Product Description
Angular contact ball bearings have inner and outer ring raceways that are displaced relative to each other in the direction of the bearing axis. This means that these bearings are designed to accommodate combined loads, i.e. simultaneously acting radial and axial loads.
The axial load carrying capacity of angular contact ball bearings increases as the contact angle increases. The contact angle is defined as the angle between the line joining the points of contact of the ball and the raceways in the radial plane, along which the combined load is transmitted from 1 raceway to another, and a line perpendicular to the bearing axis.
   The most commonly used designs are:
- single row angular contact ball bearings.
- double row angular contact ball bearings.
- four-point contact ball bearings.
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Part No. | d/mm | D/mm | B/mm | Load Rating(KN) | Limited  Speed(r/min) | Load Rating(KN) | Limited  Speed(r/min) | ||||
Cr/KN | Cor/KN | Grease | Oil | Cr/KN | Cor/KN | Grease | Oil | ||||
718 serie |  |  |  | α=15°(C) | α=25°(AC) | ||||||
71800 | 10 | 19 | 5 | 1.8 | 1.1 | 75000 | 120000 | 1.7 | 1.1 | 70000 | 110000 |
71801 | 12 | 21 | 5 | 2 | 1.4 | 70000 | 110000 | 1.9 | 1.3 | 63000 | 95000 |
71802 | 15 | 24 | 5 | 2.2 | 1.8 | 60000 | 90000 | 2.1 | 1.7 | 53000 | 80000 |
71803 | 17 | 26 | 5 | 2.3 | 1.9 | 53000 | 80000 | 2.1 | 1.8 | 50000 | 75000 |
71804 | 20 | 32 | 7 | 3.9 | 3.4 | 45000 | 67000 | 3.7 | 3.2 | 40000 | 60000 |
71805 | 25 | 37 | 7 | 4.2 | 4.1 | 38000 | 56000 | 3.9 | 3.9 | 34000 | 50000 |
71806 | 30 | 42 | 7 | 4.4 | 4.8 | 32000 | 48000 | 4.1 | 4.5 | 28000 | 43000 |
71807 | 35 | 47 | 7 | 4.6 | 5.5 | 26000 | 40000 | 4.3 | 5.2 | 24000 | 38000 |
71815 | 75 | 95 | 10 | 14.2 | 21.7 | 12000 | 19000 | 13.3 | 20.5 | 11000 | 18000 |
71816 | 80 | 100 | 10 | 14.5 | 23.1 | 11000 | 18000 | 13.6 | 21.8 | 9500 | 16000 |
71817 | 85 | 110 | 13 | 21.5 | 32.2 | 10000 | 17000 | 20.2 | 30.5 | 9000 | 15000 |
71818 | 90 | 115 | 13 | 21.7 | 33.5 | 9500 | 16000 | 20.4 | 31.6 | 8500 | 14000 |
71819 | 95 | 120 | 13 | 21.9 | 34.7 | 9000 | 15000 | 20.6 | 32.8 | 8500 | 14000 |
71820 | 100 | 125 | 13 | 22.5 | 37 | 8500 | 14000 | 21.2 | 34.9 | 8000 | 13000 |
71821 | 105 | 130 | 13 | 22.7 | 38.3 | 8500 | 14000 | 21.3 | 36.1 | 8000 | 13000 |
