... P5 3.Silience working ZV3 5.Bulk supply Auto ball bearing features,for detailed technical data,please ... download IXIN pdf catalog:1) Shield / Seals: Open bearing, Z, ZZ, RS, 2RS2) Internal clearance codes ... : AISI52100, AISI440C, AISI304, AISI316, ceramicBearing No. reference:Auto ball bearing Bearing No.dDBBearing No.dDB87602154213/15BR20352035831915431316304/(68304X2)20521287502154511 ...