Page 415 - SKF-bearing-housings
P. 415

Lubrication


                                       Fig. 11  Oil lubrication
                                               Oil bath lubrication
                                               The level of oil should be at about the centre
                                               of the lowermost rolling element when the
                                               bearing is stationary. Values for the oil level
                                               are listed in tables 9 and table 10
                                               († page 412). For higher speeds, the level
                                               should be slightly lower to reduce the effects
                                               of lubricant churning – about  1 /8 in. above the
                                               corner of the outer ring raceway of the bear-
                                               ing. For additional information contact the SKF
                                               application engineering service.
                                                An oil sight glass should be used to monitor
                                               the oil level during operation. It can be mounted
                                               to one of the drain holes in the housing base.
                                               The static oil level should be marked on the
                                               sight glass during installation and a running
                                       Table 9  level should be marked immediately after
            Oil level for SAW housings         start-up. Depending on the type of bearing
                                               and the speed and direction of rotation, the   8
            Housing series     Oil level 1)
            232(00)  235(00)                   running level will either rise or fall from the
                                               static level.
            –                  in.
            23226   23528      2  1 /16
            23220   23526      2  3 /8
            23236              2  7 /16
            23238   23538      2  1 /2
            23240   23540      2  1 /2
            23244   23544      3  3 /16


            1)  The oil level is measured from the base of the housing.
             Mark the static and running level on the oil level gauge.























                                                                             411
   410   411   412   413   414   415   416   417   418   419   420