71822 | 110 | 140 | 16 | 31.8 | 51.6 | 8000 | 13000 | 29.9 | 48.7 | 7500 | 12000 |
71824 | 120 | 150 | 16 | 33.1 | 56.9 | 7000 | 11000 | 31.1 | 53.7 | 6700 | 10000 |
71826 | 130 | 165 | 18 | 38.7 | 67.6 | 6700 | 10000 | 36.3 | 63.8 | 6000 | 9000 |
71828 | 140 | 175 | 18 | 44.8 | 79.2 | 6000 | 9000 | 42 | 74.7 | 5600 | 8500 |
71830 | 150 | 190 | 20 | 51.2 | 92 | 5600 | 8500 | 48 | 86.8 | 5000 | 7500 |
71832 | 160 | 200 | 20 | 52.4 | 97.7 | 5000 | 7500 | 49.2 | 92.2 | 4800 | 7000 |
71834 | 170 | 215 | 22 | 66.5 | 123.4 | 4800 | 7000 | 62.4 | 116.5 | 4300 | 6300 |
71836 | 180 | 225 | 22 | 83.8 | 151.6 | 4800 | 7000 | 78.6 | 143 | 4300 | 6300 |
71838 | 190 | 240 | 24 | 100 | 179 | 4500 | 6700 | 94.4 | 169.2 | 4000 | 6000 |
71840 | 200 | 250 | 24 | 102.5 | 189.3 | 4300 | 6300 | 96.2 | 178.6 | 3800 | 5600 |
71844 | 220 | 270 | 24 | 106.4 | 209.3 | 3800 | 5600 | 99.8 | 197.4 | 3400 | 5000 |
71848 | 240 | 300 | 28 | 145 | 277 | 3400 | 5000 | 136 | 261 | 3000 | 4500 |
71852 | 260 | 320 | 28 | 148.8 | 299.3 | 3100 | 4600 | 139.6 | 282.3 | 2700 | 4100 |
71856 | 280 | 350 | 33 | 182 | 363.8 | 2800 | 4100 | 170.8 | 343.3 | 2400 | 3700 |
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Part No. | d/mm | D/mm | B/mm | Load Rating(KN) | Limited  Speed(r/min) | Load Rating(KN) | Limited  Speed(r/min) | ||||
Cr/KN | Cor/KN | Grease | Oil | Cr/KN | Cor/KN | Grease | Oil | ||||
719 serie |  |  |  | α=15°(C) | α=25°(AC) | ||||||
71907 | 35 | 55 | 10 | 11 | 10.9 | 26000 | 40000 | 10.4 | 10.3 | 20000 | 34000 |
H71907 | 35 | 55 | 10 | 7.7 | 5.4 | 36000 | 53000 | 7.4 | 5.1 | 30000 | 45000 |
H71907/HQ1 | 35 | 55 | 10 | 7.7 | 5.4 | 40000 | 60000 | 7.4 | 5.1 | 34000 | 50000 |
71908 | 40 | 62 | 12 | 14 | 14.2 | 20000 | 34000 | 13.3 | 13.5 | 18000 | 30000 |
H71908 | 40 | 62 | 12 | 9.8 | 7 | 30000 | 45000 | 9.3 | 6.6 | 26000 | 40000 |
H71908/HQ1 | 40 | 62 | 12 | 9.8 | 7 | 34000 | 50000 | 9.3 | 6.6 | 28000 | 43000 |
71909 | 45 | 68 | 12 | 14.7 | 16.1 | 18000 | 30000 | 13.9 | 15.2 | 17000 | 28000 |
H71909 | 45 | 68 | 12 | 10.3 | 7.7 | 26000 | 40000 | 9.7 | 7.3 | 22000 | 36000 |
H71909/HQ1 | 45 | 68 | 12 | 10.3 | 7.7 | 28000 | 43000 | 9.7 | 7.3 | 26000 | 40000 |
71910 | 50 | 72 | 12 | 19 | 21.2 | 17000 | 28000 | 17.9 | 20.1 | 15000 | 24000 |
