In the humid environment, condensation to form in the rolling bearing and cause corrosion, resulting in reduced bearing life, through the careful selection of fat to lubricate, to reduce condensation of moisture. Sodium soap thickened with lipid absorption ability of water vapor, but softened by too much moisture absorption, outflow bearing; lithium soap grease though not absorb moisture, but by adding the appropriate additives. Can provide good corrosion resistance, some contain synthetic resin thickening agent can also provide excellent corrosion resistance, extending bearing life.

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