Page 584 - Rollingbearings
P. 584

7  Needle roller bearings





















          Mor                              SKF needle roller bearings are bearings with   • Separable design
          More informatione information
                                           cylindrical rollers that are small in diameter   The possibility of assembling inner and
                                           relative to their length  The modiied roller/  outer rings separately permits interfer-
                                     17
          Bearing life and load ratings      al bearing knowledge
          Gener                      63    raceway proile prevents stress peaks to   ence its for shaft and housing and also
                                           extend bearing service life          enables easy maintenance inspections
                                     59
          Design considerations                earing selection process            59  SKF supplies needle roller bearings in   (ig. 2)
          B
                                    160
          Bearing systems                            ubrication
          L                         109    many different designs, series and in a wide
                                    13
          Recommended its                        earing interfaces                            1699  range of sizes, which make them appropriate   • Accommodate axial displacement
          B
          Selec                     208    for a wide variety of operating conditions and   Except for bearings with langes on both
          Abutment and illet dimensions    ting internal clearance
                                    182
          Sealing, mounting and            applications                         the inner and outer rings, needle roller
          dismounting
                                    193
          Lubrication                                      239                  bearings with machined rings can accom-
                                           Bearing features                     modate axial displacement (ig. 3)
          Mounting, dismounting and
   7      bearing care                                   271                  • Accommodate static misalignment
          Mounting instructions for        • Low cross section                  Alignment needle roller bearings are
          individual bearings   † skf com/mount  In applications where less space is availa-  self-aligning up to 3° of static
          SKF bearing maintenance            ble, needle roller bearings offer a very   misalignment
          handbook  (ISBN 978-91-978966-4-1)  compact solution (ig. 1), and drawn cup
                                             needle roller bearings enable downsizing   • Locating bearing arrangement
                                                                                Combined needle roller bearings accom-
                                           • High load carrying capacity        modate combined radial and axial loads in
                                             Owing to their large number of rollers,   one or both directions
                                             needle roller bearings have a high load
                                             carrying capacity
                                           • High stiffness
                                             Because of their large number of
                                             small-diameter rollers, needle roller bear-
                                             ings have high stiffness

                                                                      Fig. 1                             Fig. 2
                                             Low cross section                  Separable design


















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