tendency/Stability, ml/ml 0/0 0/0 0/0 0/0 0/0 0/0 0/0 0/0 0/0
Seq. III, Tendency/Stability, ml/ml 0/0 0/0 0/0 0/0 0/0 0/0 0/0 0/0 0/0
Rust Protection, ASTM D 665, Sea
Water
Pass Pass Pass Pass Pass Pass Pass Pass Pass
