Mobil Velocite Oil Numbered Series Spindle and Hydraulic Oils
ng>Product Descriptionng>
The Mobil Velocite Oil Numbered Series oils are premium performance products primarily designed for the
lubrication of high-speed spindles in machine tools. They are also used in some critical hydraulic, circulation
systems and air line oilers where the appropriate viscosity grade is selected. They are formulated from select
high-quality, low viscosity base oils and additives that impart good resistance to oxidation and protection from
rust and corrosion. They possess very good resistance to foaming and separate readily from water.
ng>Features and Benefitsng>
The Mobil Velocite Oil Numbered Series provide exceptional lubrication of close-tolerance bearings which helps
keep the bearings running cool and helps maintain the precision required by many of today's critical machine
tools. Although the Mobil Velocite Oil Numbered Series oils were designed for spindle bearings, they exhibit the
required properties to function as low pressure hydraulic and circulating oils as long as the proper viscosity is
selected. This feature can help minimise inventory costs and reduce the potential for product misapplication.
ng>Features Advantages and Potential Benefits
ng>Good Oxidation Resistance Helps reduce critical deposit formationImproves oil life
Improves equipment lifeProvides increased precision
long-term
Very Good Rust and Corrosion Protection
Resists emulsion formationKeeps moisture out of critical
lubrication areasAllows easy removal of moisture from
system reservoirs
Effective Water Separation
ng>Applications
ng>• High speed spindle bearings in machine tools and equipment where high speeds and fine clearances are
involved
• Precision grinders, lathes, jig borers and tracer mechanisms
• Velocite Oil No 3 is recommended for "zero clearance" type spindle bearings which operate with extremely
close clearances
• For sleeve type spindle bearings having greater clearances, the choice of viscosity depends on the relation
between clearance and spindle speed
• Low pressure hydraulic systems where appropriate viscosity is selected
• Air line oilers (Mobil Velocite Oil No. 10)
• For some sensitive instruments such as telescopes, laboratory equipment, etc.
ng>Specifications and Approvals
ng>Mobil Velocite Oil Numbered Series No 3 No 4 No 6 No 8 No 10
meets or exceeds the following industry
specifications:
Cincinnati Machine P-65 X
Cincinnati Machine P-62 X
Cincinnati Machine P-45 X
ng>Typical Propertiesng>
Mobil Velocite Oil Numbered Series No 3   No 4   No 6   No 8   No 10
ISO VG                                               2         5       10      15       22
Viscosity, ASTM D 445
cSt @ 40ºC                                       2.1     4.83    10.0   15.0    22.0
cSt @ 100ºC                                    0.95     1.53    2.62   3.28    4.0
Total Acid Number,

ASTM D 974, mgKOH/g                     0.06    0.06     0.06   0.06    0.1
Copper Strip Corrosion,

3 hrs @ 100º C,                                 1A       1A       1A      1A      1A
ASTM D 130
Rust Characteristics, Proc A,

ASTM D 665                                       Pass    Pass   Pass    Pass  Pass
Pour Point, ºC, ASTM D 97

                                                           -36 -    15       -15     -9 -     30
Flash Point, ºC, ASTM D 92

                                                             84     102      180    194     212
Density @ 15º C,

ASTM D 4052, kg/L                             0.802  0.822  0.844  0.854  0.862
ng>Health and Safetyng>
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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