Page 506 - Rollingbearings
P. 506

Bearing data

        6  Cylindrical roller bearings

          Bearing data


                            Single row bearings                       High-capacity bearings

          Dimension         Boundary dimensions: ISO 15               Boundary dimensions: ISO 15
          standards
                            Except for:
                            • HJ angle rings: ISO 246
                            • Snap rings and grooves: ISO 464
                            • Locating slots: ISO 20515




          Tolerances        Normal dimensional tolerance              Normal dimensional tolerance
                            P6 geometrical tolerance                  P6 geometrical tolerance
                            Check availability of P5 or P6 tolerance class for bear-
                            ings in the 10 series
          For additional infor-
          mation † page 35  Values: ISO 492 (table 2, page 38, to table 4, page 40)

          Radial internal   Normal, C3
          clearance         Check availability of other clearance classes
   6                        Values: ISO 5753-1 (table 3, page 506)
          For additional infor-  Values are valid for unmounted bearings under zero measuring load
          mation † page 182

          Axial internal    Guideline values:                         –
          clearance         • NUP design (table 4, page 507)
                            • NJ design with an HJ angle ring (table 5, page 508)
                            When measuring the axial internal clearance, the roll-
                            ers may tilt, causing an enlargement of the measured
                            axial clearance:
                            • 10, 18, 19, 2, 3 and 4 series: ≈ the radial internal
                              clearance
                            • 22, 23, 29 and 39 series: ≈ 2/3 the radial internal
                              clearance

          Permissible       • 10, 12, 18, 19, 2, 3 and 4 series: ≈ 4 minutes of arc  ≈ 3 minutes of arc
          misalignment      • 20, 22, 23, 29 and 39 series: ≈ 3 minutes of arc
                            The values are not valid for bearings of the NUP design
                            or the NJ design with an HJ angle ring
                            Misalignment increases bearing noise and reduces bearing service life, and …



          Permissible axial   s max  † product tables,
          displacement (ig. 2,
          page 495)         page 516                                  page 550

                            Bearings having no lange, or only one integral lange on either the inner or
                            outer ring, can accommodate axial displacement  Displacement of the shaft …












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