Small Bearings

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Small bearings :

Small bearings is one kind of deep groove ball bearing, usually we call deep groove ball bearings as small ball bearings when the inner diameter range from 1mm to 50mm, Metric and imperial sizes miniature bearings are included. These small bearings have greatly wide range of applied fields including Skateboard, RC Car, Dental, Fishing Reel ,Yoyo, Instrument, Electric Motor, Medical and so on.

GB bearing can supply all kinds of small bearings with different material, including chrome steel, stainless steel and ceramic. Except normal small bearing, we also can manufacture miniature flanged bearing, miniature thrust bearing, we accept custom bearing according to customer requirements as well.

Usually small bearings we talk are radial deep groove ball bearings, they have the following features:

1, Seals form: open, metal shielded(zz), rubber seals(2rs).

2, Accuracy class: ABEC-1, ABEC-3, ABEC-5, ABEC-7, ABEC-9,

Bearing Specifications 60 Series

Bearing.	Bore d mm in.	O.D D mm in.	Width B mm in.	Chamferr min mm	Load Rating		Ball Complement		Maxrunout speed		Weight (kg)
					Dynamic Cr	Static Cor	No.	Size mm	Grease r/min	Oil r/min
604	4 .1575	12 .4724	4 .1575	0.2	0.97	0.36	8	1.588	43000	51000	0.002
605	5 .1969	14 .5512	5 .1969	0.2	.33	0.505	8	2	39000	46000	0.0035
606	6 .2362	17 .6693	6 .2362	0.3	1.13	0.56	8	2.381	30000	38000	0.006
607	7 .2756	19 .7480	6 .2362	0.3	2.01	1.05	7	3.50	28000	36000	0.008
608	8 .3150	22 .8661	7 .2756	0.3	2.53	1.36	7	3.969	26000	34000	0.015
609	9 .3543	24 .9449	7 .2756	0.3	2.57	1.36	7	3.969	24000	32000	0.016
6000	10 .3937	261 .0236	8 .3150	0.3	3.52	1.95	7	4.763	22000	30000	0.019
6001	12 .4724	281 .1024	8 .3150	0.3	3.93	2.23	8	4.763	19000	26000	0.021
6002	15 .5906	321 .2598	9 .3543	0.3	4.30	2.51	9	4.763	18000	24000	0.079
6003	17 .6693	351 .3780	10 .3937	0.3	4.62	2.79	10	4.763	17000	22000	0.116
6004	20 .7874	421 .6535	12 .4724	0.6	7.22	4.46	9	6.35	15000	19000	0.155
6005	25 .9843	471 .8504	12 .4724	0.6	7.74	4.96	10	6.35	14000	18000	0.079
6006	301 .1811	552 .1654	13 .5118	1.0	13.20	8.30	11	7.144	12000	15000	0.116
6007	351 .3780	622 .4409	14 .5512	1.0	16.00	10.30	11	7.938	10000	13000	0.155
6008	401 .5748	682 .6772	15 .5906	1.0	16.80	11.50	12	7.938	8000	11000	0.185
6009	451 .7717	752 .9528	16 .6299	1.0	21.00	15.10	12	8.731	7200	9000	0.231
6010	501 .9685	803 .1496	16 .6299	1.0	21.80	16.60	13	8.731	6400	7800	0.250

Bearing Specifications 62 Series

Bearing.	Bore d mm in.	O.D D mm in.	Width B mm in.	Chamfer r min mm	Load Rating		Ball Complement		Maxrunout speed		Weight (kg)
					Dynamic Cr	Static Cor	No.	Size mm	Grease r/min	Oil r/min
624	4 .1575	13 .5118	5 .1969	0.2	1.31	0.49	6	2.381	36000	45000	0.0032
625	5 .1969	16 .6299	6 .2362	0.3	1.76	0.68	6	3.175	32000	40000	0.0048
626	6 .2362	19 .7480	6 .2362	0.30	2.01	1.05	7	3.50	28000	36000	0.008
627	7 .2756	22 .8661	7 .2756	0.30	2.53	1.36	7	3.969	26000	34000	0.014
628	8 .3149	24 .9448	8 .3150	0.30	2.57	1.36	7	3.969	24000	32000	0.016
629	9 .3543	261 .0236	8 .3150	0.30	3.50	1.95	7	4.763	22000	30000	0.019
6200	10 .3937	301 .1811	9 .3543	0.60	3.93	2.23	8	4.763	19000	26000	0.032
6201	12 .4724	321 .2598	10 .3937	0.60	5.25	3.05	7	5.953	18000	24000	0.035
6202	15 .5906	351 .3780	11 .4331	0.30	5.88	3.49	8	5.953	17000	22000	0.045
6203	17 .6693	401 .5748	12 .4724	0.60	7.36	4.48	8	6.77	16000	20000	0.064
6204	20 .7874	471 .8504	14 .5512	1.0	9.88	6.20	8	7.938	14000	18000	0.103
6205	25 .9843	522 .047	15 .5906	1.0	10.78	6.98	9	7.938	12000	16000	0.127
6206	301 .1811	622 .44.9	16 .6299	1.0	19.50	11.30	9	9.525	10000	13000	0.199
6207	351 .3780	722 .8346	17 .6693	1.1	25.70	15.30	9	11.112	8800	10000	0.287
6208	401 .5748	803 .1496	18 .7087	1.1	29.10	17.80	9	12	7700	9200	0.367
6209	451 .7717	853 .3465	19 .7480	1.1	32.50	20.40	10	12	6800	8200	0.416
6210	501 .9685	903 .5433	20 .7874	1.1	35.00	23.20	10	12.7	6100	7300	0.462

