Ball Bearing & Compenents

High Precision Miniature Bearings

Extra Miniature Bearings

Inch Series

• Extra-miniature bearing can greatly expand application
• An abundant variation of extra-miniature bearings is available for use in the lastest downsized and weight-saving products
• Available in high carbon chromium steel or stainless steel, plain or flanged, shielded or open types
• This particular line of miniature bearings enables manufacturers to further downsize their products without compromising requirements for speed, low starting and friction torque, reduced vibrations and noise
Specifications



Bore Diameter d	Outer Diameter D	Flange Diameter Df	Radius rs(min)	Open Bearing...				Seal, Shield Bearing							Load Rating(N)		Max. Speed		Cage Type	Ball Complement		Weight (Ref.)
				Width B	Flange Width Bf	Bearing Reference							.Width B1	.Flange Width Bf1
						Open	Flange Open	Shield	Flange Shield	Seal					C r(N)	Cor(N)	Grease	Oil		Qty.	Size	Open	Flange Open	Shield	Flange Shield
										(2RS)	(2RU)	(TTS)					x1000rpm			Z	Dw	g
1.016	3.175	-	0.10	1.191	-	R09	-	-	-	-	-	-	-	-	106	28	130	150	W	6	0.635	0.05	-	-	-
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1.191	3.967	5.156	0.10	1.588	0.330	R0*	FR0*	R0ZZ*	FR0ZZ*	-	-	-	2.380	0.787	112	33	110	130	W	7	0.600	0.10	0.12	0.15	0.20
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1.397	4.762	5.944	0.10	1.984	0.584	R1*	FR1*	R1ZZ*	FR1ZZ*	-	-	-	2.779	0.787	232	67	90	110	W	6	1.000	0.15	0.19	0.19	0.25
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1.984	6.350	7.518	0.10	2.380	0.584	R1-4*	FR1-4*	R1-4ZZS*	FR1-4ZZS*	-	-	-	3.571	0.787	284	96	67	80	W	7	1.000	0.40	0.46	0.53	0.61
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2.380	4.762	5.944	0.10	1.588	0.457	R133	FR133	-	-	-	-	-	-	-	189	60	80	95	W	7	0.800	0.10	0.13	-	-
.	4.762	5.944	0.10	-	-	-	-	R133ZZS*	FR133ZZS*	-	-	-	2.380	0.787	144	53	80	95	W	10	0.600	-	-	0.15	0.21
.	7.938	9.119	0.15	2.779	0.584	R1-5*	FR1-5*	R1-5ZZS*	FR1-5ZZS*	-	-	TTS	3.571	0.787	552	176	60	71	W	6	1.588	0.60	0.67	1.15	1.25
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3.175	6.350	7.518	0.10	2.380	0.584	R144J*	FR144J*	R144JZZS*	FR144JZZS*	-	-	-	2.779	0.787	311	110	67	80	J	8	1.000	0.27	0.33	0.32	0.40
.	6.350	7.518	0.10	2.380	0.584	R144*	FR144*	R144ZZS*	FR144ZZS*	-	-	TTS	2.779	0.787	284	96	67	80	W	7	1.000	0.27	0.33	0.40	0.48
.	7.938	9.119	0.10	2.779	0.584	R2-5*	FR2-5*	R2-5ZZ*	FR2-5ZZ*	-	-	TTS	3.571	0.787	558	180	60	67	W,J	6	1.588	0.50	0.57	0.74	0.84
.	9.525	10.719	0.15	2.779	0.584	R2-6*	FR2-6*	R2-6ZZ*	FR2-6ZZ*	2RS	2RU	TTS	3.571	0.787	640	227	53	63	W	7	1.588	0.96	1.05	1.23	1.35
.	9.525	11.176	0.30	3.967	0.762	R2*	FR2*	R2ZZ*	FR2ZZ*	2RS	2RU	-	3.967	0.762	631	219	56	67	J	7	1.588	1.04	1.20	1.37	1.53
.	12.700	-	0.30	4.366	-	R2A	-	R2AZZ	-	-	-	-	4.366	-	640	227	53	63	J	7	1.588	3.30	-	3.30	-
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3.967	7.938	9.119	0.10	2.779	0.584	R155*	FR155*	R155ZZS*	FR155ZZS*	-	-	-	3.175	0.914	359	150	53	63	W	10	1.000	0.51	0.58	0.61	0.72
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4.762	7.938	9.119	0.10	2.779	0.584	R156*	FR156*	R156ZZS*	FR156ZZS*	-	-	TTS	3.175	0.914	359	150	53	63	W	10	1.000	0.40	0.47	0.45	0.56
.	9.525	10.719	0.10	3.175	0.584	R166*	FR166*	R166ZZ*	FR166ZZ*	-	-	TTS	3.175	0.787	709	272	50	60	J	8	1.588	0.81	0.90	0.85	0.97
.	12.700	14.351	0.30	3.967	1.067	R3*	FR3*	R3ZZ*	FR3ZZ*	2RS	2RU	TTS	4.978	1.067	1301	488	43	53	J	7	2.381	2.21	2.50	2.95	3.24
.	15.875	-	0.30	4.978	-	R3A	-	R3AZZ	-	2RS	2RU	-	4.978	-	1480	621	38	45	J	8	2.381	4.75	-	5.08	-
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6.350	9.525	10.719	0.10	3.175	0.584	R168*	FR168*	R168ZZS*	FR168ZZS*	-	-	TTS	3.175	0.914	373	172	48	56	W	11	1.000	0.57	0.66	0.60	0.73
.	12.700	13.894	0.15	3.175	0.584	R188*	FR188*	R188ZZ*	FR188ZZ*	2RS	2RU	TTS	4.762	1.143	1082	442	40	50	J	8	2.000	1.60	1.71	2.32	2.54
.	15.875	17.526	0.30	4.978	1.067	R4*	FR4*	R4ZZ*	FR4ZZ*	2RS	2RU	-	4.978	1.607	1480	621	38	45	J	8	2.381	4.46	4.82	4.54	4.90
.	19.050	-	0.40	5.558	-	R4A	-	R4AZZ	-	2RS	2RU	-	7.142	-	2336	896	36	43	J	6	3.500	7.48	-	10.0	-
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7.938	12.700	13.894	0.15	3.967	0.787	R1810*	FR1810	R1810ZZS	FR1810ZZS*	-	-	TTS	3.967	0.787	542	276	40	48	W	12	1.200	1.39	1.54	1.57	1.72
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9.525	22.225	24.613	0.40	5.558	1.575	R6	FR6*	R6ZZ	FR6ZZ*	2RS	2RU	TTS	7.142	1.575	3332	1422	32	38	J	7	3.969	9.02	9.71	11.7	12.4
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12.700	28.575	31.120	0.40	6.350	1.575	R8	FR8*	R8ZZ	FR8ZZ*	2RS	2RU	TTS	7.938	1.575	5108	2413	27	32	J	8	4.762	11.6	13.0	24.1	25.6
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15.875	34.925	-	0.80	7.142	-	R10	-	R10ZZ	-	2RS	2RU	-	8.733	-	5988	3287	21	25	RJ	10	4.762	23.5	-	38.1	-
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19.050	41.275	-	0.80	7.938	-	R12	-	R12ZZ	-	2RS	2RU	-	11.113	-	9378	5057	17	21	RJ,TW	9	6.350	53.1	-	69.3	-
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Part Numbering System