Page 648 - MiSUMi 2025
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7           Timing Pulleys S2M                                                                                                                                                                         7

            Timing Pulleys & Idlers & Belts /   Round Belt Pulleys & Idlers & Belts  S2M  Pulley M Material Flange  S Surface Treatment                                                                           Round Belt Pulleys & Idlers & Belts  Timing Pulleys & Idlers & Belts /



                                                     2mm



            Timing   Pulleys                                      Aluminum Alloy       Clear Anodized                                                                                                             Pulleys  Timing


          P.07-007                                                                                                                                                                                               P.07-007

             Idlers                                                                                                                                                                                                Idlers


          P.07-033  QPulley Shape  4  B Shape  4  K Shape       Standard Tooth Profile  Type & Nominal Width (* dimension)                                                                                       P.07-033
                                                                                  Belt Type Pulley Shape
                                                                                                     L
                                                                                                  W
                                                                                               A
                    A Shape
             Timing Belts  2.0  W/2  2-M  2.0  *W *L  2.0 4.5  2-M       1.30  0.254  S2M040  B K A  5 7  11 9  17 -                                                                                               Timing Belts
                 4
                                                                                          A
                                                                                                     -
                        *W
                           2.0
                        *A
                                     *A
                                                                        0.172
                                                                                  S2M060
                                                                                          B
                                                                        R1.325
                                                                   R0.19
                                                                              0.76
                                                                         R0.1
          P.07-055                                    2.0  *A *L  5  2-M  Tooth groove dimensions   S2M100  K A  11  15  19 -                                                                                    P.07-055
            Round Belt Pulleys &   Idlers & Belts  P.D.  O.D.  dH7  E  F  P.D.  O.D.  dH7  D  E  F  F  P.D.  O.D.  E  dH7  E  D  slightly vary according to   Tapped Hole Dimensions                              Idlers & Belts  Round Belt Pulleys &
                                                                                          B
                                                                                                     23
                                                                                          K
                                                                   the number of teeth.
                                                                    (Pitch: 2.0mm)
                                                                                 (Shaft Bore Specs.:  P  ·  N )
                                                                                     3~5
                                                                                                M3
          P.07-088  (t1.0)       (t1.0)               (t1.0)                     dH7 Shaft Bore ID  M (Coarse Thread)                                                                                            P.07-088
                                                                                                M4
                                                                                     6~24
                 QShaft Bore Specs.                                              E For more tap dimensions, refer to the
                 5  H  Round Hole  5  P  Round Hole + Tap  5  N  New JIS Keyway + Tap  MISUMI website.
                                                                                 N/NK: New JIS (B1301) keyway size table
                                                                     QKeyway Size  Shaft Bore  Keyway
                                                                        bjs9  t  Spec. Shaft Bore Tolerance b  js9  t  Tolerance
                                                                                  N  8  + 0.015  3 ±0.0125 1.4
                                                                            2-R0.2   N  10  0
                                                                            or Less  NK  10  + 0.015  4 ±0.0150 1.8
                                         (120°)
                                                                                        0
                                                                                  N 11~12   4     1.8  + 0.1
                                                                                                     0
                                                                        dH7       N 13~17  + 0.018  5  ±0.0150 2.3
                                                                                        0
                   HH7           PH7                 N H7                         N  18     6     2.8
                 E  No tapped holes   E  For Shape A pulley, the set              N 19~22  + 0.021  6 ±0.0150 2.8
                                                                                        0
                  or set screws.  screw hole is set around 120°
                                 to avoid interference with the                  E  For more keyway dimensions, refer to the
                                                                                  MISUMI website.
                                 tooth top.
                         Part Number          5Shaft Bore Specs. H   5Shaft Bore Specs. P   5Shaft Bore Specs. N/NK
                                         4Pulley   Hole Dia. d    Hole Dia. d    Hole Dia. d    P.D.  O.D.  F  E
                         2Number of      Shape
                   1Type  Teeth  3Belt Type    (1mm increments)  (1mm increments)  (1mm increments)
                           14                      3·4                                8.91  8.4  12  6
                           15                                                         9.55  9.04
                           16                      3·4·5                              10.19  9.68  14  8
                           18                                                         11.46  10.95
                           20                      3~6                                12.73  12.22  16  10
                           22                      3~7           -            -       14.01  13.5  18  11
                           23                                                         14.64  14.13
                           24                      3~9                                15.28  14.77  20  13
                           25                                                         15.92  15.41
                           26     S2M040                                              16.55  16.04
                  E-HTPA   28     S2M060   A       3~10                               17.83  17.32  22  14
                           30     S2M100                                              19.1  18.59
                           32                      4~12                       8       20.37  19.86  25  16
                           34                                   4~10        8·10·NK10  21.65  21.14
                           36                      4~14                               22.92  22.41  28  18
                           40                      4~16         4~12       8~12·NK10  25.46  24.96  30  20
                           44                      5~19         5~15       8~13·NK10  28.01  27.5  32  23
                           48                      5~21         5~17       8~16·NK10  30.56  30.05  35  25
                           50                                                         31.83  31.32
                           60                      5~28         5~24       8~22·NK10  38.2  37.69  44  32
                           72                      5~34         5~30       8~26·NK10  45.84  45.33  50  38
          07-009                 Timing Pulleys
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