Page 21 - Rollingbearings
P. 21

Bearing basics



           A 1  Bearing basics













                                                                                                                      Bearing basics






           Why rolling bearings?  . . . . . . . . . . . . . . . . . . . . . . . . . . .  20
           Ball and roller bearings . . . . . . . . . . . . . . . . . . . . . . . . . . . .  20
           Radial and thrust bearings                                                    21                           A.1

           Terminology                                                                          22
           Shaft-bearing-housing system                                            22
           Radial bearings                                                                      23
           Thrust bearings                                                                      23

           Components and materials                                                 24
           Bearing rings                                                                         24
           Rolling elements                                                                    24
           Cages                                                                                      25
           Integral sealing                                                                      26

           Internal clearance                                                               26

           Heat and surface treatment                                               27
           Hardening                                                                              27
           Dimensional stability                                                             27
           Surface treatment and coatings                                            27

           Standardized boundary dimensions                                 28
           Bearings with inch dimensions                                              28

           Basic bearing designation system                                     29
           Basic designations                                                                31
            Bearing series                                                                   31
           Preixes and sufixes                                                              32
           Bearing designations not covered by the basic system        32
            Insert bearings                                                                  32
            Needle roller bearings                                                       32
            Tapered roller bearings                                                     32
            Customized bearings                                                         32
            Other rolling bearings                                                       32
           Designation system                                                               33













                                                                                                               19
   16   17   18   19   20   21   22   23   24   25   26