Page 1
NationalBearings
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Deep Groove Ball Bearings
Deep groove ball bearings mainly take radial load as well as take moderate axial load. With less coefficient of friction, high limiting speed, large size range and variations of struc-ture, they are suitable for precision instrument, low noise motors, automobiles, motorcy-cles, and other common machinery, as a widely used type of bearings in machinery industry.
Deep Groove Ball Bearings Variations of Structure
Open Type Shielded Type Rubber Seals Snap Ring
ZZ 2RS NR
680, 690, 600, 620, 630, miniature bearing 6800, 6900, 16000, 6000, 6200, 6300, 6400
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Bearing number
Boundary dimensions (mm) Basic load ratings (kN)
Limiting speeds (mm)weight
(kg)Grease Oil
d D B rmin Cr Cor -2Z -2RS
695 5 13 4 0.2 1.08 0.43 43000 28000 50000 0.0025
605 5 14 5 0.2 1.33 0.505 40000 26000 47000 0.0035
625 5 16 5 0.3 1.46 0.56 43000 24000 50000 0.005
635 5 19 6 0.3 2.24 0.863 36000 22000 43000 0.009
696 6 15 5 0.2 1.73 0.67 38000 26000 45000 0.0037
606 6 17 6 0.3 2.26 0.835 34000 24000 40000 0.0066
626 6 19 6 0.3 2.23 0.895 36000 22000 43000 0.0084
636 6 22 7 0.3 3.3 1.35 30000 20000 37000 0.013
697 7 17 5 0.3 2.34 0.71 34000 23000 43000 0.0051
607 7 19 6 0.3 2.24 0.895 43000 22000 50000 0.0078
627 7 22 7 0.3 3.28 1.36 32000 20000 38000 0.0126
637 7 26 9 1.3 3.34 1.35 27000 18000 33000 0.024
698 8 19 6 0.3 2.24 0.91 34000 22000 41000 0.0072
608 8 22 7 0.3 3.28 1.36 31000 20000 43000 0.0119
628 8 24 8 0.3 3.32 1.43 31000 18000 36000 0.0172
638 8 28 9 0.3 3.53 1.94 26000 16000 31000 0.027
699 9 20 6 0.3 1.72 0.84 34000 20000 40000 0.0083
609 9 24 7 0.3 3.32 1.43 32000 19000 38000 0.0148
629 9 26 8 0.3 4.55 1.96 28000 18000 34000 0.0193
639 9 30 10 0.6 5.1 2.23 23000 16000 29000 0.034
Open Type Two Shields(ZZ)
Two Rubber Seals(2RS)
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Open Type Two Shields(ZZ)
Two Rubber Seals(2RS)
Bearing number
Boundary dimensions (mm) Basic load ratings (kN)
Limiting speeds (mm)weight
(kg)Grease Oil
d D B rmin Cr Cor -2Z -2RS
6800 10 19 5 0.3 1.72 0.84 34000 24000 40000 0.005
6900 10 22 6 0.3 2.7 1.27 32000 22000 38000 0.009
6000 10 26 8 0.3 4.59 1.97 30000 19000 36000 0.0197
6200 10 30 9 0.6 5.1 2.39 24000 17000 30000 0.0317
6300 10 35 11 0.6 7.66 3.47 20000 15000 26000 0.0548
6801 12 21 5 0.3 1.92 1.04 32000 20000 38000 0.006
6901 12 24 6 0.3 2.89 1.46 30000 20000 36000 0.01
6001 12 28 8 0.3 5.1 2.39 26000 17000 32000 0.0215
6201 12 32 10 0.6 6.76 3.05 22000 15000 28000 0.0364
6301 12 37 12 1 8.58 3.92 19000 14000 24000 0.0629
6802 15 24 5 0.3 2.07 1.26 28000 17000 34000 0.007
6902 15 28 7 0.3 4.35 2.26 26000 17000 30000 0.015
6002 15 32 9 0.3 5.62 2.84 22000 14000 28000 0.0307
6202 15 35 11 0.6 7.66 3.72 19000 13000 24000 0.0451
6302 15 42 13 1 11.4 5.4 17000 12000 20000 0.0826
6803 17 26 5 0.3 2.63 1.57 26000 15000 30000 0.007
6903 17 30 7 0.3 4.6 2.55 24000 15000 28000 0.017
6003 17 35 10 0.3 6.5 3.36 19000 13000 24000 0.0392
Page 4
NationalBearings
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Open Type Two Shields(ZZ)
Two Rubber Seals(2RS)
Bearing number
Boundary dimensions (mm) Basic load ratings (kN)
Limiting speeds (mm)weight
(kg)Grease Oil
d D B rmin Cr Cor -2Z -2RS
6203 17 40 12 0.6 10.3 4.79 17000 12000 20000 0.0649
6303 17 47 14 1 13.5 6.55 16000 11000 19000 0.116
6804 20 32 7 0.3 4 3.47 22000 13000 26000 0.017
6904 20 37 9 0.3 6.4 3.7 19000 12000 22000 0.037
6004 20 42 12 0.6 9.44 5.03 17000 11000 20000 0.0693
6204 20 47 14 1 12.99 6.65 15000 10000 18000 0.103
6304 20 52 15 1.1 16 7.88 13000 9500 16000 0.146
6805 25 37 7 0.3 4.3 2.95 18000 10000 22000 0.021
6905 25 42 9 0.3 7.05 4.55 16000 10000 19000 0.042
6005 25 47 12 0.6 10.1 5.85 15000 9500 18000 0.0804
6205 25 52 15 1 14 7.87 12000 8500 15000 0.128
6305 25 62 17 1.1 15.5 11.6 11000 7500 14000 0.227
6806 30 42 7 0.3 4.5 3.45 15000 9000 18000 0.024
6906 30 47 9 0.3 7.25 5 14000 8500 17000 0.052
6006 30 55 13 1 13.3 8.36 12000 8000 15000 0.117
6206 30 62 16 1 19.5 11.3 10000 7500 13000 0.203
6306 30 72 19 1.1 26.7 14.9 9000 6300 11000 0.356
Page 5
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Open Type Two Shields(ZZ)
Two Rubber Seals(2RS)
