>> P.232
NEEDLE ROLLER BEARINGS WITH SEPARABLE CAGEWith Inner RingShaft dia. 70-90mmIdentification numberMass (Ref.)gNAF 7010030NAFW 70100608351 680NAF 7510530NAF 8011030NAF 8511530885935985NAF 90120301 040Shaftdia.mm7075808590Boundary dimensionsmmStandard mounting dimensionsmmd707075808590D100100105110115120C306030303030(1)rs minFwdbDaMax.92929710287879297daDbMin.Max.78788388939878.578.583.588.593.5818186919698.510110210710010711280808590951.51.51.51.51.51.5Notes(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.D93
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