H71910 | Â | 72 | 12 | 13.2 | 10.2 | 22000 | 36000 | 12.5 | 9.5 | 19000 | 32000 |
H71910/HQ1 | 50 | 72 | 12 | 13.2 | 10.2 | 26000 | 40000 | 12.5 | 9.5 | 22000 | 36000 |
71911 | 55 | 80 | 13 | 23.7 | 27.4 | 15000 | 24000 | 22.4 | 26 | 14000 | 22000 |
H71911 | 55 | 80 | 13 | 16.2 | 12.5 | 19000 | 32000 | 15.2 | 11.8 | 16000 | 26000 |
H71911/HQ1 | 55 | 80 | 13 | 16.2 | 12.5 | 22000 | 36000 | 15.2 | 11.8 | 22000 | 36000 |
71912 | 60 | 85 | 13 | 24.8 | 30.3 | 14000 | 22000 | 23.3 | 28.7 | 13000 | 20000 |
H71912 | 60 | 85 | 13 | 16.5 | 13.8 | 18000 | 30000 | 15.8 | 13.2 | 15000 | 24000 |
H71912/HQ1 | 60 | 85 | 13 | 16.5 | 13.8 | 19000 | 32000 | 15.8 | 13.2 | 20000 | 34000 |
71913 | 65 | 90 | 13 | 25.1 | 31.9 | 13000 | 20000 | 23.6 | 30.2 | 12000 | 19000 |
H71913 | 65 | 90 | 13 | 16.8 | 14.5 | 17000 | 28000 | 16.2 | 13.8 | 15000 | 24000 |
H71913/HQ1 | 65 | 90 | 13 | 16.8 | 14.5 | 19000 | 32000 | 16.2 | 13.8 | 17000 | 28000 |
71914 | 70 | 100 | 16 | 34.5 | 43.4 | 12000 | 19000 | 32.6 | 41.2 | 11000 | 18000 |
H71914 | 70 | 100 | 16 | 20.8 | 17.8 | 16000 | 26000 | 19.8 | 16.8 | 13000 | 20000 |
H71914/HQ1 | 70 | 100 | 16 | 20.8 | 17.8 | 19000 | 32000 | 19.8 | 16.8 | 17000 | 28000 |
71915 | 75 | 105 | 16 | 25 | 45.6 | 11000 | 18000 | 33 | 43.2 | 95000 | 16000 |
H71915 | 75 | 105 | 16 | 21.8 | 19.2 | 15000 | 24000 | 20.5 | 18.2 | 13000 | 20000 |
H71915/HQ1 | 75 | 105 | 16 | 21.8 | 19.2 | 17000 | 28000 | 20.5 | 18.2 | 15000 | 24000 |
71916 | 80 | 110 | 16 | 35.5 | 47.8 | 10000 | 17000 | 33.5 | 45.3 | 9000 | 15000 |
H71916 | 80 | 110 | 16 | 22.5 | 20.8 | 14000 | 22000 | 21.2 | 19.5 | 12000 | 19000 |
H71916/HQ1 | 80 | 110 | 16 | 22.5 | 20.8 | 16000 | 26000 | 21.2 | 19.5 | 14000 | 24000 |
71917 | Â | 120 | 18 | 46.5 | 61.9 | 9500 | 16000 | 43.8 | 58.6 | 8500 | 14000 |
H71917 | 85 | 120 | 18 | 26.2 | 24.2 | 13000 | 20000 | 24.8 | 22.8 | 11000 | 18000 |
H71917/HQ1 | 85 | 120 | 18 | 26.2 | 24.2 | 15000 | 24000 | 24.8 | 22.8 | 13000 | 20000 |
71918 | 90 | 125 | 18 | 47.2 | 64.8 | 9000 | 15000 | 44.5 | 61.4 | 8000 | 13000 |
H71918 | 90 | 125 | 18 | 27.2 | 26.2 | 13000 | 20000 | 25.5 | 24.5 | 11000 | 18000 |
H71918/HQ1 | 90 | 125 | 18 | 27.2 | 26.2 | 15000 | 24000 | 25.5 | 24.5 | 13000 | 20000 |
71919 | 95 | 130 | 18 | 47.9 | 67.8 | 9000 | 15000 | 45.2 | 64.1 | 8000 | 13000 |
H71919 | 95 | 130 | 18 | 27.2 | 26.8 | 12000 | 19000 | 25.8 | 25.5 | 11000 | 18000 |