Bearing number
Boundary dimensions (mm) Basic load ratings (kN)
Limiting speeds (mm)weight
(kg)Grease Oil
d D B rmin Cr Cor -2Z -2RS
6807 35 47 7 0.3 4.75 3.9 13000 7500 16000 0.027
6907 35 55 10 0.6 10.6 7.25 12000 7100 15000 0.075
6007 35 62 14 1 16 10.3 10000 7000 13000 0.152
6207 35 72 17 1.1 25.6 15.35 9000 6300 11000 0.286
6307 35 80 21 1.5 33.4 19.2 8500 6000 1000 0.456
6808 40 52 7 0.3 4.9 4.35 12000 6700 14000 0.031
6908 40 62 12 0.6 13.7 10.1 11000 6500 13000 0.112
6008 40 68 15 1 16.8 11.6 9500 6300 12000 0.189
6208 40 80 18 1.1 27.6 147.4 8500 5600 10000 0.375
6308 40 90 23 1.5 10.8 24 7500 5000 9000 0.645
6809 45 58 7 0.3 5.35 5.25 11000 6000 13000 0.038
6909 45 68 12 0.6 14.1 10.9 9500 5800 12000 0.126
6009 45 75 16 1 19.9 14 9000 5600 11000 0.242
6209 45 85 19 1.1 31.2 20.4 7500 5000 9000 0.423
6309 45 100 25 1.5 48.9 29.3 6700 4500 8000 0.858
6810 50 65 7 0.3 6.42 6.19 9500 5300 11000 0.051
6910 50 72 12 0.6 14.5 11.7 9000 5200 10500 0.135
Page 6
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Open Type Two Shields(ZZ)
Two Rubber Seals(2RS)
Bearing number
Boundary dimensions (mm) Basic load ratings (kN)
Limiting speeds (mm)weight
(kg)Grease Oil
d D B rmin Cr Cor -2Z -2RS
6010 50 80 16 1 20.7 15.4 8500 5000 10000 0.262
6210 50 90 20 1.1 35.1 23.2 7000 4800 8500 0.47
6310 50 110 27 2 57.5 35.3 6300 4300 7500 1.1
6811 55 72 9 03 8.8 8.51 8500 4800 10000 0.081
6911 55 80 13 1.0 16.0 13.3 8000 4600 9500 0.189
6011 55 90 18 1.1 26.7 20.1 7500 4500 9000 0.382
6211 55 100 21 1.5 43.4 29.2 6300 4300 7500 0.612
6311 55 130 31 2.1 71.6 44.8 5600 3800 67 1.38
6812 60 78 10 0.3 11.5 10.9 8000 4500 9500 0.103
6912 60 85 13 1.0 19.4 16.3 7500 4400 9000 0.192
6012 60 95 18 1.1 30.2 23 6700 4300 8000 0.399
6212 60 110 22 1.5 47.8 32.9 6000 4000 7000 0.809
6312 60 130 31 2.1 81.9 51.8 5000 3400 6000 1.72
6813 65 85 10 0.6 11.9 12.1 7500 ---- 8600 0.128
6913 62 90 13 1.0 17.4 16.1 7100 4000 8300 0.218
6013 65 100 18 1.1 31.9 24.9 6300 4000 7500 0.417
6213 65 120 23 1.5 50.7 37.1 5300 3600 6300 1.05
6313 65 140 33 2.1 92.8 59.7 4800 3200 5600 2.12
Page 7
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Open Type Two Shields(ZZ)
Two Rubber Seals(2RS)
Bearing number
Boundary dimensions (mm) Basic load ratings (kN)
Limiting speeds (mm)weight
(kg)Grease Oil
d D B rmin Cr Cor -2Z -2RS
6014 70 110 20 1.1 38.7 30.4 6000 3600 7000 0.59
6214 70 125 24 1.5 55.8 41.1 5000 3400 6000 1.12
6314 70 150 35 2.1 104 68 4500 3000 5300 2.56
6015 75 115 20 1.1 40.3 33.2 5600 3400 6700 0.621
6215 75 130 25 1.5 60.8 45.4 4800 3200 5600 1.2
6315 75 160 37 2.1 113 77 4300 2800 5000 3.06
6016 80 125 22 1.1 42.4 35.6 5300 3200 6300 0.862
6216 80 140 26 2 71.5 54.3 4500 3000 5300 1.46
6316 80 170 39 2.1 123 86.5 3800 2600 4500 3.62
6017 85 130 22 1.1 47.3 40.1 5000 3000 6000 0.886
6217 85 150 28 2 77.2 59.3 4300 2800 5000 1.84
6317 85 180 41 3 133 96.5 3600 2400 4300 4.35
6018 90 140 24 1.5 52.8 45.1 4800 2800 5600 1.19
6218 90 160 30 2 96.1 71.5 3800 2600 4500 2.63
6318 90 190 43 3 143 107 3400 2400 4000 5.87
6019 95 145 24 4.5 58 50.1 4500 2800 5300 1.16
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Bearing number
Boundary dimensions (mm) Basic load ratings (kN)
Limiting speeds (mm)weight
(kg)Grease Oil
d D B rmin Cr Cor -2Z -2RS
6219 95 170 32 2.1 109 81.7 3600 2400 4300 2.19
6319 95 200 45 3 153 118 3200 2300 3800 5.07
6020 100 150 24 1.5 63.7 50.4 1300 2600 5000 1.15
6220 100 180 24 2.1 122 92.7 3400 2400 400 3.15
6320 100 215 47 3 173 140 3000 2200 3600 7
6021 105 160 26 2 69.8 61.2 4000 2400 4800 1.59
6221 105 190 36 201 133 104 3200 2200 3800 3.7
6321 105 225 49 3 182 153 2800 2100 3400 8.05
6022 110 170 28 2 75.1 67.3 3800 2400 4500 1.96
6222 110 200 38 2.1 144 117 3000 2000 36000 4.45
6322 110 240 50 3 203 180 2600 1900 3200 9.54
6024 120 180 28 2 88.3 79.7 3400 2200 4000 2.05
6224 120 215 40 2.1 156 131 2800 1900 3400 5.26
6026 130 200 33 2 102 3.9 3200 2000 3800 3.15
6226 130 230 40 3 156 132 2600 1700 3200 5.8
Open Type Two Shields(ZZ)
Two Rubber Seals(2RS)
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Bearing number
Boundary dimensions (inch) Basic load ratings (kN)
Limiting speeds (mm)weight
(kg)Grease Oil
d D B rmin Cr Cor -2Z -2RS
