Effect of two inner-ring oil-flow distribution schemes on the operating characteristics of a 35-millimeter-bore ball bearing to 2.5 million DN
Fredrick T. Schuller, Stanley I. Pinel, Hans R. Signer, United States. National Aeronautics and Space Administration. Scientific and Technical Information Branch
National Aeronautics and Space Administration, Scientific and Technical Information Branch, 1985 - Technology & Engineering - 11 pages
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2.5 million DN 25 percent 50-percent flow axial grooves bearing bore bearing inner bearing power loss cage slip increased cmVmin 0.20 gal/min combined load contact angle cool the inner cooling fig cooling oil flow Cooling the outer double-inner-land-guided cage equal inner heat rejection increased with increasing increasing shaft speed inner-ring temperature load conditions load of 667 loss as obtained Lubricant flow rate lubricated the bearing nominal speed oil flow rates oil flow supplied oil-flow distribution schemes oil-inlet temperature onflow to Inner-ring Outer ring cooled Outer-ring cooling oil outer-ring temperature Parametric tests percent cage slip percent flowed axially Percent of total radial holes rate of 760 rate to inner rate to test ring on bearing shown in figure speed and lubricant speed of 72 speed on test split-inner-ring ball bearing strain gage test bearing temperature Test conditions tests 50 percent thermocouple Thrust and 222 thrust load torque measurements total oil flow