Page 206 - needle bearings
P. 206

Needle roller bearings with thrust ball bearings
                                                                                                            NTN


          Without inner ring


          Type NKX
          Type NKXʝʝZ











                                                     Type NKX                         Type NKXʝZ
                                                     (Open type)                      (With cover)


           FW 10ʙ70mm

                                    Boundary dimensions                                  Basic load ratings
                                                                                 dynamic   static  dynamic  static
                                           mm                                           N               kgf
               Fw       dw     D     D1    D2     C    C1     C2     a   rs min 1)            Radial
                                                 –0   –0
                                                 –0.25  –0.20                       Cr      Cor      Cr     Cor
                         +0.040
               +0.022
             10  +0.022  10  +0.040  19  24  25  23     9     6.5   19.7  0.3      5 450   6 450     555    660
               +0.013    +0.025
                         +0.025
               +0.013
               +0.027
                         +0.050
             12  +0.027  12  +0.050  21  26  27  23     9     6.5   21.7  0.3      6 000   7 700     615    785
               +0.016
               +0.016    +0.032
                         +0.032
                         +0.050
               +0.027
               +0.027    +0.050
             15  +0.016  15  +0.032  24  28  29  23     9     6.5   23.7  0.3      8 250  10 200     840  1 040
                         +0.032
               +0.016
                         +0.050
               +0.027    +0.050
               +0.027
             17  +0.016  17  +0.032  26  30  31  25     9     8     25.7  0.3     10 400  14 400   1 060  1 460
               +0.016
                         +0.032
                         +0.061
               +0.033    +0.061
               +0.033
             20  +0.020  20  +0.040  30  35  36  30    10    10.5   30.7  0.3     16 400  27 100   1 670  2 760
               +0.020
                         +0.040
               +0.033    +0.061
               +0.033
                         +0.061
             25  +0.020  25  +0.040  37  42  43  30    11     9.5   37.7  0.6     14 200  24 000   1 450  2 450
                         +0.040
               +0.020
               +0.033
                         +0.061
               +0.033    +0.061
             30  +0.020  30  +0.040  42  47  48  30    11     9.5   42.7  0.6     22 300  39 500   2 280  4 000
               +0.020
                         +0.040
               +0.041    +0.075
               +0.041
                         +0.075
             35  +0.025  35  +0.050  47  52  53  30    12     9     47.7  0.6     20 000  36 000   2 040  3 650
               +0.025
                         +0.050
               +0.041
                         +0.075
               +0.041    +0.075
             40  +0.025  40  +0.050  52  60  61  32    13    10     55.7  0.6     25 900  52 500   2 650  5 350
                         +0.050
               +0.025
               +0.041
                         +0.075
               +0.041    +0.075
             45  +0.025  45  +0.050  58  65  66.5  32  14     9     60.5  0.6     27 600  59 000   2 810  6 000
                         +0.050
               +0.025
               +0.041
                         +0.075
             50  +0.041  50  +0.075  62  70  71.5  35  14    10     65.5  0.6     27 900  62 000   2 850  6 300
                         +0.050
               +0.025
               +0.025    +0.050
               +0.049
                         +0.090
               +0.049    +0.090
             60  +0.030  60  +0.060  72  85  86.5  40  17    12     80.5  1       29 800  71 500   3 050  7 300
               +0.030
                         +0.060
               +0.049
               +0.049    +0.090
                         +0.090
             70  +0.030  70  +0.060  85  95  96.5  40  18    11     90.5  1       36 500  86 000   3 700  8 750
               +0.030
                         +0.060
          Note 1) Allowable minimum chamfer dimension r.
                                                           B-144
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