609 2z deep groove ball bearing :1,ABEC-3,5;Z2V2, ... End cover:ZZ,RS 4,Noise level:Z1,Z2 5,C2,C0,C3.. Lily bearing is a specialized manufacturer of ... 609 2z deep groove ball bearing. Features:1),Shield / closure: Open, ... level codes: V4, V3, V2, V14),Internal clearance codes: C0,C2, C3, C4, C55),Material: AISI52100, AISI440C, AISI304, AISI316, Ceramic6 ...