H71919/HQ1 | 95 | 130 | 18 | 27.2 | 26.8 | 14000 | 22000 | 25.8 | 25.5 | 13000 | 20000 |
71920 | 100 | 140 | 20 | 60.4 | 84.4 | 8500 | 14000 | 56.9 | 79.9 | 8000 | 13000 |
H71920 | 100 | 140 | 20 | 40.2 | 37.5 | 11000 | 18000 | 37.8 | 35.5 | 9000 | 15000 |
H71920/HQ1 | 100 | 140 | 20 | 40.2 | 37.5 | 13000 | 20000 | 37.8 | 35.5 | 11000 | 18000 |
71921 | 105 | 145 | 20 | 61.4 | 88.2 | 8000 | 13000 | 57.8 | 83.5 | 7500 | 12000 |
H71921 | 105 | 145 | 20 | 40.8 | 39.2 | 10000 | 17000 | 38.5 | 36.8 | 8500 | 14000 |
H71921/HQ1 | 105 | 145 | 20 | 40.8 | 39.2 | 12000 | 19000 | 38.5 | 36.8 | 10000 | 17000 |
71922 | 110 | 150 | 20 | 62.3 | 91.9 | 7500 | 12000 | 58.7 | 87 | 7000 | 11000 |
H71922 | 110 | 150 | 20 | 41.2 | 40.5 | 9000 | 15000 | 39.2 | 38.2 | 7500 | 12000 |
H71922/HQ1 | 110 | 150 | 20 | 41.2 | 40.5 | 11000 | 18000 | 39.2 | 38.2 | 9500 | 16000 |
71924 | 120 | 165 | 22 | 73.7 | 107.6 | 7000 | 11000 | 69.5 | 101.9 | 6700 | 10000 |
H71924 | 120 | 165 | 22 | 43.2 | 44.8 | 8500 | 14000 | 40.5 | 42.5 | 7500 | 12000 |
H71924/HQ1 | 120 | 165 | 22 | 43.2 | 44.8 | 10000 | 17000 | 40.8 | 42.5 | 9000 | 15000 |
71926 | 130 | 180 | 24 | 76.3 | 117.1 | 6700 | 10000 | 71.9 | 110.9 | 6000 | 9000 |
H71926 | 130 | 180 | 24 | 53.2 | 56.5 | 8000 | 13000 | 50.2 | 53.5 | 7500 | 12000 |
H71926/HQ1 | 130 | 180 | 24 | 53.2 | 56.5 | 9000 | 15000 | 50.2 | 53.5 | 8000 | 14000 |
71928 | 140 | 190 | 24 | 78.9 | 126.4 | 6000 | 9000 | 74.4 | 119.7 | 5600 | 8500 |
H71928 | 140 | 190 | 24 | 53.8 | 59.2 | 7000 | 11000 | 50.8 | 55.8 | 6700 | 10000 |
H71928/HQ1 | 140 | 190 | 24 | 53.8 | 59.2 | 8000 | 13000 | 50.8 | 55.8 | 7500 | 12000 |
71930 | 150 | 210 | 28 | 118.2 | 175.1 | 5600 | 8500 | 111.4 | 165.8 | 5000 | 7500 |
H71930 | 150 | 210 | 28 | 65.2 | 72.8 | 6700 | 10000 | 61.5 | 68.8 | 6000 | 9000 |
H71930/HQ1 | 150 | 210 | 28 | 65.2 | 72.8 | 7500 | 12000 | 61.5 | 68.8 | 7000 | 11000 |
71932 | 160 | 220 | 28 | 123.6 | 191.2 | 5000 | 7500 | 116.5 | 181.1 | 4800 | 7000 |
H71932 | 160 | 220 | 28 | 66.2 | 75.8 | 6000 | 9000 | 62.5 | 71.5 | 5600 | 8500 |
H71932/HQ1 | Â | 220 | 28 | 66.2 | 75.8 | 7000 | 11000 | 62.5 | 71.5 | 6700 | 10000 |
71934 | 170 | 230 | 28 | 125.7 | 200 | 4800 | 7000 | 118.5 | 189.4 | 4300 | 6300 |
H71934 | 170 | 230 | 28 | 66.8 | 78.8 | 5600 | 8500 | 63.2 | 74.5 | 5000 | 7500 |
