Deep groove ball bearing feature,please read IXIN pdf catalog for exact selection.Specifications:1) Shield / Seals: Open bearing, Z, ZZ, RS, 2RS3) Tolerance codes: ABEC-1, ABEC-3, P0,P6,P44) Vibration Value: V4, V3, V2, V15) GCr15, 100Cr6, 52100,C457) Retainer: PTFE, nylon, PEEK or stainless steel8) Bore size: 1 - 100mm9) Model: 672-6709,..