1.Precision: ABEC-3, ABEC-5, ABEC-7 2,Vibration level codes:V4, V3, V2, V1 3.Internal clearance codes:C0,C2, C3, C4, C5 1)Shield / closure: Open,Teflon Sealed,Rubber Seals,2 Metal Shield2)Tolerance codes: ABEC-1, ABEC-3, ABEC-5, ABEC-73)Vibration level codes: V4, V3, V2, V14)nternal clearance codes: C0,C2, C3, C4, C55)Material: AISI52100, AISI440C, AISI304, AISI316, Ceramic6)Retainer: PTFE, Nylon, PEEK Or Stainless Steel

Bearing modle			Boundary dimension
			d	D	Df	B	Bf
Flange	Open	Shield	mm	mm	mm	mm	mm
-	R09	-	0.04	1.016	0.125	3.175	-
F	R0	ZZ	0.0469	1.191	0.1562	3.969	0.2031
F	R1	ZZ	0.055	1.397	0.1875	4.762	0.234
F	R1-4	ZZ	0.0781	1.984	0.25	6.35	0.296
F	R133	ZZ	0.0938	2.381	0.1875	4.762	0.234
F	R1-5	ZZ	0.0938	2.381	0.3125	7.938	0.359
F	R144	ZZ	0.125	3.175	0.25	6.35	0.296
F	R2-5	ZZ	0.125	3.175	0.3125	7.938	0.359
F	R2-6	ZZ	0.125	3.175	0.375	9.525	0.422
F	R2	ZZ	0.125	3.175	0.375	9.525	0.44
-	R2A	ZZ	0.125	3.175	0.5	12.7	-
F	R155	ZZ	0.1562	3.969	0.3125	7.938	0.359
F	R156	ZZ	0.1875	4.762	0.3125	7.938	0.359
F	R166	ZZ	0.1875	4.762	0.375	9.525	0.422
-	R3	ZZ	0.1875	4.762	0.5	12.7	-
-	FR3	ZZ	0.1875	4.762	0.5	12.7	0.565
-	R3A	ZZ	0.1875	4.762	0.625	15.875	-
F	R168	ZZ	0.25	6.35	0.375	9.525	0.422
F	R188	ZZ	0.25	6.35	0.5	12.7	0.547
F	R4	ZZ	0.25	6.35	0.625	15.875	0.69
-	R4A	ZZ	0.25	6.35	0.75	19.05	-
F	R1810	ZZ	0.3125	7.938	0.5	12.7	0.547
F	R6	ZZ	0.375	9.525	0.875	22.225	0.969
F	R8	ZZ	0.5	12.7	1.125	28.575	1.2252
-	R10	ZZ	0.625	15.875	1.375	34.925	-
-	R12	ZZ	0.75	19.05	1.625	41.275	-
-	R1038	ZZ	0.375	9.525	0.625	15.875	-

high-quality& high-speed / R series / Miniature bearing