Specifications

R series deep groove ball bearing:
1. OEM manufacturer
2. high-precision, low noice
3. sample acceptable

R series deep groove ball bearing:

 

Chrome steel, Hardness HRC 61 to 64; P0, P6 and P5 quality; Z1V1 or Z2V2.

Items	Bore		Outer Diameter		Width				Radius		Load Rating		Ball Complement		Weight (kg)
					OPEN		SHIELDED
							SEALED
	mm	inch	mm	inch	mm	inch	mm	inch	mm	inch	Dynamic	Static	No.	Size
R3	4.762	0.1875	12.7	0.5	3.97	0.1562	4.98	0.196	0.3	0.012	1.01	0.48	6	2.381	0.0022
R4	6.35	0.25	15.875	0.625	4.98	0.196	4.98	0.196	0.3	0.012	1.136	0.558	8	2.381	0.005
R6	9.525	0.375	22.225	0.875	5.556	0.2188	7.144	0.2821	0.4	0.016	2.56	1.35	7	3.969	0.011
R8	12.7	0.5	28.575	1.125	6.35	0.25	7.938	0.3125	0.4	0.03	0.93	2.23	8	4.763	0.018
R10	15.875	0.625	34.925	1.375	7.144	0.2812	8.731	0.3438	0.8	0.03	-	-	8	5.953	0.037
R12	19.05	0.75	41.275	1.625	7.94	0.3125	11.113	0.4375	0.8	0.03	7.24	4.463	9	6.35	0.047
R14	22.225	0.875	47.625	1.875	9.626	0.3705	12.7	0.5	0.8	0.03	7.74	4.96	-	-	0.072
R16	25.4	1	50.8	2	9.525	0.3705	12.7	0.5	0.8	0.03	7.74	5.16	-	-	0.085
R18	28.575	1.125	53.975	2.125	9.525	0.3705	12.7	0.5	0.8	0.03	10.18	6.91	-	-	0.09
R20	31.75	1.25	57.15	2.25	9.525	0.3705	12.7	0.5	0.8	0.03	10.8	7.52	-	-	0.095
R22	34.925	1.375	63.5	2.5	11.12	0.4375	14.288	0.5625	0.8	0.03	12.28	8.5	-	-	0.105
R24	38.1	1.5	66.675	2.625	11.12	0.4375	14.288	0.5625	0.8	0.03	14.35	10.24	-	-	0.12
R156	4.763	0.1875	7.938	0.3125	2.78	0.1094	3.18	0.125	0.1	0.004	-	-	-	-	0.00044
R166	4.763	0.1875	9.525	0.375	3.18	0.125	3.18	0.125	0.1	0.004	-	-	-	-	0.0008
R168	6.35	0.25	9.525	0.375	3.18	0.125	3.18	0.125	0.1	0.004	-	-	-	-	0.0006
R188	6.65	0.25	12.7	0.5	3.18	0.125	4.76	0.1875	0.15	0.006	-	-	8	1.588	0.0016
R3A	4.762	0.1875	12.7	0.5	4.978	0.196	4.98	0.196	0.3	0.012	1.31	0.485	7	2.381	0.0025
R4A	6.35	0.25	19.05	0.75	5.556	0.218	7.144	0.2821	0.4	0.016	2.175	1.136	6	3.969	0.008
R8-7	11.113	0.4375	28.575	1.125	6.35	0.25	-	-	0.4	0.016	4.62	2.79	8	4.763	0.015