Operating Characteristics of a High-speed, Jet-lubricated 35-millimeter-bore Ball Bearing with a Single-outer-land Guided CageNational Aeronautics and Space Administration, Scientific and Technical Information Office, 1980 - Ball-bearings - 12 pages |
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2.5 million DN 35-millimeter-bore ball bearing 35-mm-bore bearing angular-contact ball bearing bearing operating Bearing outer-ring temperature Bearing power loss Bearing temperature bearings of similar cage slip decreased centrifugal force cm³/min gal/min combined 667-N combined load contact angle cooling oil flow curves different load conditions effect of load Effect of lubricant Effect of shaft epicyclic cage speed guided cage heat rejection increasing lubricant flow inner-ring temperatures jet lubrication jet velocity Lewis Research Center load conditions tested load of 667 load was doubled lubricant flow rate maximum thrust load MIL-L-23699 specifications Nominal shaft speeds oil flow rate oil-in temperature oil-out temperature Outer-ring cooling oil Parametric tests percent cage slip power loss increased radial load rate on test-bearing rate to test rate was minimal shown in figure single-outer-land single-outer-land-guided cage speed and load strain gage temperature of 394 test bearing Test conditions included thermocouple three different load Thrust and 222 torque readings