Mobil SHC 639 is a synthetic lubricant providing exceptional performance in gear and bearing applications. SHC refers to a series of Mobil Lubricants that are made of Synthesized Hydro-Carbon base oil that provides exceptional thermal/oxidative resistance and improved flow properties over conventional based lubricants. The "600" series are rust and oxidation lubricants that are used in a multitude of industrial equipment applications such as bearing, gear boxes, compressors & turbines. 39 represents the thickness of the oil which is an International Standards Organization Viscosity Grade (ISO VG) 1000.
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