Thrust ball bearing 51113 1.low noise with high speed 2.deliver on ... 4.ISO9001:2000 Thrust ball bearing 51113Serise:51100,51200,51300,51400,52200,52300Brand:NSK,FAG,INA,KOYO,SKF,TIMKEN,HRB,LYC,ZWZ ... with the ring, and the shell with the said seat. Chrome steel GCr15 Thrust ball bearing 51113