Model Number     51252                         Original   8252
Number of Row Single                            Type    Thrust Ball Bearing   
Bore  d（mm） 260                                 Outer   D（mm）360     
Width  B（mm）  79                                Mass W（kg）25  
Cor(kN)：1880                                         Cr(kN)：445 
Grease(r/min)：490                                Oil (r/min)：750
   
Overall Width  T（mm）                          Chamfer（Rmin）     
rotate speed（r/min）