Inch R series Bearings | Deep Groove Ball Bearings exporter in China

Inch R series bearings Supplier

Inch R series Bearings is Single-row deep groove bearings ,which are the most common type of rolling bearings. Their use is widespread. The raceway grooves on both the inner and outer rings have circular arcs of slightly larger radius than that of the balls.
The Inch system series deep groove ball bearings that we designs and manufactures, go from 3.175 mm bore up to 66.675 mm external diameter.

Inch R series Bearings Dimension

Any combination of closures is available

Basic Bearing No.	Nominal Bearing Dimensions								Preferred Shoulder Diameters
	d		D		B				r (min)		Shaft		Housing
	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	12.700	0.5000	3.970	0.1562	4.980	0.1960	0.15	0.006	6.350	0.2500	11.125	0.4380
R3A	4.763	0.1875	12.700	0.5000	4.980	0.1960	4.980	0.1960	0.15	0.006	6.350	0.2500	11.125	0.4380
R4	6.350	0.2500	15.875	0.6250	4.980	0.1960	4.980	0.1960	0.20	0.008	7.950	0.3130	14.300	0.5630
R4A	6.350	0.2500	19.050	0.7500	5.560	0.2188	7.140	0.2812	0.30	0.012	8.738	0.3440	16.662	0.6560
R6	9.525	0.3750	22.225	0.8750	5.560	0.2188	7.140	0.2812	0.30	0.012	11.913	0.4690	19.837	0.7810
R8	12.700	0.5000	28.575	1.1250	6.350	0.2500	7.940	0.3125	0.30	0.012	15.088	0.5940	26.187	1.0310
R8-7	11.113	0.4375	28.575	1.1250	6.350	0.2500	…	…	0.30	0.012	…	…	…	…
R10	15.875	0.6250	34.925	1.3750	7.140	0.2812	8.730	0.3438	0.60	0.024	19.050	0.7500	31.750	1.2500
R12	19.050	0.7500	41.275	1.6250	7.940	0.3125	11.110	0.4375	0.60	0.024	23.012	0.9060	37.313	1.4690
R14	22.225	0.8750	47.625	1.8750	9.525	0.3750	12.700	0.5000	0.79	0.031	26.187	1.0310	43.663	1.7190
R16	25.400	1.0000	50.800	2.0000	9.525	0.3750	12.700	0.5000	0.79	0.031	29.362	1.1560	46.838	1.8440
R18	28.575	1.1250	53.975	2.1250	9.525	0.3750	12.700	0.5000	0.79	0.031	32.537	1.2810	50.013	1.9690
R20	31.750	1.2500	57.150	2.2500	9.525	0.3750	12.700	0.5000	0.79	0.031	35.712	1.4060	53.188	2.0940
R22	34.925	1.3750	63.500	2.5000	11.113	0.4375	14.288	0.5625	0.79	0.031	38.887	1.5310	59.538	2.3440
R24	38.100	1.5000	66.675	2.6250	11.113	0.4375	…	…	0.79	0.031	42.062	1.6560	62.713	2.4690

☆We reserve the right to change specifications and other information included in this catalogue without notice.

Other Parameters

Basic Bearing No.	Basic Load Ratings (lbs)		Factor	Limiting Speeds (1000 RPM)		Ball Complement		Bearing Weight (Approx.)
	Cr KN	Cor KN	fo	Grease rpm	Oil rpm	No.	Size mm	Weight
	Cr KN	Cor KN	fo	Grease rpm	Oil rpm	No.	Size mm	Ibs	kg
R3	1.310	0.490	53	41000	48000	6	2.3810	0.0066	0.0030
R3A	1.310	0.490	53	41000	48000	6	2.3810	0.0066	0.0030
R4	1.480	0.615	38	36000	43000	8	2.3810	0.0110	0.0050
R4A	2.340	0.885	36	34000	40000	6	3.9690	0.0198	0.0090
R6	3.350	1.410	38	32000	38000	7	3.9690	0.0198	0.0090
R8	5.400	2.360	30	30000	…	8	4.6730	0.0374	0.0170
R8-7	3.912	2.245	…	…	…	8	4.6730	…	…
R10	5.600	2.910	24	24000	…	9	4.6730	0.0748	0.0340
R12	7.246	4.445	20	20000	…	9	6.3500	…	…
R14	9.625	6.889	18000	28000	…	…	…	…	…
R16	9.625	6.889	16000	26000	…	…	…	…	…
R18	11.214	8.945	14000	24000	…	…	…	…	…
R20	11.214	8.945	12000	22000	…	…	…	…	…
R22	14.428	12.120	10000	18000	…	…	…	…	…
R24	15.760	13.320	8000	15000	…	…	…	…	…

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