Model Number     230/710                     Original 30531/710H  
Number of Row Single                           Type  Spherical Roller Bearing 
Bore  d（mm）710                                 Outer   D（mm）1030 
Width  B（mm） 236                              Mass W（kg） 
Overall Width  T（mm）                         Chamfer（Rmin）  
rotate speed（r/min）