Page 421 - MiSUMi FA Mechanical Components Economy Series
P. 421

Economy Series
          Quality Assurance                                               Flat Belt Pulleys/ Idlers




          2Economy series flat belt pulleys have knurled surfaces, increasing anti-slip
             capacity by 4.7 times

                                                     MISUMI standard product MISUMI Economy series    8
            Flat Belt Pulley Static Friction Force (N)
                                                         Non Knurled Surface     Knurled Surface
            MISUMI
            Economy series                21                                                         Cam Followers
            Knurled Type                                                                              Flat Belts / Rollers /
            MISUMI
            Standard product  4.5 Anti-slip capacity increased by4.7 times
            Non Knurled
            Type
                   0    5     10   15   20    25                                                     Rollers  Flat Belts /
            Test: static friction force test for belts and pulleys
            Method: fix the flat belt pulley and use the electronic force                           P.417
                  gauge to measure the static friction force of the  *Under normal use, there is no obvious difference in belt wear
                  belt under the same load            compared with non-knurled pulleys
            Equipment: electronic force gauge                                                         Flat Belts


          2Guaranteed coaxiality of no more than 0.05, effectively reducing the belt                P.423
             vibration when running.

           2Flat Belt Pulley                            2Flat Belt Idler                             Molded Rollers  Urethane
                 1П0.05                                   1П0.05                                    P.429




                                                                                                     Bearings
                                                                                                      Urethane Molded
                                                                                                    P.433



                                                                                                      Ball Rollers
                                                                                                    P.435

          2Tightening torque is increased by 11.8%, with locking threaded hole changed to 120°.      Followers  Cam
                                                    MISUMI standard product MISUMI Economy series
                                                                                                    P.443
                   Tightening Torque (N·m)            Locking Threaded Hole (90°)  Locking Threaded Hole (120°)
                                                       Shaft Hole Specifications  Shaft Hole Specifications
            Locking                                       Round Hole + Tapped   Round Hole + Tapped  Followers  Roller
            Threaded                                           P                     P
              Hole                            6.6                  90°
             (120°)                                                                       120°      P.453
            Locking
            Threaded            11.8% increase in tightening torque
              Hole            5.9
             (90°)                                       New JIS Keyway + Tapped  New JIS Keyway + Tapped
                                                              N·NK                   N
                   5.4     5.8     6.2      6.6
                                                                   90°
                                                                                          120°
            Test: sliding torque test
            Method: fix the pulley, rotate the central shaft, and test the
                  rotational torque at the moment of sliding
            Equipment: torque tester

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