da
                           | 
                          
                            177.2
                           | 
                          
                            
                              Minimum diameter of shaft shoulder
                            
                           | 
                        
                          
                            r1min
                           | 
                          
                            2
                           | 
                          
                            
                              Minimum chamfer dimension
                            
                           | 
                        
                          
                            H
                           | 
                          
                            
                              12
                            
                           | 
                          
                            
                             diameter of housing shoulder tolerance 
                            
                           | 
                        
                          
                            F
                           | 
                          
                            178.5
                           | 
                          
                            
                             Inner race diameter
                            
                           | 
                        
                          
                            Da
                           | 
                          
                            206.5
                           | 
                          
                            
                             Maximum diameter of bearing block shoulder
                            
                           | 
                        
                          
                            ns
                           | 
                          
                            6.5
                           | 
                          
                            
                             Slot width of lubricating groove
                            
                           | 
                        
                       
                          
                            ds
                           | 
                          
                            3.2
                           | 
                          
                            
                             Lubrication hole diameter
                            
                           | 
                        
                          
                            H
                           | 
                          
                            
                              12
                            
                           | 
                          
                            
                             diameter of housing shoulder tolerance 
                            
                           | 
                        
                          
                            s
                           | 
                          
                            2.7
                           | 
                          
                            
                             Axial displacement
                            
                           | 
                        
                          
                            ra1max
                           | 
                          
                            2
                           | 
                          
                            
                              Maximum cavity radius
                            
                           |