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TableofContentsIntroduction……………………………………………………………………………………1NotesuponPublication……………………………………………………………………3TableofContents……………………………………………………………………………8WarningsandPrecautions………………………………………………………………12Warnings…………………………………………………………………………………12Precautions………………………………………………………………………………121TechnicalNotes……………………………………………………………………151-1BearingModels…………………………………………………………………………16BearingModels…………………………………………………………………………161-2NamesandSymbols……………………………………………………………………19BearingComponentsandNames……………………………………………………191-3PartNumbers……………………………………………………………………………20NMBPartNumbers……………………………………………………………………20JISPartNumbers………………………………………………………………………22Arrays……………………………………………………………………………………241-4BearingSelection………………………………………………………………………26(1)Selectionprocess……………………………………………………………………26(2)Structureofproductsinuse/Functionsrequiredofbearingsandusageenvironments………………………28(3)Materials………………………………………………………………………………30(4)Shields/seals…………………………………………………………………………32(5)Retainer………………………………………………………………………………33(6)Ratingloadandlife…………………………………………………………………34(7)Toleranceandclass…………………………………………………………………40(8)Measurementmethods……………………………………………………………50(9)Internalclearance……………………………………………………………………52(10)Fits……………………………………………………………………………………53(11)Shaftandhousingdesign…………………………………………………………58(12)Preloadandload……………………………………………………………………60(13)Displacement………………………………………………………………………64(14)Torque………………………………………………………………………………66(15)Vibrationduetoforcedrotation…………………………………………………68(16)Noise…………………………………………………………………………………728