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Effects of ultra-clean and centrifugal filtration on rolling-element bearing lifeFatigue tests were conducted on groups of 65-mm bore diameter deep-groove ball bearings in a MIL-L-23699 lubricant under two levels of filtration to determine the upper limit in bearing life under the strictest possible lubricant cleanliness conditions. Bearing fatigue lives, surface distress and weight loss were compared to previous bearing fatigue tests in contaminated and noncontaminated oil filters having absolute removal ratings of 3, 30, 49, and 105 microns, with lubricant and sump temperatures maintained at 347 K. Ultra clean lubrication was found to produce bearing fatigue lives that were approximately twice that obtained in previous tests with contaminated oil using 3 micron absolute filtration. It was also observed that the centrifugal oil filter has the same effectiveness as a 30 micron absolute filter in preventing surface damage.
Document ID
19820034901
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Loewenthal, S. H. (NASA Lewis Research Center Cleveland, OH, United States)
Moyer, D. W. (Tribon Bearing Co. Cleveland, OH, United States)
Needelman, W. M. (Pall Corp. Glen Cove, NY, United States)
Date Acquired
August 10, 2013
Publication Date
October 1, 1981
Subject Category
Mechanical Engineering
Report/Patent Number
ASME PAPER 81-LUB-35
Meeting Information
Meeting: Joint Lubrication Conference
Location: New Orleans, LA
Start Date: October 5, 1981
End Date: October 7, 1981
Sponsors: American Society of Mechanical Engineers and American Society of Lubrication Engineers
Accession Number
82A18436
Distribution Limits
Public
Copyright
Other

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