>> P.202
4545505055556060656570707575808085859090959568687272808085859090100100105105110110120120125125130130224022402545254525453054305430543563356335634040234123412646264626463155315531553664366436644141Identification numberMass (Ref.)Boundary dimensionsmmWith two sealsWith one sealWith two sealsWith one sealdDCBrrCBFwDdrrNA49 … UUWith Seal, With Inner RingShaft dia. 45-110mmMACHINED TYPE NEEDLE ROLLER BEARINGSShaft dia.mm4550556065707580859095NA 4909UU─NA 4910UU─NA 4911UU─NA 4912UU─NA 4913UU─NA 4914UU─NA 4915UU─NA 4916UU─NA 4917UU─NA 4918UU─NA 4919UU─NA 4909U─NA 4910U─NA 4911U─NA 4912U─NA 4913U─NA 4914U─NA 4915U─NA 4916U─NA 4917U─NA 4918U─NA 4919U──NA 6909UU─NA 6910UU─NA 6911UU─NA 6912UU─NA 6913UU─NA 6914UU─NA 6915UU─NA 6916UU─NA 6917UU─NA 6918UU─NA 6919UU─NA 6909U─NA 6910U─NA 6911U─NA 6912U─NA 6913U─NA 6914U─NA 6915U─NA 6916U─NA 6917U─NA 6918U─NA 6919Ug2905202955304157304457854758457701 4008151 4808601 5701 3002 3601 3602 4801 4202 600100110NA 4920UUNA 4920UNA 4922UUNA 4922U────1 9801001402 150110150Notes(1)Minimum allowable value of chamfer dimension r (2)Allowable rotational speed applies to grease lubrication.Remarks1.The outer ring has an oil groove and an oil hole.2. earings are provided with prepacked grease. Bearings with a seal on one side are not provided with prepacked grease. Perform proper lubrication for use.D63
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