62200 10 30 14 0.6 5.10 2.39 ------- 18000 30000 0.04
62201 12 32 14 0.6 6.80 3.05 ------- 17000 28000 0.045
62202 15 35 13 0.6 7.65 3.75 ------- 14000 24000 0.054
62203 17 40 16 0.6 9.55 4.80 ------- 12000 20000 0.083
62204 20 47 18 1.0 12.8 6.60 ------- 10500 18000 0.13
62205 25 52 18 1.0 14.0 7.85 ------- 9000 15000 0.152
62206 30 62 19 1.0 19.5 11.3 ------- 7500 13000 0.244
62207 35 72 23 1.1 25.7 15.3 ------- 6300 11000 0.377
62208 40 80 23 1.1 29.1 17.8 ------- 5600 10000 0.442
Bearing number
Boundary dimensions (inch) Basic load ratings (kN)
Limiting speeds (mm)weight
(kg)Grease Oil
d D B rmin Cr Cor -2Z -2RS
63000 10 26 12 0.3 4.55 1.97 ------- 22000 36000 0.025
63001 12 28 12 0.3 5.10 2.37 ------- 18000 32000 0.029
63002 15 32 13 0.3 5.60 2.83 ------- 15000 28000 0.039
63003 17 35 14 0.3 6.00 3.25 ------- 13000 26000 0.052
63004 20 42 16 0.6 9.40 5.00 ------- 11000 20000 0.086
63005 25 47 16 0.6 10.1 5.85 ------- 9500 18000 0.102
63006 30 55 19 1.0 13.2 8.3 ------- 8000 15000 0.163
63007 35 62 20 1.0 16.0 10.3 ------- 6700 13000 0.216
63008 40 68 21 1.0 16.8 11.5 ------- 6000 12000 0.261
Open Type Two Shields(ZZ)
Two Rubber Seals(2RS)
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Open Type Two Shields(ZZ)
Two Rubber Seals(2RS)
Bearing number
Boundary dimensions (inch) Basic load ratings (kN)
Limiting speeds (mm)weight
(kg)Grease Oil
d D B rmin Cr Cor -2Z -2RS
R3/EE1 3/16 1/2 5/32 0.012 1.4 0.415 40000 ------ 50000 0.00321
R4A/EE2 1/4 3/4 9/32 0.016 2.55 1.05 28000 22000 38000 0.00725
R4/EE2 1/4 5/8 25/128 0.012 1.55 0.622 33000 22000 40000 0.00655
R6/EE3 3/8 7/8 7/32 0.016 3.46 1.41 29000 18000 36000 0.0111
R8/EE4 1/2 1.1/8 5/16 0.016 5.29 2.37 26000 17000 32000 0.023
R10/EE5 5/8 1.3/8 11/32 0.031 6.32 3.25 22000 13000 28000 0.035
R12/EE6 3/4 1.5/8 7/16 0.031 8.22 4.4 17000 11500 22500 0.066
R14/EE8 7/8 1.7/8 1/2 0.031 12.0 6.4 14500 11500 20000 0.102
R16/EE9 1 2 1/2 0.031 11.8 7.18 13600 9500 18500 0.085
R18/EE10 1.1/8 2.1/8 1/2 0.031 11.7 7.3 13000 8500 17500 0.088
Bearing number
Boundary dimensions (inch) Basic load ratings (kN)
Limiting speeds (mm)weight
(kg)Grease Oil
d D B rmin Cr Cor -2Z -2RS
RMS 4 1/2 1.5/8 5/8 0.063 12.1 5.10 ------- 12500 25000 0.096
RMS 5 5/8 1.13/16 5/8 0.063 12.6 5.55 ------- 10000 22000 0.117
RMS 6 3/4 2 11/16 0.063 16.5 7.85 ------- 9000 20000 0.156
RMS 7 7/8 2.1/4 11/16 0.063 19.2 9.40 ------- 9000 18000 0.197
RMS 8 1 2.1/2 3/4 0.094 22.1 11.0 ------- 8000 16000 0.262
RMS 9 1.1/8 2.13/16 13/16 0.094 30.8 16.6 ------- 7000 14000 0.347
RMS 10 1.1/4 3.1/8 7/8 0.094 37.7 19.6 ------- 6000 12500 0.476
RMS 11 1.3/8 3.1/2 7/8 0.094 45.3 24.0 ------- 8500 11500 0.608
RMS 12 1.1/2 3.1/4 15/16 0.094 49.5 26.7 ------- 5700 11000 0.753
Deep Groove Ball Bearings Inch Series
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Open Type Two Shields(ZZ)
Two Rubber Seals(2RS)
Deep Groove Ball Bearings Inch Series
Bearing number
Boundary dimensions (inch) Basic load ratings (kN)
Limiting speeds (mm)weight
(kg)Grease Oil
d D B rmin Cr Cor -2Z -2RS
RLS4 1/2 1.5/16 3/8 0.031 7.15 3.09 ------- 15000 30000 0.037
RLS5 5/8 1.9/16 3/8 0.031 10.9 5.25 ------- 12000 24000 0.059
RLS6 3/4 1.7/8 9/16 0.031 14.2 6.70 ------- 10000 21000 0.109
RLS7 7/8 2 9/16 0.031 14.4 7.00 ------- 9500 19000 0.116
RLS8 1 2.1/4 5/8 0.063 18.6 9.70 ------- 8500 17000 0.169
RLS9 1.1/8 2.1/2 5/8 0.063 20.2 11.3 ------- 8000 15000 0.219
RLS10 1.1/4 2.3/4 11/16 0.063 27.7 15.0 ------- 6500 13500 0.276
RLS11 1.3/8 3 11/16 0.063 30.2 17.5 ------- 9500 13000 0.333
RLS12 1.1/2 6 3/4 0.094 34.8 20.0 ------- 6300 12000 0.418
Page 12
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Open Type Two Shields(ZZ)
Two Rubber Seals(2RS)
Bearing number
Boundary dimensions (mm) Basic load ratings (kN)
Limiting speeds (mm)weight
(kg)Grease Oil
d D B rmin Cr Cor -2Z -2RS
S685 5 11 3 0.15 0.72 0.28 ------- 43000 ------- 0.0011
S695 5 13 4 0.20 1.08 0.43 ------- 40000 ------- 0.0024
S605 5 14 5 0.20 1.33 0.51 ------- 39000 ------- 0.0035
S625 5 16 5 0.30 1.76 0.68 ------- 37000 ------- 0.0048
S635 5 19 6 0.30 2.34 0.89 ------- 34000 ------- 0.0080
S686 6 13 4 0.15 1.08 0.44 ------- 39000 ------- 0.0019
S696 6 15 5 0.20 1.35 0.53 ------- 37000 ------- 0.0038
S606 6 17 6 0.30 2.91 0.87 ------- 35000 ------- 0.0060
