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Lubricants suitable for lubrication systems






               fluid                                           semi-fluid                   non-fluid

                                                                                                                      Introduction





                                                                      Fluid
                                     Oil                                               Grease
                                                                     grease











       ISO VG     3   10    32   100   320   680   1 500  2 200  3 200
       N LGI grades                                                000   00    0     1     2    3     4










                                                Oil and fluid grease
                                                The viscosity is an expression of a fluid’s  internal friction  Oils are classified in ISO VG
                                                viscosity classes from 2 to 3 200  NLGI grade 000, 00 and 0 greases are called fluid
                                                greases  Different types of oils are available, including mineral oils, organic oils and
                                                synthetic oils  A compatibility check is recommended prior to using any oil with
                                                SKF lubrication systems














                                                Grease
                                                Greases are consistent lubricants (NLGI grade 1–6)  They are soft to hard, triple-
                                                component mixtures of a base oil as the lubricating fluid, a thickening agent and
                                                additives  In most instances, greases of NLGI grade 1 up to 3 are suitable for use
                                                in a lubrication system  A compatibility check should be made prior to using any
                                                grease with SKF lubrication systems









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