Model Number   NU317                                Original  32317
Number of Row Single                                  Type   Cylindrical Roller Bearing    
Bore  d（mm）   85                                        Outer   D（mm）   180  
Width  B（mm）    41                                     Mass W（kg）   5.25  
Overall Width  T（mm）                                Chamfer（Rmin）     
rotate speed（r/min）