>> P.166
MACHINED TYPE NEEDLE ROLLER BEARINGSWithout Inner RingShaft dia. 360-490mmIdentification numberShaft dia.mmRNA 49RNA 69RNA 48TAFTRGTR360RNA 4964370─380RNA 4968390─400RNA 4972415─430RNA 4976450RNA 4980470RNA 4984490RNA 4988───────────RNA 4868─RNA 4872─RNA 4876──────────────────────────────────Mass (Ref.)g35 20014 80037 00015 60038 70027 90056 40058 80061 20086 900Notes(1)Minimum allowable value of chamfer dimension r (2)Allowable rotational speed applies to oil lubrication. For grease lubrication, a maximum of 60% of this value is allowable.Remarks1. he outer ring has an oil groove and an oil hole.2.No grease is prepacked. Perform proper lubrication.D27
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