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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 mm in. | O.D | Width | Chamferr min | Load Rating | Ball Complement | Maxrunout speed | Weight | |||
|
|
|
|
| Dynamic | Static | No. | Size | Grease | Oil |
|
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 | O.D | Width | Chamfer | Load Rating | Ball Complement | Maxrunout speed | Weight | |||
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|
|
|
| Dynamic | Static | No. | Size | Grease | Oil |
|
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 | O.D | Width | Chamfer | Load Rating | Ball Complement | Maxrunout speed | Weight | |||
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|
|
|
| Dynamic | Static | No. | Size | Grease | Oil |
|
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 | Bore | Outer Diameter | Width | Radius | Load Rating | Weigt | |||||||
| 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 | O.D | Width | Chamfer | Load Rating | Ball Complement | Maxrunout speed | Weight | |||
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|
|
|
| Dynamic | Static | No. | Size | Grease | Oil |
|
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 | O.D | Width | Chamfer | Load Rating | Ball Complement | Maxrunout speed | Weight | |||
|
|
|
|
| Dynamic | Static | No. | Size | Grease | Oil |
|
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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