R,MR Inch Size Bearing

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Detail

Basic	Nominal Bearing Dimensions								Preferred Shoulder Diameters
Bearing	d		D		B				r (min)		Shaft		Housing
No.	d		D		Open		Shielded sealed		r (min)		Shaft		Housing
	mm	inch	mm	inch	inch	mm	inch	mm	mm	inch	mm	inch	mm	inch
R3	4.763	0.1875	12.7	0.5	3.97	0.1562	4.98	0.196	0.15	0.006	6.35	0.25	11.125	0.438
R3A	4.763	0.1875	12.7	0.5	4.98	0.196	4.98	0.196	0.15	0.006	6.35	0.25	11.125	0.438
R4	6.35	0.25	15.875	0.625	4.98	0.196	4.98	0.196	0.2	0.008	7.95	0.313	14.3	0.563
R4A	6.35	0.25	19.05	0.75	5.56	0.2188	7.14	0.2812	0.3	0.012	8.738	0.344	16.662	0.656
R6	9.525	0.375	22.225	0.875	5.56	0.2188	7.14	0.2812	0.3	0.012	11.913	0.469	19.837	0.781
R8	12.7	0.5	28.575	1.125	6.35	0.25	7.94	0.3125	0.3	0.012	15.088	0.594	26.187	1.031
R8-7	11.113	0.4375	28.575	1.125	6.35	0.25	...	...	0.3	0.012	...	...	...	...
R10	15.875	0.625	34.925	1.375	7.14	0.2812	8.73	0.3438	0.6	0.024	19.05	0.75	31.75	1.25
R12	19.05	0.75	41.275	1.625	7.94	0.3125	11.11	0.4375	0.6	0.024	23.012	0.906	37.313	1.469
R14	22.225	0.875	47.625	1.875	9.525	0.375	12.7	0.5	0.79	0.031	26.187	1.031	43.663	1.719
R16	25.4	1	50.8	2	9.525	0.375	12.7	0.5	0.79	0.031	29.362	1.156	46.838	1.844
R18	28.575	1.125	53.975	2.125	9.525	0.375	12.7	0.5	0.79	0.031	32.537	1.281	50.013	1.969
R20	31.75	1.25	57.15	2.25	9.525	0.375	12.7	0.5	0.79	0.031	35.712	1.406	53.188	2.094
R22	34.925	1.375	63.5	2.5	11.113	0.4375	14.288	0.5625	0.79	0.031	38.887	1.531	59.538	2.344
R24	38.1	1.5	66.675	2.625	11.113	0.4375	...	...	0.79	0.031	42.062	1.656	62.713	2.469
☆We reserve the right to change specifications and other information included in this catalogue without notice.