H71934/HQ1 | 170 | 230 | 28 | 66.8 | 78.8 | 6700 | 10000 | 63.2 | 74.2 | 6000 | 9000 |
71936 | 180 | 250 | 33 | 159.7 | 249.1 | 4500 | 6700 | 150.6 | 235.9 | 4000 | 6000 |
H71936 | 180 | 250 | 33 | 79.5 | 95.2 | 5000 | 7500 | 75.2 | 89.8 | 4800 | 7000 |
H71936/HQ1 | 180 | 250 | 33 | 79.5 | 95.2 | 6000 | 9000 | 75.2 | 89.8 | 5600 | 8500 |
71938 | 190 | 260 | 33 | 162.8 | 260.8 | 4300 | 6300 | 153.5 | 247 | 3800 | 5600 |
H71938 | 190 | 260 | 33 | 80.5 | 98.5 | 4800 | 7000 | 76.2 | 93.2 | 4300 | 6300 |
H71938/HQ1 | 190 | 260 | 33 | 80.5 | 98.5 | 5600 | 8500 | 76.2 | 93.2 | 5000 | 7500 |
71940 | 200 | 280 | 38 | 198.4 | 311.4 | 3800 | 5600 | 187.1 | 294.9 | 3600 | 5300 |
H71940 | 200 | 280 | 38 | 82.8 | 105.5 | 4500 | 6700 | 78.2 | 99.5 | 4000 | 6000 |
H71940/HQ1 | 200 | 280 | 38 | 82.8 | 105.5 | 5000 | 7500 | 78.2 | 99.5 | 4500 | 6700 |
71944 | 220 | 300 | 38 | 206.6 | 341.1 | 3600 | 5300 | 194.8 | 323 | 3200 | 4800 |
H71944 | 220 | 300 | 38 | 96.9 | 125.4 | 4300 | 6300 | 91.5 | 118.4 | 3800 | 5600 |
H71944/HQ1 | 220 | 300 | 38 | 96.9 | 125.4 | 5000 | 7500 | 91.5 | 118.4 | 4300 | 6300 |
71948 | 240 | 320 | 38 | 219.2 | 384.2 | 3200 | 4800 | 206.7 | 363.8 | 3000 | 4500 |
H71948 | 240 | 320 | 38 | 153 | 216 | 3900 | 5800 | 146 | 200 | 3500 | 5200 |
H71948/HQ1 | 240 | 320 | 38 | 153 | 216 | 4500 | 6500 | 146 | 200 | 4000 | 5800 |
71952 | 260 | 360 | 46 | 284.6 | 528.8 | 3000 | 4500 | 268.3 | 500.8 | 2600 | 4000 |
71956 | 280 | 380 | 46 | 288.7 | 554.6 | 2600 | 4000 | 272.2 | 525.5 | 2200 | 3600 |
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Mod. No. | d | D | Height | Cr | Cor | Grease | Oil | Weight |
(mm) | (mm) | (mm) | (kN) | (kN) | (r/min) | (r/min) | (kg) | Â |
7571C | 50 | 80 | 16 | 26 | 21.9 | 13000 | 17000 | 0.29 |
7571AC | 50 | 80 | 16 | 23.6 | 20.1 | 9200 | 11000 | 0.29 |
7210C | 50 | 90 | 20 | 42.8 | 31.8 | 12000 | 16000 | 0.485 |
7210AC | 50 | 90 | 20 | 39.4 | 41.3 | 8500 | 11000 | 0.485 |
7210B | 50 | 90 | 20 | 37.535.7 | 26.7 | 6400 | 8500 | 0.485 |
7310B | 50 | 110 | 27 | 64.4 | 44.3 | 5500 | 7300 | 1.14 |
7410B | 50 | 130 | 31 | 90.2 | 60.4 | 4400 | 6000 | 1.92 |
7011C | 55 | 90 | 18 | 34.1 | 28.6 | 11000 | 15000 | 0.42 |
7011AC | 55 | 90 | 18 | 31.1 | 26.3 | 8300 | 10000 | 0.42 |
