>> P.230
Boundary dimensionsmmStandard mounting dimensionsmm(1)rs minFwdbDadaDbMax. Min.Max.3232323237373737424242424747505052525555636368687373343434343939393944444444494954545454595963.563.568.568.573.573.535.635.635.635.640.840.840.840.845.845.845.845.850.850.855.855.855.855.860.860.8666671717676353535354040404045454545505055555555606065657070757539.539.540.440.443.543.545.245.248.548.550.950.954.254.260.960.959.559.566.366.372727777828243434545484853535353606060606767666673737777828287870.30.30.30.30.30.30.30.30.30.30.30.30.30.3110.30.3111.51.51.51.51.51.5C1726163217342040173420402040204020402040306030603060d3030303035353535404040404545454550505050555560606565D4545474750505555555562626262727268687878858590909595Shaft dia. 30-65mmShaftdia.mm3035404550556065Identification numberNAF 304517NAFW 304526304716NAF NAFW 304732NAF 355017NAFW 355034355520NAF NAFW 355540NAF 405517NAFW 405534406220NAF NAFW 406240NAF 456220NAFW 456240457220NAF NAFW 457240NAF 506820NAFW 506840507820NAF NAFW 507840NAF 558530NAFW 558560NAF 609030NAFW 609060NAF 659530NAFW 659560Mass (Ref.)g1011551072151152301863751282552354751963903406852304653907756901 3807401 4807901 580Notes(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.D91NEEDLE ROLLER BEARINGS WITH SEPARABLE CAGEWith Inner Ring
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