Page 192 - needle bearings
P. 192

Inner rings
                                                                                                            NTN


          Inch series


          Type MI


















           d 34.925ʙ98.425mm

                          Boundary dimensions                   Bearing numbers         Abutment          Mass
                                                                                       dimensions
                             mm (!/25 . 4mm)                                              mm               kg
                                                                                      da       ras
                d             F  1)        B    rs min  2)  t                        min      max       (approx.)
            34.925(1 #/8)  44.450(1 #/4)  0  32.00  1.5  2        MI-222820           41.5     1.5       0.146
                                 ʵ0.011
                        44.450(1 #/4)  0  19.30  1.5   2          MI-242812           43       1.5       0.062
            38.100(1 !/2)        ʵ0.011
                        44.450(1 #/4)    25.65   1.5   2          MI-242816           43       1.5       0.083
            39.688(1 (/16)  47.625(1 &/8)  0  32.00  1.5  2       MI-253020           46       1.5       0.136
                                 ʵ0.011
                        50.800(2)  ʴ0.008  25.65  1.5  2          MI-263216           48       1.5       0.140
            41.275(1 %/8)        ʵ0.004
                        50.800(2)        32.00   1.5   2          MI-263220           48       1.5       0.175
                        57.150(2 !/4)  ʴ0.008  38.35  1.5  2      MI-283624           51       1.5       0.310
            44.450(1 #/4)        ʵ0.004
                        57.150(2 !/4)    44.70   1.5   2          MI-283628           51       1.5       0.360
                        63.500(2 !/2)  0  38.35  2     2          MI-324024           59       2         0.340
            50.800(2)            ʵ0.013
                        63.500(2 !/2)    44.70   2     2          MI-324028           59       2         0.420
                        69.850(2 #/4)    25.65   2     2.2        MI-364416           65       2         0.257
                                   0
            57.150(2 !/4)  69.850(2 #/4)  ʵ0.013  38.35  2  2.2   MI-364424           65       2         0.384
                        69.850(2 #/4)    44.70   2     2.2        MI-364428           65       2         0.447

                        76.200(3)  0     38.35   2     2.2        MI-404824           71.5     2         0.417
            63.500(2 !/2)        ʵ0.013
                        76.200(3)        44.70   2     2.2        MI-404828           71.5     2         0.486
                        82.550(3 !/4)  0  44.70  2     2.2        MI-425228           74.5     2         0.648
            66.675(2 %/8)        ʵ0.015
                        82.550(3 !/4)    51.05   2     2.2        MI-425232           74.5     2         0.740
                                   0
            69.850(2 #/4)  82.550(3 !/4)  ʵ0.015  44.70  2  2.2   MI-445228           78       2         0.530
                        88.900(3 !/2)  0  44.70  2     2.2        MI-485628           84       2         0.574
            76.200(3)            ʵ0.015
                        88.900(3 !/2)    51.05   2     2.2        MI-485632           84       2         0.655
                                   0
            79.375(3 !/8)  95.250(3 #/4)  ʵ0.015  51.05  2.5  2.2  MI-506032          88.5     2.5       0.862
                                   0
            85.725(3 #/8) 101.600(4)  ʵ0.015  51.05  2.5  2.5     MI-546432           94.5     2.5       0.930
                                   0
            92.075(3 %/8) 107.950(4 !/4)  ʵ0.015  51.05  2.5  2.5  MI-586832         101       2.5       1.00
                                   0
            95.250(3 #/4) 114.300(4 !/2)  ʵ0.015  57.40  2.5  2.5  MI-607236         104       2.5       1.40
                       114.300(4 !/2)  0  57.40  2.5   2.5        MI-627236          107.5     2.5       1.15
            98.425(3 &/8)
                       114.300(4 !/2)  ʵ0.015  63.88  2.5  2.5    MI-627240          107.5     2.5       1.28

          Note 1) Dimensional tolerance to secure ordinary clearance when any of these inner rings is combined with needle roller bearing with no inner ring.
              2) Allowable minimum chamfer dimension r .
                                                           B-130
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