Model Number   NUP6/660.4Q4/C9-1            Original 928/660.4Q 
Number of Row Single                                      Type  Cylindrical Roller Bearing
Bore  d（mm） 660                                           Outer   D（mm）813 
Width  B（mm）108                                          Mass W（kg）129 
Overall Width  T（mm）                                    Chamfer（Rmin）  
rotate speed（r/min）