... applications 4. quick delivery NTN NSK KOYO Thrust ball bearing 51217d*D*T=85mm*125mm*31mmTypes: (1) unidirectional thrust bearings(2) Bidirectional thrust ball bearings 51000 Sizes: ID: 25 ... : 51000, 52000, 53000, 53000U, BS, 230000 Other brands :SKF,TIMKEN,NSK,NTN,THK,HRB,ZWZ,LYC ,etcOur own brand is YAOXIN ... OEM services Please contact us if you need any help. NSK KOYO Thrust ball bearing 51217