Bearing Specificafions 63 & inch R Series

Bearing.	Bore d mm in.	O.D D mm in.	Width B mm in.	Chamfer r min mm	Load Rating		Ball Complement		Maxrunout speed		Weight (kg)
					Dynamic Cr	Static Cor	No.	Size mm	Grease r/min	Oil r/min
6300	10 .3937	351 .3780	11 .4331	0.60	5.88	3.47	7	6.35	18000	24000	0.0532
6301	12 .4724	371 .4566	12 .4724	1.0	7.48	4.65	6	7.938	17000	22000	0.0574
6302	15 .5906	421 .6535	13 .5118	1.0	8.80	5.43	7	7.938	16000	20000	0.0804
6303	17 .6693	471 .8504	14 .5511	1.0	10.45	6.56	7	8.731	15000	19000	0.1096
6304	20 .7874	522 .074	15 .5906	1.1	12.26	7.81	7	9.525	14000	17000	0.1417
6305	25 .9843	622 .4409	17 .6692	1.1	17.22	11.39	7	11.50	12000	14000	0.2193
6306	301 .1811	722 .8346	19 .7480	1.1	26.70	15.00	8	12	8000	10000	0.3498
6307	351 .3780	803 .1496	21 .8268	1.5	33.50	19.10	8	13.494	6800	8000	0.4542
6308	401 .5748	903 .5433	23 .9055	1.5	40.50	24.00	8	15.081	5800	7200	0.6394
6309	451 .7717	1003 .9370	25 .9843	1.5	53.00	32.00	8	17.462	5000	6200	0.8363
6310	501 .9685	1104 .3307	271 .0630	2	62.00	38.50	8	19.05	4400	5500	1.0822

Bearing No.	Bore		Outer Diameter		Width				Radius		Load Rating (KN)		Weigt (kg)
	d		D		B				r
					Open		Seaked		min		Dynamic	Static
	mm	inch	mm	inch	mm	inch	mm	inch	mm	inch	Cr	Cor
R3	4.762	.1875	12.700	.5000	3.696	.1562	4.980	.1960	0.30	.012	1.010	0.480	0.0022
R3A	4.762	.1875	12.700	.5000	4.978	.1960	4.980	.1960	0.30	.012	1.310	0.485	0.0025
R4	6.350	.2500	15.875	.6250	4.978	.1960	4.980	.1960	0.30	.012	1.136	0.558	0.005
R4A	6.350	.2500	19.050	.7500	5.556	.2188	7.144	.2821	0.40	.016	2.175	1.136	0.008
R6	9.525	.3750	22.225	.8750	5.556	.2188	7.144	.2821	0.40	.016	2.560	1.350	0.011
R8	12.700	.5000	28.575	.1.1250	6.350	.2500	7.938	.3125	0.40	.016	3.930	2.230	0.018
R10	15.875	.6250	34.925	.1.3750	7.144	.2812	8.731	.3438	0.80	.030	4.620	2.790	0.037
99502H	15.875	.6250	34.925	.1.3750	...	...	11.000	.4331	0.80	.030	4.620	2.790	0.042

