Page 228 - needle bearings
P. 228

Roller followers : Yoke type truck rollers (sealed type)
                                                                                                            NTN


          Metric series


          Type NA22ʝʝLL
          Type RNA22ʝʝLL











                                                        Type NA22ʝLL                  Type RNA22ʝLL
                                                       (With inner ring)             (Without inner ring)


           D 19ʙ90mm

                        Boundary dimentions                   Basic load ratings           Load ratings of truck
                                                       dynamic  static  dynamic  static
                               mm                             N              kgf            N            kgf
            D    B    C    d     Fw      e   F   rs min 1)
             0
           ʵ0.05                                         Cr      Cor      Cr     Cor
            19                    ʴ0.022
                                  ʴ0.013
                                  ʴ0.027
            24                    ʴ0.016
                                  ʴ0.027
            30                    ʴ0.016
                                  ʴ0.027
            32                    ʴ0.016
                                  ʴ0.033
            35                    ʴ0.020
                                  ʴ0.033
            40                    ʴ0.020
                                  ʴ0.033
            47                    ʴ0.020
                                  ʴ0.033
            52                    ʴ0.020
                                  ʴ0.041
            62                    ʴ0.025
                                  ʴ0.041
            72                    ʴ0.025
                                  ʴ0.041
            80                    ʴ0.025
                                  ʴ0.049
            85                    ʴ0.030
                                  ʴ0.049
            90                    ʴ0.030

























          Note 1) Allowable minimum chamfer dimension r.
              2) For bearing with cylindrical outer surface, the nominal bearing is followed by "X". In this case, the bearing is manufactured with outer ring diameter tolerance
               conforming to JIS Class-0.   Ex. NA2203XLL
                                                           B-166
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