S626 6 19 6 0.30 2.34 0.89 ------- 34000 ------- 0.0080
S636 6 22 7 0.30 3.30 1.35 ------- 31000 ------- 0.0130
S687 7 14 4 0.15 1.17 0.51 ------- 37000 ------- 0.0021
S697 7 17 5 0.3 1.61 0.72 ------- 35000 ------- 0.0052
S607 7 19 6 0.3 2.24 0.91 ------- 34000 ------- 0.0080
S627 7 22 7 0.3 3.35 1.40 ------- 32000 ------- 0.0130
S637 7 26 9 0.3 4.55 1.95 ------- 26000 ------- 0.0240
S688 8 16 4 0.2 1.26 0.59 ------- 35000 ------- 0.0031
S698 8 19 6 0.3 1.99 0.87 ------- 33000 ------- 0.0073
S608 8 22 7 0.3 3.35 1.4 ------- 32000 ------- 0.0120
Deep Groove Ball Bearings Stainless Steel
Page 13
NationalBearings
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Open Type Two Shields(ZZ)
Two Rubber Seals(2RS)
Deep Groove Ball Bearings Stainless Steel
Bearing number
Boundary dimensions (mm) Basic load ratings (kN)
Limiting speeds (mm)weight
(kg)Grease Oil
d D B rmin Cr Cor -2Z -2RS
S628 8 24 8 0.3 4.00 1.59 ------- 31000 ------- 0.0170
S638 8 28 9 0.3 4.55 1.95 ------- 26000 ------- 0.0290
S689 9 17 4 0.3 1.72 0.82 ------- 33000 ------- 0.0032
S699 9 20 6 0.3 2.48 1.09 ------- 32000 ------- 0.0082
S609 9 24 7 0.3 3.4 1.45 ------- 31000 ------- 0.0140
S629 9 26 8 0.3 4.55 1.96 ------- 26000 ------- 0.0200
S639 9 30 10 0.3 6.00 2.65 ------- 24000 ------- 0.0350
S6000 10 26 8 0.30 4.55 1.96 ------- 29000 34000 0.019
S6001 12 28 8 0.30 5.10 2.39 ------- 26000 30000 0.021
S6002 15 32 9 0.30 5.60 2.84 ------- 22000 26000 0.030
S6003 17 35 10 0.30 6.80 3.35 ------- 20000 24000 0.039
S6004 20 42 12 0.60 9.40 5.05 ------- 18000 21000 0.069
S6005 25 47 12 0.60 10.10 5.85 ------- 15000 18000 0.080
S6006 30 55 13 1.00 13.20 8.30 ------- 13000 15000 0.116
S6007 35 62 14 1.00 16.00 10.30 ------- 12000 14000 0.155
S6008 40 68 15 1.00 16.80 11.50 ------- 10000 12000 0.190
S6009 45 75 16 1.00 21.00 15.10 ------- 9200 11000 0.237
S6010 50 80 16 1.00 21.80 16.60 ------- 8400 9800 0.261
Page 14
NationalBearings
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Open Type Two Shields(ZZ)
Two Rubber Seals(2RS)
Deep Groove Ball Bearings Stainless Steel
Bearing number
Boundary dimensions (mm) Basic load ratings (kN)
Limiting speeds (mm)weight
(kg)Grease Oil
d D B rmin Cr Cor -2Z -2RS
S6200 10 28 9 0.60 5.10 2.39 ------- 25000 30000 0.032
S6201 12 32 10 0.60 6.10 2.75 ------- 22000 26000 0.037
S6202 15 35 11 0.60 7.75 3.60 ------- 19000 23000 0.045
S6203 17 42 12 1.00 9.60 4.60 ------- 18000 32000 0.066
S6204 20 47 14 1.00 12.80 6.65 ------- 16000 18000 0.060
S6205 25 55 15 1.00 14.00 7.85 ------- 13000 15000 0.128
S6206 30 62 16 1.00 19.50 11.30 ------- 11000 13000 0.199
S6207 35 72 17 1.00 25.70 15.30 ------- 9800 11000 0.288
S6208 40 80 18 1.10 29.10 17.80 ------- 8700 10000 0.366
S6209 45 85 19 1.10 32.50 20.40 ------- 7800 9200 0.398
S6210 50 90 20 1.10 35.00 23.20 ------- 7100 8300 0.454
S6300 10 35 11 0.60 8.20 3.50 ------- 23000 27000 0.053
S6301 12 37 12 1.00 9.70 4.20 ------- 20000 24000 0.060
S6302 15 42 13 1.00 11.40 5.45 ------- 17000 21000 0.0082
S6303 17 47 13 1.00 11.40 5.45 ------- 17000 21000 0.082
S6304 20 52 15 1.10 15.90 7.90 ------- 14000 17000 0.144
S6305 25 62 17 1.10 26.70 15.00 ------- 10000 12000 0.360
S6306 30 72 19 1.10 26.70 15.00 ------- 10000 12000 0.360
S6307 35 80 21 1.50 40.50 24 ------- 7800 9200 0.630
S6308 40 90 23 1.50 40.50 24.00 ------- 7800 9200 0.630
S6309 45 100 27 2.00 62.00 38.50 ------- 6400 7500 0.814
S6310 50 110 27 2.00 62.00 38.50 ------- 6400 7500 1.070
Page 15
NationalBearings
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Open Type Two Shields(ZZ)
Two Rubber Seals(2RS)
Deep Groove Ball Bearings Stainless Steel
Bearing number
Boundary dimensions (mm) Basic load ratings (kN)
Limiting speeds (mm)weight
(kg)Grease Oil
d D B rmin Cr Cor -2Z -2RS
S6800 10 19 5 0.3 1.83 0.93 ------- 32000 38000 0.005
S6801 12 21 5 0.3 1.92 1.04 ------- 29000 35000 0.006
S6802 15 24 5 0.3 2.08 1.26 ------- 26000 3100 0.007
S6803 17 26 5 0.3 2.81 1.72 ------- 24000 28000 0.008
S6804 20 32 7 0.3 4.00 2.47 ------- 21000 25000 0.019
S6805 25 37 7 0.3 4.30 2.95 ------- 18000 21000 0.022
S6806 30 42 7 0.3 4.70 3.65 ------- 15000 18000 0.026
S6807 35 47 7 0.3 4.90 4.05 ------- 13000 16000 0.029
S6808 40 52 7 0.3 5.10 4.40 ------- 21000 14000 0.033
S6809 45 58 7 0.3 6.40 5.65 ------- 11000 12000 0.040
