Characteristics of three typical lubricants

Table
Characteristics of three typical lubricants
lubricant relative viscosity (air = 1) typical minimum film thickness in bearing applications (in.) typical unit load in bearing applications (lb per sq in.)
air 1 0.00005–0.0004 1–10
water 33 0.0004–0.001 25–75
oil 1,000 0.002–0.004 200–500
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Universalium. 2010.

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