Inner ring;

 Designation        Bore size       Outside Diameter           Height

IR                          5                          8                              12

IR                          5                          8                                6

IR                          6                          9                              12

IR                          6                          9                              16

IR                          6                          10                            10

IR                          6                          10                             12

IR                          7                          10                            10.5

IR                          7                          10                           12   

IR                          7                          10                           12   

IR                          7                          10                           16

IR                          8                          12                            10  

IR                          8                          12                            10.5

IR                          8                         12                              12  

IR                          70                        80                             25

IR                         65                         75                             28