S6810 50 65 7 0.3 6.60 6.10 ------- 9600 11000 0.052
S6900 10 22 6 0.3 2.70 1.27 ------- 30000 36000 0.009
S6901 12 24 6 0.3 2.89 1.46 ------- 27000 32000 0.011
S6902 15 28 7 0.3 4.10 2.06 ------- 24000 28000 0.016
S6903 17 30 7 0.3 4.65 2.58 ------- 22000 26000 0.018
S6904 20 37 9 0.3 6.40 3.70 ------- 19000 23000 0.036
S6905 25 42 9 0.3 7.05 4.55 ------- 16000 19000 0.042
S6906 30 47 9 0.3 7.25 5.00 ------- 14000 17000 0.048
S6907 35 55 10 0.6 11.20 7.45 ------- 12000 15000 0.074
S6908 40 62 12 0.6 14.60 10.20 ------- 11000 13000 0.110
S6909 45 68 12 0.6 15.10 11.20 ------- 9800 12000 0.128
S6910 50 72 12 0.6 15.60 12.20 ------- 8900 11000 0.132
Page 16
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Self Aligning Ball Bearings
With two structures of bore cylindrical or ta-pered and retainers made of steel sheet or syn-thetic resins, the bearings are characteristic of their spherically formed outer ring raceways allowing for misalignment within 3° deflec-tion between inner ring and outer ring, so as to compensate concentricity and deflection errors.
Bearing SeriesBore Diameter
Variant StructuresCylindrical Bore Tapered Bore
1200 1200K 10~120 10~120 2RS +H200
1300 1300K 10~110 10~110 2RS +H300
2200 2200K 10~110 10~110 2RS +H300
2300 2300K 10~110 10~110 2RS +H2300
K
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Bearing numbers Boundary dimensions (mm) Basic load rat-ings (kN)
Limiting speeds (r/min) Weight
(kg)Cylindrical hole Tapered hole d D B rmin Cr Cor Grease Oil
1205ATN 1205AKTN 25 52 15 1 14.3 4 13000 16000 0.139
1206ATN 1206AKTN 30 62 16 1 15.6 4.65 10000 13000 0.219
1207ATN 1207AKTN 35 72 17 1.1 18 6.23 9000 11000 0.305
1208ATN 1208AKTN 40 80 18 1.1 18.5 6.95 8500 10000 0.393
1209ATN 1209AKTN 45 85 19 1.1 21.7 9.56 7500 9000 0.473
1210ATN 1210AKTN 50 90 20 1.1 26.5 9.15 7000 8500 0.525
1211ATN 1211AKTN 55 100 21 1.5 26.8 10.6 6300 7500 0.703
1212ATN 1212AKTN 60 110 22 1.5 30.2 12.2 5600 6700 0.87
1213ATN 1213AKTN 65 120 23 1.5 35.1 14 5300 6300 0.89
1214ATN 1214AKTN 70 125 24 1.5 34.2 13.5 5000 6000 1.21
1215ATN 1215AKTN 75 130 25 1.5 38.7 15.5 4800 5600 1.31
1216ATN 1216AKTN 80 140 26 2 39.8 16.9 4500 5300 1.63
1217ATN 1217AKTN 85 150 28 2 48.8 20.8 4000 4800 2.05
1218ATN 1218AKTN 90 160 30 2 57.2 23.6 3800 4500 2.5
1219ATN 1219AKTN 95 170 32 2.1 63.7 27 3600 4300 3.1
1220ATN 1220AKTN 100 180 34 2.1 68.9 30 3400 4000 3.7
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Bearing numbers Boundary dimensions (mm) Basic load rat-ings (kN)
Limiting speeds (r/min) Weight
(kg)Cylindrical hole Tapered hole d D B rmin Cr Cor Grease Oil
2205ATN 2205AKTN 25 52 18 1 16 4.47 11000 14000 0.158
2206ATN 2206AKTN 30 62 20 1 23.8 6.58 9500 12000 0.251
2207ATN 2207AKTN 35 72 23 1.1 30.5 8.72 8500 10000 0.385
2208ATN 2208AKTN 40 80 23 1.1 31.8 10.1 7500 9000 0.48
2209ATN 2209AKTN 45 85 13 1.1 32 10.6 7000 8500 0.526
2210ATN 2210AKTN 50 90 23 1.1 33.6 11.3 6300 7500 0.559
2211ATN 2211AKTN 55 110 25 1.5 37.3 13.2 6000 7000 0.935
2212ATN 2212AKTN 60 110 28 1.5 48.1 17.1 5300 6300 1.06
2213ATN 2213AKTN 65 120 31 1.5 57.2 20 5000 6000 1.45
2214ATN 2214AKTN 70 125 31 1.5 44.2 17 4800 5600 1.5
2215ATN 2215AKTN 75 130 31 1.5 44.4 18 4500 5300 1.6
2216ATN 2216AKTN 80 140 33 2 65 25.5 4000 4800 2
2217ATN 2217AKTN 85 150 36 2 58.5 23.6 3800 4500 2.5
2218ATN 2218AKTN 90 160 40 2 70.2 28.5 3600 4300 3.4
2219ATN 2219AKTN 95 170 43 2.1 83.2 34.5 3400 4000 4.1
2303ATN 17 47 19 1 14.6 3.55 13000 16000 0.16
2304ATN 2304AKTN 20 52 21 1.1 18.3 4.75 11000 14000 0.208
2305ATN 2305AKTN 25 62 24 1.1 24.6 6.62 9500 12000 0.336
2306ATN 2306AKTN 30 72 27 1.1 31.7 8.82 8500 1000 0.5
2307ATN 2307AKTN 35 80 31 1.5 39.9 11.3 7000 8500 0.677
2308ATN 2308AKTN 40 90 33 1.5 54.2 15.9 6300 7500 0.897
2309ATN 2309AKTN 45 100 36 1.5 63.7 19.3 5600 6700 1.25
2310ATN 2310AKTN 50 110 40 2 63.7 20 5300 6300 1.65
Page 19
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Angular Contact Ball Bearings
Angular contact ball bearings are able to support radial load and axial load. As sin-gle row angular contact ball bearings can only support axiafload in single direc-tion, matched bearing mounting is often adopted to them. As matched pairs of bear-ings, preload for them is more convenient.
