>> P.228
NEEDLE ROLLER BEARINGS WITH SEPARABLE CAGEWith Inner RingShaft dia. 6-25mmShaftdia.mm679101215172025Identification numberNAF 61710NAF 72012NAF 92212NAF 102213NAFW 102220102612NAF NAF 122413NAFW 122420122812NAF NAF 152813NAFW 152826153212NAF 173013NAF NAFW 173026NAF 173516NAFW 173532203517NAF NAFW 203526NAF 203716NAFW 203732254017NAF NAFW 254026NAF 254216NAFW 254232Mass (Ref.)g 13.5 22.5 24 26 40 36 29.5 45.5 40 38.5 77.5 50.5 42.5 84.5 77.5155 74114 79158 87.5135 94186Boundary dimensionsmmStandard mounting dimensionsmmd679101010121212151515171717172020202025252525D172022222226242428282832303035353535373740404242(1)rs minFwdbDadaDbMax. Min.Max.0.30.30.30.30.30.30.30.30.30.30.30.30.30.30.30.30.30.30.30.30.30.30.30.310101214141416161620202022222222252525253030303012.413.515.517.617.619.419.619.621.423.623.625.425.625.627.827.829.529.530.430.434.534.535.435.41518202020242222262626302828333333333535383840408911121212141414171717191919192222222227272727 9.710.4 9.710.411.512.413131315151519191921212121242424242929292914.614.614.616.616.616.620.620.620.622.622.622.622.625.625.625.625.630.630.630.630.6C101212132012132012132612132616321726163217261632Notes(1)Minimum allowable value of chamfer dimension r (2) Allowable rotational speed applies to oil lubrication. For grease lubrication, a maximum of 50% of this value is allowable.Remarks1. NAF has no oil hole. NAFW is provided with an oil groove and an oil hole on the outer ring.2. No grease is prepacked. Perform proper lubrication.D89
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