... 2,Vibration level codes:V4, V3, V2, V1 3.Internal clearance codes:C0,C2, C3, C4, C5 ... ,2 Metal Shield2)Tolerance codes: ABEC-1, ABEC-3, ABEC-5, ABEC-73)Vibration level codes: V4 ... PEEK Or Stainless Steel Bearing modleBoundary dimensiondDDfBBfFlangeOpenShieldmmmmmmmmmm-R09-0.041.0160.1253.175-FR0ZZ0.04691.1910.15623. ... --R1038ZZ0.3759.5250.62515.875- high-quality& high-speed / R series / Miniature bearing