Retainers are made of brass, synthetic res-ins or others subject to individual bear-ing features and application conditions.
Matching Arrangement
Back to Back(DB)
Face to Face(DF) Tandem(DT)
Load Direction ← ↑ → ← ↑ → ← ↑
Rigidity Great Medium Small
Series
Bore Diam-eterContact Angle
15° 25° 40°
7000C 7000AC 10~600
7200C 7200AC 7200B 10~600
7300C 7300AC 7300B 10~600
Single Row/Duplex Angular Contact Ball Bearings
Can be matched in any number and arrangement
DB
DF DT
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Double row angular contact ball bearings are a form of back-to-back pairs of single row angu-lar contact ball bearings, which support axial load in both directions as well as support radial load.
With two piece in-ner ring, this type bear-ing can take axial load in both directions.
Bearing Series(Contact Angle 30°) Bore Diameter(mm) Variant Structure
3200A 10~600 2RS, ZZ, N
3300A 10~600 2RS, ZZ, N
3200 10~600 2RS, ZZ, N
3300 10~600 2RS, ZZ, N
Bearing Series(Contact Angle 35°) Bore Diameter(mm)
QJ200 10~600
QJ300 10~600
QJF100 100~600
QJF200 100~600
Double Row Angular Contact Ball Bearings
ZZ
2RS N
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Angular Contact Ball Bearings - Single Row Type
Bearing numbers Boundary dimensions (mm)Basic load
ratings (KN)
Limiting speeds (r/min)
Loadcen-ter
(mm)
Basic load ratings
(duplex)(KN)
Limiting speeds(duplex) (r/min)
Weight(kg)
single DB DF DT d D B rmin rimin Cr Cor Grease Oil a Cr Cor Grease Oil (Single)
7206AC /DB /DF /DT 30 62 16 1 0.6 22.1 14.1 17000 24000 19 35.9 28.2 13000 19000 0.196
7306AC /DB /DF /DT 30 72 19 1.1 0.6 30.9 19.4 17000 23000 21 50.2 38.8 13000 18000 0.349
7207C /DB /DF /DT 35 72 17 1.1 0.6 30.3 20.1 17000 24000 16 49.2 40.2 12800 18000 0.278
7308AC /DB /DF /DT 40 90 23 1.5 0.6 50.3 34 13500 18000 27 81.7 68 10000 14000 0.641
7209C /DB /DF /DT 45 85 19 1.1 0 36.3 25.8 15000 20000 18 59 51.6 11500 15500 0.411
7309C /DB /DF /DT 45 100 25 1.5 0.6 62.8 43.3 13000 17000 22 102 86.6 10000 13400 0.857
7309AC /DB /DF /DT 45 100 25 1.5 0.6 60.3 42.1 12000 16000 29 98 84.2 9400 12600 0.857
7211C /DB /DF /DT 55 100 21 1.5 0.6 52.9 39.9 11000 16000 21 85.9 79.8 8700 12600 0.607
7312C /DB /DF /DT 60 130 31 2.1 1.1 105 76.3 9700 13000 28 171 153 7600 1000 1.75
7313C /DB /DF /DT 65 140 33 2.1 1.1 119 87.9 9000 12000 30 193 176 7100 9400 2.16
7214C /DB /DF /DT 70 125 24 1.5 0.6 66.6 51.7 9000 13000 25 108 109 7100 10000 1.1
7316C /DB /DF /DT 80 170 39 2.1 1.1 157 128 7500 10000 36 255 256 5800 7700 3.74
7217C /DB /DF /DT 85 150 28 2 1 92.6 78.8 8000 11000 30 150 158 6300 8600 1.82
7317C /DB /DF /DT 85 180 41 3 1.1 170 142 7000 9400 38 276 284 5400 7400 4.4
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Angular Contact Ball Bearings - Double Row Type
Two Shields(ZZ)
Two Rubber Seals(2RS)
Bearing Numbers
VariantStruc-ture
Boundary dimensions (mm) Basic load rat-ings (KN)
Limiting speeds (r/min)
Loadcenter(mm)
Weight(kg)
d D B rmin Cr Cor Grease Oil a
3200 2Z/2RS 10 30 14.3 0.6 7.59 4.4 16000 22000 15 0.051
3201 2Z/2RS 12 32 15.9 0.6 10.3 5.63 15000 20000 17 0.061
