D1
                           | 
                          
                            408.5
                           | 
                          
                            
                              Shoulder diameter outer ring
                            
                           | 
                        
                          
                            Damax
                           | 
                          
                            408.5
                           | 
                          
                            
                             Maximum diameter of housing shoulder
                            
                           | 
                        
                          
                            d1
                           | 
                          
                             312.5
                           | 
                          
                            
                             Shoulder diameter inner ring
                            
                           | 
                        
 
                          
                            damin
                           | 
                          
                            280.5
                           | 
                          
                            
                             Minimum diameter shaft shoulder
                            
                           | 
                        
                          
                            dcmin
                           | 
                          
                            312.5
                           | 
                          
                            
                             Minimum shaft shoulder
                            
                           | 
                        
                          
                            F
                           | 
                          
                            280.6
                           | 
                          
                            
                             Raceway diameter inner ring
                            
                           | 
                        
                          
                            ramax
                           | 
                          
                            5
                           | 
                          
                            
                             Maximum fillet radius
                            
                           | 
                        
                          
                            rmin
                           | 
                          
                            5
                           | 
                          
                            
                             Minimum chamfer dimension
                            
                           | 
                        
                          
                            s
                           | 
                          
                            10
                           | 
                          
                            
                              Axial displacement
                            
                           |