Mobil SHC™ 639 is a premium synthetic gear and bearing oil, part of the Mobil SHC 600 Series, designed to provide exceptional performance in industrial applications operating under extreme conditions. With an ISO viscosity grade of 1000, it is particularly suited for heavily loaded gear and bearing systems requiring high-viscosity lubricants.

 Key Features & Benefits

• Exceptional Thermal and Oxidation Stability: Ensures extended oil life and reduces maintenance costs.

• High Viscosity Index and Absence of Wax: Maintains viscosity and film thickness at high temperatures, enabling exceptional low-temperature performance.

• Low Traction Coefficient: Enhances gear efficiency and lowers operating temperatures, contributing to energy savings.

• High Load-Carrying Capacity: Protects equipment under heavy loads, extending component life. Mobil

• Balanced Additive System: Provides rust and corrosion protection, foam control, and air release properties.

• Energy Efficiency: Demonstrated up to 3.6% improvement in energy efficiency in controlled laboratory testing.

? Typical Applications

• High-load gearboxes, especially high-ratio/low-efficiency worm gears.

• Remotely located gearboxes where oil change-out is difficult.

• Low-temperature applications like ski lifts.

• Mixer roll bearings and roll neck bearings operating at high temperatures.

• Plastic calenders and severe centrifuge applications, including marine centrifuges.

• Railroad A/C traction drives.

• Oil-flooded rotary screw compressors compressing natural gas, field gas gathering, CO₂, and other process gases.

 Product Specifications

• ISO Viscosity Grade: 1000

• Viscosity Index: 170

• Flash Point:

  250°C

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• Kinematic Viscosity @ 100°C: ~50.7 mm²/s

• Density @ 15°C: ~0.87 g/cm³

• Pour Point: -30°C

• Color: Red

• Container Size: 208 liters (55 gallons)