>> P.397
I84IKORollerFollowersarebearingsdesignedforouterringrotation,inwhichneedlerollersareincorporatedinathickwalledouterring.Bothcrownedandcylin-dricalouterringsareavailable.Theouterringsrundirectlyonmatingcamguidesurfaces,andthecrownedouterringiseffectiveinrelievingtheedgeloadcausedbymountingerrors.Thecylindricalouterring,ontheotherhand,hasalargecontactareawiththematingcamguidesurfaceandissuitableforappli-cationsinvolvinglargeloadsorlowcamguidesurfacehardness.InRollerFollowers,therearetwotypesofbearingsavailable,thecagedtypeandthefullcomplementtype.Thecagedtypeisusefulforapplicationsathigh-speedrotation.Thefullcomplementtype,ontheotherhand,issuitableforheavy-loadapplicationsatlow-speedrotationoroscillatingmotions.RollerFollowersincludeseparableandnon-separabletypes.Also,inadditiontotheopentype,shieldtypeandsealedtypeareavailable.Theclearancesbetweenthesideplatesandouterringoftheshieldtypearenarrow,andformlabyrinths.Inthesealedtype,specialsyntheticrubbersealsareassembledintheseclearances,andtheyareeffectiveinpreventingpenetrationofdustanddirt.Thesebearingsareavailableinavarietyoftypestosuitalmostanykindofapplication.Theyarewidelyusedforcammechanismsandforlinearmotionsofconveyingequipment.StructuresofRollerFollowersOuterringInnerringNeedlerollerCageOuterringSideplateInnerringNeedlerollerOuterringSideplateInnerringNeedlerollerSealOuterringShieldplateInnerringSideplateCylindricalrollerCageStructureofSeparableRollerFollowerStructureofSeparableRollerFollowerStructureofNon-separableRollerFollowerStructureofCylindricalRollerFollowerâ– StructureandFeaturesI
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