Bearing Specifications 68 Series

Bearing.	Bore d mm in.	O.D D mm in.	Width B mm in.	Chamfer r min mm	Load Rating		Ball Complement		Maxrunout speed		Weight (kg)
					Dynamic Cr	Static Cor	No.	Size mm	Grease r/min	Oil r/min
685	5 .1969	11 .4331	5 .1969	0.15	0.715	0.282	8	1.588	35000	45000	0.0011
686	6 .2362	13 .5118	4 .1969	0.15	1.08	0.44	8	2.0	33000	42000	0.0019
687	7 .2756	14 .5512	5 .1969	0.15	1.17	0.51	9	2.0	31000	40000	0.0021
688	8 .315	16 .6299	5 .1969	0.2	1.26	0.585	9	2.381	29000	38000	0.0031
689	9 .3543	17 .6693	5 .1969	0.2	1.72	0.82	11	2	28000	36000	0.0032
6800	10 .3937	19 .7480	5 .1969	0.3	1.83	0.952	9	2.381	26000	34000	0.005
6800W7	10 .3937	19 .7480	7 .2756	0.3	1.83	0.952	9	2.381	26000	34000	0.006
6801	12 .4724	21 .8268	5 .1969	0.3	1.92	1.04	12	2.381	22000	30000	0.006
6802	15 .5906	24 .9449	5 .1969	0.3	2.08	1.26	14	2.381	20000	28000	0.007
6803	17 .6693	261 .0236	5 .1969	0.3	2.81	1.72	15	2.381	19000	26000	0.008
6804	20 .7874	321 .2598	7 .2756	0.3	4.00	2.47	13	3.5	17000	22000	0.019
6805	25 .9843	371 .4567	7 .2756	0.3	4.30	2.95	15	3.5	15000	19000	0.022
6806	301 .1811	421 .6535	7 .2756	0.3	4.70	3.65	19	3.175	13000	17000	0.026
6807	351 .3780	471 .8504	7 .2756	0.3	4.90	4.05	22	3.175	11000	15000	0.029
6808	401 .5748	522 .0472	7 .2756	0.3	5.10	4.40	22	3.175	9000	13000	0.033
6809	451 .7717	582 .2835	7 .2756	0.3	6.40	6.40	24	3.175	7000	11000	0.040
6810	501 .9685	652 .5591	7 .2756	0.3	6.60	6.60	24	3.175	5000	9000	0.052

Bearing Specifications 69 Series

Bearing.	Bore d mm in.	O.D D mm in.	Width B mm in.	Chamfer r min mm	Load Rating		Ball Complement		Maxrunout speed		Weight (kg)
					Dynamic Cr	Static Cor	No.	Size mm	Grease r/min	Oil r/min
693	3 .1181	8 .315	3 .1181	0.15	0.56	0.18	6	1.588	54000	63000	0.0006
W693	3 .1181	8 .315	4 .1181	0.15	0.56	0.18	6	1.588	54000	63000	0.0007
694	4 .1575	11 .4331	4 .1575	0.15	0.715	0.276	7	2	45000	52000	0.0018
695	5 .1969	13 .5118	4 .1575	0.2	1.08	0.43	8	2.0	34000	43000	0.0024
696	6 .2362	15 .5906	5 .1969	0.2	1.35	0.53	8	2.381	32000	40000	0.0038
697	7 .2756	17 .6693	5 .1969	0.3	1.61	0.715	9	2.381	30000	38000	0.0052
698	8 .315	19 .7480	6 .2362	0.3	1.99	0.865	7	3.5	28000	36000	0.0073
699	9 .3542	20 .7874	6 .2362	0.3	2.48	1.09	9	2.381	27000	34000	0.0082
6900	10 .3937	22 .8661	6 .2362	0.3	2.70	1.27	12	2.381	25000	32000	0.009
6901	12 .4724	24 .9449	6 .2362	0.3	2.89	1.46	9	3.5	20000	28000	0.011
6902	15 .5906	281 .1024	7 .2756	0.3	4.10	2.06	10	3.969	19000	26000	0.016
6903	17 .6693	301 .1811	7 .2756	0.3	4.65	2.58	11	3.969	18000	24000	0.018
6904	20 .7874	371 .4567	9 .6543	0.3	6.40	3.70	11	4.763	17000	22000	0.036
6905	25 .9843	421 .6535	9 .6543	0.3	7.05	4.55	13	4.763	14000	18000	0.042
6906	301 .1811	471 .8504	9 .6543	0.3	7.25	5.00	14	4.763	12000	16000	0.048
6907	351 .3780	552 .1652	10 .3937	0.3	11.20	7.45	13114	5.953	10000	14000	0.074
6908	401 .5748	622 .4409	12 .4724	0.3	14.60	10.20	14	6.747	8000	12000	0.110
6909	451 .7717	682 .6772	12 .4724	0.3	15.10	11.20	15	6.747	6000	10000	0.128
6910	501 .9685	722 .8346	12 .4724	0.3	15.60	12.20		6.747	4000	8000	0.132

small bearings applications:
GB small bearings is widely use for different industry.
Electronic power tools
Motor
Fan
Home applicance : washing machine, vacuum cleaner; coffee maker
Sport machine : skateborad,running machine
Motorcycle

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