7211C | 55 | 100 | 21 | 52.9 | 40.2 | 11000 | 14000 | 0.635 |
7211AC | 55 | 100 | 21 | 48.7 | 37.1 | 7600 | 9500 | 0.635 |
7211B | 55 | 100 | 21 | 44.1 | 33.8 | 5700 | 7600 | 0.635 |
7311B | 55 | 120 | 29 | 74.3 | 52 | 5000 | 6700 | 1.45 |
7012C | 60 | 95 | 18 | 35 | 30.6 | 11000 | 14000 | 0.45 |
7012AC | 60 | 95 | 18 | 31.9 | 28.1 | 7700 | 9700 | 0.45 |
7212C | 60 | 110 | 22 | 64 | 49.5 | 9500 | 13000 | 0.82 |
7212AC | 60 | 110 | 22 | 58.9 | 45.7 | 6900 | 8600 | 0.82 |
7212B | 60 | 110 | 22 | 53.4 | 41.6 | 5100 | 6900 | 0.82 |
7312B | 60 | 130 | 31 | 84.9 | 60.3 | 4600 | 6200 | 1.81 |
7412B | 60 | 150 | 35 | 119 | 86.7 | 3700 | 5100 | 2.85 |
7013C | 65 | 100 | 18 | 37.1 | 34.3 | 10000 | 13000 | 0.47 |
7013AC | 65 | 100 | 18 | 33.7 | 31.4 | 7200 | 9000 | 0.47 |
7213C | 65 | 120 | 23 | 73.1 | 58.7 | 8900 | 12000 | 1.02 |
7213AC | 65 | 120 | 23 | 67.3 | 54.2 | 6400 | 8000 | 1.02 |
7213B | 65 | 120 | 23 | 60.9 | 49.3 | 4800 | 6400 | 1.02 |
7313B | 65 | 140 | 33 | 96.1 | 69.3 | 4300 | 5800 | 2.22 |
7014C | 70 | 110 | 20 | 46.9 | 43 | 9200 | 12000 | 0.66 |
7014AC | 70 | 110 | 20 | 42.7 | 39.4 | 6600 | 8300 | 0.66 |
7214C | 70 | 125 | 24 | 75.9 | 60.2 | 8400 | 11000 | 1.12 |
7214AC | 70 | 125 | 24 | 69.8 | 55.6 | 6100 | 7600 | 1.12 |
7214B | 70 | 125 | 24 | 63.2 | 50.6 | 4600 | 6100 | 1.12 |
7314B | 70 | 150 | 35 | 108 | 78.9 | 4000 | 5400 | 2.7 |
7015C | 75 | 115 | 20 | 48 | 45.6 | 8700 | 11000 | 0.69 |
7015AC | 75 | 115 | 20 | 43.6 | 41.7 | 6300 | 7800 | 0.69 |
7215C | 75 | 130 | 25 | 86.1 | 70.6 | 8000 | 11000 | 1.23 |
7215AC | 75 | 130 | 25 | 79.2 | 65.2 | 5800 | 7200 | 1.23 |
7215B | 75 | 130 | 25 | 71.7 | 59.3 | 4300 | 5800 | 1.23 |
7915B | 75 | 160 | 37 | 125 | 98.5 | 3400 | 4500 | 3.3 |
7016C | 80 | 125 | 22 | 58.7 | 55.3 | 8000 | 11000 | 0.93 |
7016AC | 80 | 125 | 22 | 53.4 | 50.6 | 5800 | 7200 | 0.93 |
7216C | 80 | 140 | 26 | 92.8 | 77.5 | 7500 | 9900 | 1.5 |
7216AC | 80 | 140 | 26 | 85.3 | 71.5 | 5400 | 6700 | 1.5 |
7216B | 80 | 140 | 26 | 77.1 | 65 | 4000 | 5400 | 1.5 |
7316B | 80 | 170 | 39 | 127 | 100 | 3500 | 4700 | 3.85 |
7017C | 85 | 130 | 22 | 60.1 | 58.7 | 7600 | 10000 | 0.97 |
7017AC | 85 | 130 | 22 | 54.6 | 53.7 | 5500 | 6800 | 0.97 |
7217C | 85 | 150 | 28 | 107 | 90.6 | 7000 | 9200 | 1.87 |
7217AC | 85 | 150 | 28 | 98.6 | 83.6 | 5000 | 6300 | 1.87 |
