Comparison of predicted and measured elastohydrodynamic film thickness in a 20-millimeter-bore ball bearing
John J. Coy, Rama S. R. Gorla, Dennis P. Townsend, Propulsion Laboratory (U.S.), Lewis Research Center, United States. National Aeronautics and Space Administration. Scientific and Technical Information Branch
National Aeronautics and Space Administration, Scientific and Technical Information Branch, 1979 - Technology & Engineering - 26 pages
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20-MILLIMETER-BORE BALL BEARING antiwear additive Archard and Cowking AVRADCOM Research Battelle Memorial Institute bearing was mist bearing was thrust capacitance technique Cleveland Cleveland State University Contact lubrication flow Cowking ref Dimensionless speed parameter Dowson and Higginson Dowson ref Driveshaft Elastohydrodynamic Film Thickness electrical capacitance engine oil meeting experimental data film thickness measurement film thickness reduction Four different lubricants fully flooded inlet Grubin ref H film Hamrock and Dowson Hertz Higginson ref higher speeds hydrocarbon traction fluid inlet shear heating inner race kinematic starvation Lewis Research Center loaded to 90 lubrication flow number Materials parameter maximum contact stress measured film thickness Mech meeting MIL-L-23699A specifications mist lubricated oil meeting MIL-L-23699A outer race paraffinic with additives Polyphenyl ether present data ranged from 400 Semiminor axis shown in figure Surface tension synthetic paraffinic test bearing test rig theoretical predictions Thermal Thermocouple thicknesses were measured thrust loaded viscosity