Page 1049 - Rollingbearings
P. 1049

Bearing data

            Bearing data


                             Deep groove ball bearings                Cylindrical roller bearings

            Dimension        Boundary dimensions: ISO 15
            standards

            Tolerances       Normal                                   Normal
                                                                      P6 geometrical tolerance
            For additional
            information      ISO 492 (table 2, page 38, and table 3, page 39)
            † page 35

            Internal clearance  C3
                             Check availability of other clearance classes

            For additional   Values: ISO 5753-1 (table 6, page 252)   Values: ISO 5753-1 (table 3, page 506)
            information
            † page 182       Values are valid for unmounted bearings under zero measuring load.

            Permissible      Identical to standard bearings           Identical to standard bearings
            misalignment     † page 250                               † page 504

            Permissible axial   –                                     s max  → product table, page 1056
            displacement                                              NU design hybrid bearings can accommodate axial
                                                                      displacement (ig. 4). Displacement of the shaft relative
                                                                      to the housing occurs within these bearings. As a
                                                                      result, there is virtually no increase in friction.

            Electrical       • Protection against AC and DC currents
            properties       • High impedance, even for very high frequencies, providing good protection against high frequency current and
                              voltage peaks
                             • Voltage level before the irst arcing occurs through the seal–bearing contact of small hybrid deep groove ball
                              bearings (NBR contact seal): > 2,5 kV DC
                                                                                                                    21












                                      Fig. 4
            Axial displacement


                              s














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