7217B | 85 | 150 | 28 | 89.2 | 76 | 3800 | 5000 | 1.87 |
7317B | 85 | 180 | 41 | 137 | 112 | 3300 | 4400 | 4.53 |
7018C | 90 | 140 | 24 | 71.7 | 69.1 | 7100 | 9400 | 1.26 |
7018AC | 90 | 140 | 24 | 65.2 | 63.3 | 5100 | 6400 | 1.26 |
7218C | 90 | 160 | 30 | 123 | 105 | 6500 | 8600 | 2.3 |
7218AC | 90 | 160 | 30 | 113 | 96.7 | 4700 | 5900 | 2.3 |
7218B | 90 | 160 | 30 | 102 | 88 | 3500 | 4700 | 2.3 |
7318B | 90 | 190 | 43 | 148 | 124 | 3100 | 4200 | 5.3 |
7019C | 95 | 145 | 24 | 73.4 | 73.4 | 6700 | 8900 | 1.32 |
7019AC | 95 | 145 | 24 | 66.6 | 67.1 | 4800 | 6000 | 1.32 |
7219C | 95 | 170 | 32 | 133 | 112 | 6100 | 8100 | 2.78 |
7219AC | 95 | 170 | 32 | 122 | 103 | 4400 | 5500 | 2.78 |
7219B | 95 | 170 | 32 | 111 | 94 | 3300 | 4400 | 2.78 |
7319B | 95 | 200 | 45 | 158 | 137 | 3000 | 4000 | 6.12 |
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7000 Series – Angular Contact Ball Bearing | ||||||||
Angular single row ball bearing have a 40° contact angle | ||||||||
Item No. | Dimensions | Basic Load Ratings (N) | Speed (1/min) | Mass | ||||
(mm) | Dynamic | Static | (kg) | |||||
d | D | B | Cr | C0r | Limiting | Reference | approx. | |
7004 | 20 | 42 | 12 | 13,400 | 7,500 | 18,000 | – | 0.061 |
7005 | 25 | 47 | 12 | 15,000 | 9,300 | 16,000 | – | 0.071 |
7006 | 30 | 55 | 13 | 18,300 | 12,500 | 14,000 | – | 0.109 |
7007 | 35 | 62 | 14 | 22,400 | 16,000 | 12,000 | – | 0.14 |
7008 | 40 | 68 | 15 | 26,000 | 18,600 | 10,000 | – | 0.17 |
 | ||||||||
7200 Series – Angular Contact Ball Bearing | ||||||||
Angular single row ball bearing have a 40° contact angle | ||||||||
Item No. | Dimensions | Basic Load Ratings (N) | Speed (1/min) | Mass | ||||
(mm) | Dynamic | Static | (kg) | |||||
d | D | B | Cr | C0r | Limiting | Reference | approx. | |
7200 | 10 | 30 | 9 | 5,000 | 2,600 | 32,000 | 26,000 | 0.033 |
7201 | 12 | 32 | 10 | 6,950 | 3,550 | 28,000 | 26,000 | 0.035 |
7202 | 15 | 35 | 11 | 8,000 | 4,450 | 24,000 | 22,000 | 0.044 |
7203 | 17 | 40 | 12 | 10,000 | 5,700 | 20,000 | 20,000 | 0.064 |
7204 | 20 | 47 | 14 | 13,400 | 7,800 | 18,000 | 18,000 | 0.103 |
7205 | 25 | 52 | 15 | 14,600 | 9,300 | 16,000 | 16,000 | 0.127 |
7206 | 30 | 62 | 16 | 20,400 | 14,100 | 13,000 | 13,000 | 0.197 |
7207 | 35 | 72 | 17 | 27,000 | 19,000 | 11,000 | 12,000 | 0.29 |
7208 | 40 | 80 | 17 | 32,000 | 23,500 | 9,500 | 10,000 | 0.367 |
