Page 328 - needle bearings
P. 328

Tensioner pulleys
                                                                                                            NTN

















                                                                                                Section x-x

                        Example 1             Example 2

                                                                                   Example 3

           D 60ʙ100mm

                                   Boundary dimensions                                Bearing      Sample   Mass
                                                                                      numbers      number
                                          mm                                                                kg
             D     B     B1     H     d1     a     b      S      L        B2
                                       0
                                      ʵ0.3                                                                (approx.)
             60   25     ʵ     3.5    ʵ     ʵ     ʵ      ʵ       ʵ        ʵ       JPU60S             1     0.140

                  25     ʵ     3.5    ʵ     ʵ     ʵ      ʵ       ʵ        ʵ       JPU70S             1     0.160
                  25     ʵ     3.5    ʵ     48    39    10.2     ʵ        ʵ       JPU70SʴʴJF1S       2     0.235
             70   30     2      ʵ     21    ʵ     ʵ      ʵ    67   ʙ71   5ʙ9      JPU70-2S           3     0.245
                  32     ʵ      ʵ     ʵ     ʵ     ʵ      ʵ       ʵ        ʵ       JPU70-1S           1     0.175
                  32     ʵ      ʵ     ʵ     48    46    10.2     ʵ        ʵ       JPU70-1SʴʴJF2S     2     0.250
                  25     ʵ     3.5    ʵ     ʵ     ʵ      ʵ       ʵ        ʵ       JPU90S             1     0.215
                  25     ʵ     3.5    ʵ     58    39    10.2     ʵ        ʵ       JPU90SʴʴJF3S       2     0.300
                  32     ʵ      ʵ     ʵ     ʵ     ʵ      ʵ       ʵ        ʵ       JPU90-1S           1     0.230
             90
                  32     ʵ      ʵ     ʵ     58    46    10.2     ʵ        ʵ       JPU90-1SʴʴJF4S     2     0.320
                  32     3.5    ʵ     21    ʵ     ʵ      ʵ    70.5ʙ74.5  5ʙ9      JPU90-9S           3     0.325
                  45     3.5    ʵ     21    ʵ     ʵ      ʵ    83.5ʙ87.5  5ʙ9      JPU90-10S          3     0.380
                  32     3.5    ʵ     21    ʵ     ʵ      ʵ    70.5ʙ74.5  5ʙ9      JPU100-14S         3     0.290
            100
                  40     3.5    ʵ     21    ʵ     ʵ      ʵ    78.5ʙ82.5  5ʙ9      JPU100-12S         3     0.390
































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