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SNLplummerblockhousingssolvethehousingproblemsContents2MadebySKF®standsforexcellence.Itsymbolisesourconsistentendeavourtoachievetotalqualityineverythingwedo.Forthosewhouseourproducts,“MadebySKF”impliesthreemainbenefits.Reliability–thankstomodern,efficientproducts,basedonourworldwideapplicationknow-how,optim-isedmaterials,forward-lookingdesignsandthemostadvancedproductiontechniques.Costeffectiveness–resultingfromthefavourableratiobetweenourproductqualityplusservicefacilities,andthepurchasepriceoftheproduct.Marketlead–whichyoucanachievebytakingadvantageofourproductsandservices.Increasedoperatingtimeandreduceddown-time,aswellasimprovedoutputandproductqualityarethekeytoasuccessfulpartnership.1Productinformation..................................................3Fewerbearingreplacementsandlessmaintenance...3Plummerblockhousingshavemuchtooffer................3SNLplummerblockhousingshavemoretooffer.........3Onebasicdesign–manyvariants................................4Costsandrisks–atalowlevel....................................6Highperformanceforallsectors...................................82Recommendations....................................................10Bearingarrangementdesign.......................................10Bearingsonadaptersleevesonsmoothshafts............10Bearingsonadaptersleevesonsteppedshafts...........11Bearingsonwithdrawalsleevesonsteppedshafts......12Bearingsoncylindricalseatingsonsteppedshafts......13Standardseals..............................................................14Specialseals.................................................................21Endcovers....................................................................23Locatingrings...............................................................23AxialdisplacementusingCARBbearingsinSNLhousings................................................................24Applicationadvicefortrouble-freeoperation............26Lubrication....................................................................28Mounting.......................................................................30MountingSNLhousingswithdouble-lipseals..............34MountingSNLhousingswithV-ringseals....................36MountingSNLhousingswithfeltseals.........................38MountingSNLhousingswithlabyrinthseals................40MountingSNLhousingswithtaconiteseals.................423Productdata..............................................................44Designationsandhousingdata..................................44Designations.................................................................44Loadcarryingability......................................................45Producttables...............................................................48SNLplummerblockhousingsforbearingsonadaptersleeve.........................................................48SNLplummerblockhousingsforbearingswithcylindricalbore.......................................................58SealingarrangementsforSNLplummerblockhousings..66Otherproductsfortrouble-freeoperation..................70TheSKFGroup–aworldwidecorporation................74Fewerbearingreplacementsandlessmaintenance31Productinformation2Recommendations3ProductdataCustomerbenefitsPage.............10Page.............44PlummerblockhousingshavemuchtoofferThemainbenefitofsplitplummerblockhousingsistheireasyinstallation;pre-assembledshaftscanbemountedinthem.Whenthehousingbasesareattachedtothebaseplateitisthenonlynecessarytoplacethehousingcapsinpositionandtotightentheattachmentboltstocompletetheinstallation.Splitplummerblockhousingsavail-ableonthemarketaremainlyintendedforself-aligningballbearings,sphericalrollerbearingsandCARB®bearingsofISODimensionSeries02,03,22,23and32.Theycanoftenbefittedwithvariousdifferentseals.Manydesignsandvariantsofsplitplummerblockhousingsareavailablemakingtheuseoftailoredhousingsunnecessaryandthusenablingcosteffectivebearingarrangementstobemade.FormanyyearsSKFhasbeenoneoftheleadingproducersofsplitplum-merblockhousings,includingtheSNHplummerblockhousings–synonimouswithoperationalreliability,qualityandversatility.SNLplummerblockhousingshavemoretoofferThecurrentSKFstandardplummerblockhousingsoftheSNHdesignareconsideredasthefirstchoiceforde-sign,qualityandeconomy.However,tomeetthestillhighermarketdemandsofthefuture,SKFhasdevelopedtheSNLplummerblockhousings.Theseenablecustomerstokeepastepahead.1ThenewSNLplummerblockhous-ingsenablethefullservicelifepoten-tialoftheincorporatedbearingstobeexploitedwithlessneedofmainte-nance.Thissupportsusereffortstofurtherreducemaintenancecosts.Amongotherenhancementsthehous-ingshaveincreasedstiffness,makingthemevenmoreinsensitivetouncon-trolledandexcessivetighteningoftheattachmentbolts.AnotherbenefitisthechoiceofoilorgreaselubricationforthebearingshousedinSNLplummerblocks.Arangeofnewlydevelopedsealsforoillubricationandroughenvironmentsmakefortrouble-freeoperation.SeveralsealingoptionsAnimportantadvantageoftheSNLplummerblockhousingsisthattheycanbefittedwithavarietyofseals.Thestandardsea