3202 2Z/2RS 15 35 15.9 0.6 11.3 6.85 12000 17000 18 0.066
3203 2Z/2RS 17 40 17.5 0.6 14.2 8.8 10000 15000 20 0.097
3204 2Z/2RS 20 47 20.6 1 19.1 12.2 9000 13000 24 0.152
3205 2Z/2RS 25 52 20.6 1 20.1 14.3 8000 11000 27 0.197
3206 2Z/2RS 30 62 23.8 1 28.6 20.5 7000 9500 31 0.292
3207 2Z/2RS 35 72 27 1.1 35.4 26.2 6000 8000 26 0.448
3208 2Z/2RS 40 90 20.2 1.1 40.3 32 5600 7000 41 0.612
3209 2Z/2RS 45 85 30.2 1.1 42.8 34.7 5000 6700 43 0.655
3210 2Z/2RS 50 90 30.2 1.1 45.1 38.8 4800 6300 45 0.706
3211 2Z/2RS 55 100 33.3 1.5 53.8 47.3 4300 5600 50 0.981
3212 2Z/2RS 60 110 36.5 1.5 60.1 53.6 3800 5000 55 1.34
3302 2Z/2RS 15 42 19 1 14.2 8.8 10000 15000 22 0.131
3303 2Z/2RS 17 47 22.2 1 20.5 12.1 9500 14000 24 0.177
3304 2Z/2RS 20 52 22.2 1.1 22.6 14.7 8500 12000 26 0.217
3305 2Z/2RS 25 62 25.4 1.1 28.9 19.4 7500 10000 31 0.349
3306 2Z/2RS 30 72 30.2 1.1 39.5 27.5 6300 8500 36 0.556
3307 2Z/2RS 35 80 34.9 1.5 49.5 35.3 5600 7500 42 0.748
3308 2Z/2RS 40 90 36.5 1.5 60.5 41.2 5000 6700 46 1.01
3309 2Z/2RS 45 100 39.7 1.5 72.4 54 4500 6000 50 1.36
3310 2Z/2RS 50 110 44.4 2 85.3 64.8 4000 5300 55 1.81
3311 2Z/2RS 55 120 49.2 2 106 82.3 3800 5000 61 2.31
3313 2Z/2RS 65 140 58.7 2.1 138 110 3200 4300 71 3.71
Page 23
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Angular Contact Ball Bearings -Four-point Contact Type
QJ QJF
BearingNumbers
Boundary Dimensions (mm) Basic load ratings (KN)
limiting Speeds (r/min)
loadcenter(mm)
Weight(kg)
d D B rmin Cr Cor Grease Oil a
QJ203 17 40 12 0.6 15.9 10.6 14000 19000 20 0.082
QJ303 17 47 14 1 23.4 15 12000 17000 22 0.14
QJ304 20 52 15 1.1 29.6 20 10000 15000 25 0.18
QJ205 25 52 15 1 25.1 20 9500 14000 27 0.16
QJ305 25 62 17 1.1 41.5 24.5 9500 14000 31 0.276
QJ206 30 62 16 1 35.1 28.5 8500 12000 32 0.24
QJ306 30 72 19 1.1 49.4 39 7500 10000 36 0.42
QJ207 35 72 17 1.1 46.2 39.01 7500 10000 37 0.35
QJ307 35 80 21 1.5 59.2 46.5 7000 9500 40 0.57
QJ307N2Q1 35 80 21 1.5 59.2 46.5 7100 9500 40.3 0.69
QJ208 40 80 18 1.1 52.7 45 6700 9000 42 0.45
QJ308 40 90 23 1.5 71.5 58.5 6300 8500 46 0.78
QJ209 45 85 19 1.1 58.5 51 6300 8500 46 0.52
QJ309 45 100 25 1.5 93.6 76.5 5600 7500 51 1.05
QJ210 50 90 20 1.1 61.8 56 5600 7500 49 0.59
QJ310 50 110 27 2 111 91.5 5000 6700 56 1.35
QJ211 55 100 21 1.5 79.3 76.5 5300 7000 54 0.77
QJ311 55 120 29 2 127 108 4500 6000 61 1.75
QJ212 60 110 22 1.5 92.3 86.5 4800 6300 60 0.99
QJ312 60 130 31 2.1 146 125 4300 5600 67 2.15
QJ213 65 120 23 1.5 104 104 4300 5600 65 1.2
Page 24
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This type of bearings is separable, which can only carry axial load. The single direction bearings of them can only carry axial load in one direction, while the double can carry alternating axial load in either di-rection. Before using they have to be preloaded. The thrust ball bearings are used in lathe centers, auto-mobile clutches, reducers and so on. The double di-rection angular contact thrust ball bearings are suit-able for machine tool spindles, while the single are used to support ball screws.
