Applied Tribology: Bearing Design and Lubrication

658 Pages·2017·17.29 MB·English

by  Michael M. Khonsari

APPLIED TRIBOLOGY
Tribology Series
Editor:GStachowiak
Khonsariand AppliedTribology:BearingDesignandLubrication, June2017
Booser 3rdEdition
Bhushan IntroductiontoTribology,2ndEdition March2013
Bhushan PrinciplesandApplicationstoTribology,2nd March2013
Edition
Lugt GreaseLubricationinRollingBearings January2013
HonaryandRichter BiobasedLubricantsandGreases:Technologyand April2011
Products
MartinandOhmae Nanolubricants April2008
Khonsariand AppliedTribology:BearingDesignandLubrication, April2008
Booser 2ndEdition
Stachowiak(ed) Wear:Materials,MechanismsandPractice November2005
Lansdown LubricationandLubricantSelection:APractical November2003
Guide,3rdEdition
Cartier HandbookofSurfaceTreatmentandCoatings May2003
Sherrington,Rowe TotalTribology:TowardsanIntegratedApproach December2002
andWood(eds)
Kragelskyand Tribology:Lubrication,FrictionandWear April2001
StolarskiandTobe RollingContacts December2000
NealeandGee GuidetoWearProblemsandTestingforIndustry October2000
APPLIED TRIBOLOGY
BEARING DESIGN AND
LUBRICATION
ThirdEdition
MichaelM.Khonsari
DowChemicalEndowedChairinRotatingMachinery
DepartmentofMechanicalandIndustrialEngineering
LouisianaStateUniversity,USA
E.RichardBooser
EngineeringConsultant(Retired),USA
Thiseditionfirstpublished2017
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LibraryofCongressCataloging-in-PublicationData
Names:Khonsari,MichaelM.,author.|Booser,E.Richard,author.
Title:Appliedtribology:bearingdesignandlubrication/MichaelM.Khonsari,E.RichardBooser.
Description:Thirdedition.|Hoboken,NJ:JohnWiley&SonsInc.,2017.|
Includesbibliographicalreferencesandindex.
Identifiers:LCCN2016059982(print)|LCCN2017000217(ebook)|ISBN9781118637241(cloth)|
ISBN9781118700259(AdobePDF)|ISBN9781118700266(ePub)
Subjects:LCSH:Tribology.|Bearings(Machinery)–Designandconstruction.
Classification:LCCTJ1075.K462017(print)|LCCTJ1075(ebook)|DDC621.8/22–dc23
LCrecordavailableathttps://lccn.loc.gov/2016059982
CoverDesign:Wiley
CoverImage:©prescott09/Gettyimages
Setin10/12ptTimesbyAptaraInc.,NewDelhi,India
10 9 8 7 6 5 4 3 2 1
Dedicatedto:
Karen,Maxwell,MiltonandMasonKhonsariandinmemory
ofKatherineBooser
Contents
SeriesPreface ix
Preface(ThirdEdition) xi
Preface(SecondEdition) xiii
AbouttheCompanionWebsite xv
PartI GENERALCONSIDERATIONS
1 Tribology–Friction,Wear,andLubrication 3
2 LubricantsandLubrication 23
3 SurfaceTexture,InteractionofSurfacesandWear 65
4 BearingMaterials 135
PartII FLUID-FILMBEARINGS
5 FundamentalsofViscousFlow 161
6 ReynoldsEquationandApplications 189
7 ThrustBearings 221
8 JournalBearings 255
9 Squeeze-FilmBearings 329
10 HydrostaticBearings 373
11 GasBearings 395
12 DryandStarvedBearings 433
PartIII ROLLINGELEMENTBEARINGS
13 SelectingBearingTypeandSize 463
14 PrinciplesandOperatingLimits 495
15 FrictionandElastohydrodynamicLubrication 529
viii Contents
PartIV SEALSANDMONITORING
16 SealsFundamentals 573
17 ConditionMonitoringandFailureAnalysis 619
AppendixAUnitConversionFactors 639
AppendixBViscosityConversions 641
Index 643
Series Preface
ThefirstandthesecondeditionofAppliedTribologyBearingDesignandLubricationwere
published in 2001 and 2008, respectively. Both books enjoy a five star ranking on the
Amazonbooklist.Theneweditionfollowsthesamestyleandstructureasthetwoprevious
ones. The book starts with general description of the tribological concepts such as friction,
wear,lubricantsandlubrication,surfacetextureandbearingmaterials.Thetextthenfollows
with detailed explanation of the lubrication regimes and the corresponding bearing designs.
Twochaptersthatfollowcontaininformationonbearingselectionandoperatinglimits,very
usefulforpracticingengineers.Thebookfinisheswithachapteronsealfundamentals.Incom-
parisontothesecondedition,thisnewversionismuchimproved.Thetexthasbeenupdated,
some of the chapters significantly extended, additional references included, and occasional
errors removed. Throughout the text several new numerical examples, supporting the prob-
lemsdiscussed,havealsobeenadded.
Substantial new sections have been included in several chapters. In particular, Chapter 3
has been thoroughly revised and enhanced by new segments on contact between surfaces,
friction and wear phenomena, classification of wear, failure modes and wear maps. Chap-
ter6hasbeensupplementedbyadiscussiononoptimizingafiniteRayleighstepbearing.In
Chapter 7 a useful section on the maximum bearing temperature calculations, based on the
thermohydrodynamic analysis, has been included. In Chapter 8 sections on tilted pad jour-
nalbearings,maximumbearingtemperatureandwhirlinstabilityhavebeenadded.Updated
Chapter9nowcontainsadiscussiononthecombinedsqueezeandrotationalmotionandver-
ticalbearingconfiguration,commonlyfoundinindustrialapplications.Chapter15hasbeen
updated by including discussions on mixed film lubrication, lubricant starvation, models of
non-Newtonianbehavioroflubricants,greasesandsolidlubricants.Chapter16,dedicatedto
seal foundations, contains now a discussion on thermal effects in mechanical face seals and
waysofreducingthesurfacetemperature.
Fromtheviewpointofthereader,agreatadvantageofthisbookisthatcomplexlubrication
mechanismsandtheirpracticalapplicationsinbearingsarepresentedinaneasilyaccessible
form.Clearandstraightforwardstylemakesthisbookahighlyattractivetextforbothunder-
graduateandpostgraduateengineeringstudents.Thebookisnotonlyagoodtextbookbutalso
a very useful reference. Thus it is highly recommended for undergraduate and postgraduate
studentsstudyingtribologyandmachinedesignandaswellasasolidreferenceformechanical
x SeriesPreface
engineers.Itisexpectedthatthisnewedition,asitstwopredecessors,wouldbeequallypopular
andcontinuetomaintainitsfivestarrankingontheengineeringbooklist.
GwidonStachowiak
TribologyLaboratory
DepartmentofMechanicalEngineering
CurtinUniversity
Perth,Australia