D | 
                          270 mm | 
                            B | 
                          45 mm | 
                            Cr | 
                          457 rpm | 
                            Cor | 
                          610 rpm | 
                            Reference speed | 
                          2400 rpm | 
                            limit speed | 
                          2800 rpm | 
                            Type | 
                          圆柱滚子轴承 | 
