D | 
                          55 mm | 
                            B | 
                          19 mm | 
                            Cr | 
                          39.6 rpm | 
                            Cor | 
                          44 rpm | 
                            Reference speed | 
                          13000 rpm | 
                            limit speed | 
                          15000 rpm | 
                            Type | 
                          圆柱滚子轴承 | 
