>> P.59
•ShaftandhousingcornerroundnessradiusTheshaftandhousingends(thesurfacesincontactwiththebearingends)areorthogonaltotheshaftcenterandfitsurface.Aswell,themaximumallowableradius(rasmax)forcornerroundnessissmallerthanthebearingminimumallowablechamferdimension.•ShoulderheightTheshaftandhousingshoulderheight(h)shouldbelargerthanthebearingminimumallowablechamferdimension,enablingfirmcontactwiththeendsoftheouterandinnerrings.Theminimumshoulderheight(h)shouldberoughly4xthebearingminimumallowablechamferdimension,andthemaximumshouldbesmallerthantheouterringshoulderdiameter(Lo)forthebearingouterdiameterlimitdimensionsandlargerthantheinnerringshoulderdiameter(Li)forthehousinginnerdiameterlimitdimensions.Forthedimensionalrelationships,seethetablebelowandthedimensiontables.ExcerptedfromJISB1566(Unit:mm)ShaftorhousingHousingInnerringorouterringchamferdimensionrsmin0.05*30.08*30.10.150.20.30.6CornerroundnessradiusrsmaxIngeneralcases*1Inspecialcases*2h(minimum)0.050.080.10.150.20.30.60.20.30.40.60.81.252.250.20.30.40.60.812*1:Underlargeaxialload,shoulderheightlargerthanthesevalueswillberequired.*2:Usedwhentheaxialloadissmall.*3:NotregulatedinJISB1566.OuterringshoulderheightrsminrsminrsmaxhhInnerringshoulderheightrsmaxShaftFig.11-159
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