Page 780 - MiSUMi 2025
P. 780

Economy series       Product Overview                                                                Product Overview                                                       Economy series
                  Bearings                                                                                                                                                                           Bearings



                                                                                                                       QFeatures of MISUMI Economy series Bearings
                   Economy series                              New                                                     1Why are all MISUMI Economy series Bearings tested for noise and vibration? And why do we insist on achieving "Z1" level?
                                                               Specs
                   Bearings                                                                                              Through the test of Bearing noise and vibration, we can find out whether the Bearing is defective. Bearing
                                                                                                                         vibration is divided into four levels: Z0, Z1, Z2, Z3 and Z4 (Higher level, Lower noise and vibration)
                                                                                                                                                                  Noise and vibration specifications  Noise and vibration specifications
                   Applications of Economy series Bearings                                                                                   Dimension Tolerance of   of generic products on the market *  of MISUMI Economy series
                                                                                                                                             I.D. and O.D., etc.
                     Low load: Bearings for transporting light workpieces                                                                    Clearance Tolerance
                                                                                                                                                                                                        Can
           9         Medium and low speed rotation: Bearings suitable for                                                                    Roundness of Bearing Ball           Cannot                 guarantee
                     medium and low speed transferring equipment
                                                                                                                                                                                                        Z1
                                                                                                                                                                                 guarantee
            Bearings / Bearings with Housings /   Related Accessories  Medium precision rotation: Bearings that                              Ring and Outer Ring                                        higher
                                                                                                                                                                                                        level or
                                                                                                                                                                                 Z1 level
                                                                                                                                             Rail Accuracy of Bearing Inner
                     do not require precise positioning
                                                                                                                                             Scratches inside the Bearing,
                                                                                                                                             and foreign matters mixed in
                 QExample of Use
             Bearings                                                                                                  2Why do we insist on using "standard wall thickness" for MISUMI Economy series Bearings?

                   QMISUMI Economy series Bearings:                                                                       Wall thickness of generic products on the market*  Standard wall thickness for MISUMI Economy series
          P.09-007  Low Load  Medium and Low Speed Rotation  Medium Precision Rotation
            Bearings with   Housings  QThe recommended areas of use are as follows:                                     Steel Ball                 The ballistic    Steel Ball       Deep Rail  The ballistic
                                            ……It is suitable for such applications
                                                                                                                                                   contact surface is
                                                                                                                                                                                               contact area is
                                                                                                                                                                                               large, and the
                                                                                                                                                   reduced and the
          P.09-038  1Low load: Bearings for transporting light workpieces  Workpiece Transfer                                           Shallow Rail  contact stress is                        contact stress is
                                                             Application
                                                                                                                                                                                               relatively
                                                                                                                                                   relatively
                   2Medium and low speed rotation: Bearings suitable for                   Workpiece Transfer             Thinner Wall   Thickness  concentrated,    Standard Wall   Thickness  dispersed, thus
            Bearing    Lock Nuts      medium and low speed transferring equipment             Application                                   Bearing   thus affecting the                Bearing   prolonging the
                                                                                                                                                   service life.
                                                                                                                                                                                               service life.
                   3Medium precision rotation: Bearings that do not require
                                                                                                                                            Inner Ring
                                                                                                                                                                                        Inner Ring
                       precise positioning
          P.09-081
            Bearing Shaft Screws /   Bearing Spacers                                                                   3Why do we insist on using "bearing steel" and "stainless steel" materials with excellent
                                                                                                                         performance for MISUMI Economy series Bearings?
          P.09-086  QPrecautions of Selection                                                                                                Material and difference for generic   Material and difference for
            Other New Products   (Bearing Related)  · Differences in specifications between MISUMI Standard product Bearings (B6901ZZ) and MISUMI   Normal steel on the market   SUJ2 (Bearing Steel)
                                                                                                                                                 products on the market*
                                                                                                                                                                                   MISUMI Economy series
                                                                                                                                                                             Heat Treatment Hardness
                                                                                                                                          Heat Treatment Hardness
          P.09-090  Economy series Bearings (C-E6901ZZ)                                                                                   48~54HRC Not abrasion              58~63HRC More abrasion
                                                                                                                                          resistant
                                                                                                                                                                             resistant
                                      MISUMI Standard product Bearings  MISUMI Economy series Bearings                  Bearing Steel Product
                                                                                                                                          QResult After Test                 QResult After Test
                                                                                                                                          After service life test under      After the long-term service life
                                      Basic Dynamic Rated Load (Cr): 2.89kN  Basic Dynamic Rated Load (Cr): 2kN
                  Basic Load Capacity                                                                                                     the same conditions as             test, there was little wear inside
                                       Basic Static Rated Load (Cor): 1.46kN  Basic Static Rated Load (Cor): 1kN                          MISUMI Economy series, the open end cover was   the open end cover and the structure remains intact.
                                       Basic Rated Life    ▲ 1 million rotations  Basic Rated Life    ▲ 400,000 rotations                 severely worn inside and the structure was damaged.
                                           (With 2.89kN load applied)         (With 2kN load applied)
                       Lifetime                                                                                                           Normal stainless steel on the      Equivalent to SUS440 or SUS420
                                       EX: Specific example   ▲ 4000 hours   EX: Specific example   1600 hours          Stainless Steel Product  market                      After the salt spray test, the rusted
                                                                                          ▲
                                    (When rotating at speed of 750rpm and load of 0.5kN)  (When rotating at speed of 750rpm and load of 0.5kN)  After the salt spray test, the   area was about 2~3%
                                                                                                                                          rusted area was about 30%
                    Bearing Internal
                      Clearance          Minimum: 3μm  Maximum: 13μm       Minimum: 6μm  Maximum: 23μm                 * Generic products on the market are similar products randomly purchased by MISUMI from the market
                                                                                                                       * The test data are obtained through testing by MISUMI, which are for reference only
          09-007
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