Thrust Ball Bearings
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Thurst Ball Bearings -Single Direction Type
Bearing numbers
Boundary dimensions (mm) Basic load rat-ings (kN)
Limiting speeds (r/min) Weight
(kg)d d1 D D1 H C H1 rmin S R Cr Cor Grease Oil
51100 10 11 24 24 9 ---- ---- 0.3 ---- ---- 9.32 8.11 7000 9500 0.0188
51101 12 13 26 26 9 ---- ---- 0.3 ---- ---- 9.67 9.49 6700 9000 0.021
51102 15 16 28 28 9 ---- ---- 0.3 ---- ---- 10.5 12 6300 8500 0.0219
51103 17 18 30 30 9 ---- ---- 0.3 ---- ---- 10.8 13.4 6300 8500 0.0246
51104 20 21 35 35 10 ---- ---- 0.3 ---- ---- 15 19.7 5600 7500 0.0371
51105 25 26 42 42 11 ---- ---- 0.6 ---- ---- 15.4 23.9 4800 6300 0.0554
51106 30 32 47 47 11 ---- ---- 0.6 ---- ---- 16.6 29.4 4500 6000 0.0692
51107 35 37 52 52 12 ---- ---- 0.6 ---- ---- 19.1 35.9 4300 5600 0.0806
51108 40 42 60 60 13 ---- ---- 0.6 ---- ---- 26.9 51.2 3800 5000 0.116
51109 45 47 65 65 14 ---- ---- 0.6 ---- ---- 27.9 57.5 3400 4500 0.14
51110 50 52 70 70 14 ---- ---- 0.6 ---- ---- 28 61 3200 4300 0.148
51111 55 57 78 78 16 ---- ---- 0.6 ---- ---- 34.7 78.7 2800 3800 0.223
51112 60 62 85 85 17 ---- ---- 1 ---- ---- 40.2 91 2600 3600 0.278
51113 65 67 90 90 18 ---- ---- 1 ---- ---- 40.2 91 2400 3400 0.314
51114 70 72 95 95 18 ---- ---- 1 ---- ---- 47.8 114 2400 3400 0.34
51115 75 77 100 100 19 ---- ---- 1 ---- ---- 48.1 120 2200 3200 0.382
51116 80 82 105 105 19 ---- ---- 1 ---- ---- 50 130 2000 3000 0.406
51117 85 87 110 110 19 ---- ---- 1 ---- ---- 49.3 131 2000 3000 0.424
51118 90 92 120 120 22 ---- ---- 1 ---- ---- 66.5 177 1800 2600 0.652
51120 100 102 135 135 25 ---- ---- 1 ---- ---- 87 251 1600 2200 0.958
51122 110 112 145 145 25 ---- ---- 1 ---- ---- 87 251 1600 2200 1.05
51124 120 122 155 155 25 ---- ---- 1 ---- ---- 88.9 271 1600 2200 1.12
51126 130 132 170 170 30 ---- ---- 1 ---- ---- 111 341 1400 1900 1.71
51128 140 142 180 178 31 ---- ---- 1 ---- ---- 113 366 1300 1800 1.86
Page 26
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Thurst Ball Bearings -Single Direction Type
Bearing numbers
Boundary dimensions (mm) Basic load rat-ings (kN)
Limiting speeds (r/min) Weight
(kg)d d1 D D1 H C H1 rmin S R Cr Cor Grease Oil
51200 10 12 26 26 11 ---- 11.6 0.6 8.5 22 12.7 10.4 6000 8000 0.0282
51201 12 14 28 28 11 3.5 11.4 0.6 11.5 25 13.2 12.3 6000 8000 0.0319
51202 15 17 32 32 12 4 13.3 0.6 12 28 13.4 14.5 5300 7000 0.043
51203 17 19 35 35 12 4 13.2 0.6 16 32 17.2 18.8 5000 6700 0.0503
51204 20 22 40 40 14 5 14.7 0.6 18 36 21.1 23.9 4500 6000 0.0746
51205 25 27 47 47 15 5.5 16.7 0.6 19 40 27.7 36.3 4000 5300 0.107
51206 30 32 52 52 16 5.5 17.8 0.6 22 45 29.3 43.8 3600 4800 0.134
51207 35 37 62 62 18 7 19.9 1 24 50 39.1 58.6 3000 4000 0.209
51208 40 42 68 68 19 7 20.3 1 28.5 56 47 74.1 2800 3800 0.262
51209 45 47 73 73 20 7.5 21.3 1 26 56 47.5 81.5 2600 3600 0.304
51210 50 52 78 78 22 7.5 23.5 1 32.5 64 54.4 94.4 2400 3400 0.365
51211 55 57 90 90 25 9 27.3 1 35 72 69.4 123 1900 2800 0.592
51212 60 62 95 95 26 9 28 1 32.5 72 70.6 133 1900 2800 0.663
51213 65 67 100 100 27 9 27.7 1 40 80 72 144 1800 2600 0.741
51214 70 72 105 105 27 9 28.8 1 38 870 76 162 1800 2600 0.792
51215 75 77 110 110 27 9.5 28.3 1 49 90 77.1 172 1700 2400 0.817
51216 80 82 115 155 28 10 29.5 1 46 90 86.4 793 1700 2400 0.908
51217 85 88 125 125 31 11 33.1 1 52 100 97.9 229 1600 2200 1.25
51218 90 93 135 135 35 13.5 38.5 1.1 45 100 125 277 1500 2000 1.68
51220 100 103 150 150 38 14 40.9 1.1 52 112 155 341 1300 1800 2.23
51222 110 113 160 160 38 14 40.2 1.1 65 125 162 384 1200 1700 2.42
51224 120 123 170 170 39 15 40.8 1.1 61 125 163 409 1100 1600 2.67
51226 130 133 190 187 45 17 47.9 1.5 67 140 186 540 950 1400 4
51228 140 143 200 197 46 17 48.6 1.5 87 160 190 570 950 1400 4.35
Page 27
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Thurst Ball Bearings -Single Direction Type
Bearing numbers
Boundary dimensions (mm) Basic load rat-ings (kN)
Limiting speeds (r/min) Weight
(kg)d d1 D D1 H C H1 rmin S R Cr Cor Grease Oil
51304 20 22 47 47 18 ---- ---- 1 ---- ---- 34.3 36.3 ---- ---- 0.149
51305 25 27 52 52 18 ---- 19.8 1 21 45 35.7 42.1 3400 4500 0.166
51306 30 32 60 60 21 7 22.6 1 22 50 47.1 57.2 2800 3800 0.257
51307 35 37 68 68 24 7.5 25.6 1 24 56 55.4 73.9 2400 3400 0.371
51308 40 42 78 78 26 8.5 28.5 1 28 64 68.9 95.8 2000 3000 0.536
51309 45 47 85 85 28 10 30.1 1 25 64 79.5 118 1900 2800 0.68
51310 50 52 95 95 31 11 34.3 1.1 28 72 96.2 146 1800 2600 0.936
51311 55 57 105 105 35 11.7 39.3 1.1 30.3 80 126 189 1600 2200 1.31
51312 60 62 110 110 35 11.5 38.3 1.1 41 90 129 209 1600 2200 1.38
51313 65 67 115 115 36 12.5 39.4 1.1 38.5 90 138 229 1500 2000 1.51
51406 30 32 70 70 28 ---- 30.1 1 20 56 72.2 81 2000 3000 0.523
51414M 70 73 150 150 60 19.5 63.6 2 34 112 234 500 950 1400 5
The information in this catalogue is for reference only. National Bearings doesn’t guarantee the accuracy and reserve the right to change without prior notice.