7209 | 45 | 85 | 19 | 36,000 | 27,000 | 8,500 | 9,500 | 0.411 |
7210 | 50 | 90 | 20 | 37,500 | 28,500 | 8,000 | 9,000 | 0.456 |
7211 | 55 | 100 | 21 | 46,500 | 38,500 | 7,000 | 8,500 | 0.604 |
7212 | 60 | 110 | 22 | 56,000 | 45,000 | 6,300 | 7,500 | 0.777 |
7213 | 65 | 120 | 23 | 64,000 | 55,000 | 6,000 | 7,000 | 1.08 |
7214 | 70 | 125 | 24 | 69,500 | 62,000 | 5,600 | 6,700 | 1.17 |
7215 | 75 | 130 | 25 | 68,000 | 62,000 | 5,300 | 6,700 | 1.25 |
7216 | 80 | 140 | 26 | 80,000 | 72,000 | 5,000 | 6,000 | 1.53 |
7217 | 85 | 150 | 28 | 90,000 | 86,000 | 4,500 | 6,000 | 1.94 |
7218 | 90 | 160 | 30 | 106,000 | 98,000 | 4,300 | 5,600 | 2.38 |
7219 | 95 | 170 | 32 | 116,000 | 106,000 | 4,000 | 5,300 | 2.64 |
7220 | 100 | 180 | 34 | 137,000 | 132,000 | 3,800 | 5,000 | 3.45 |
7221 | 105 | 190 | 36 | 144,000 | 142,000 | 6,000 | 4,800 | 4.18 |
7222 | 110 | 200 | 38 | 155,000 | 154,000 | 3,600 | 4,500 | 4.7 |
7224 | 120 | 215 | 40 | 169,000 | 178,000 | 3,400 | 4,300 | 5.31 |
7226 | 130 | 230 | 40 | 186,000 | 204,000 | 3,200 | 3,800 | 6.12 |
7228 | 140 | 250 | 42 | 198,000 | 231,000 | 4,800 | 3,400 | 8.55 |
7230 | 150 | 270 | 45 | 227000 | 275000 | 4,500 | 3000 | 10.9 |
7232 | 160 | 290 | 48 | 236,000 | 280,000 | 4,300 | 2,800 | 13.5 |
7234 | 170 | 310 | 52 | 265,000 | 325,000 | 3,800 | 2,600 | 16.7 |
 | ||||||||
7300 Series – Angular Contact Ball Bearing | ||||||||
Angular single row ball bearing have a 40° contact angle | ||||||||
Item No. | Dimensions | Basic Load Ratings (N) | Speed (1/min) | Mass | ||||
(mm) | Dynamic | Static | (kg) | |||||
d | D | B | Cr | C0r | Limiting | Reference | approx. | |
7301 | 12 | 37 | 12 | 10.600 | 5.300 | 24.000 | 19.000 | 0,066 |
7302 | 15 | 42 | 13 | 13.200 | 7.200 | 20.000 | 17.000 | 0,081 |
7303 | 17 | 47 | 14 | 16.300 | 9.000 | 18.000 | 15.000 | 0,11 |
7304 | 20 | 52 | 15 | 19.000 | 11.100 | 17.000 | 13.000 | 0,143 |
7305 | 25 | 62 | 17 | 26.000 | 15.800 | 14.000 | 11.000 | 0,242 |
7306 | 30 | 72 | 19 | 33.000 | 2.210 | 11.000 | 10.000 | 0,341 |
7307 | 35 | 80 | 21 | 40.000 | 27.500 | 9.500 | 9.000 | 0,447 |
7308 | 40 | 90 | 23 | 50.000 | 34.500 | 8.500 | 8.500 | 0,646 |
7309 | 45 | 100 | 25 | 61.000 | 43.000 | 7.500 | 7.500 | 0,813 |
7310 | 50 | 110 | 27 | 70.000 | 50.000 | 7.000 | 7.000 | 1,13 |
7311 | 55 | 120 | 29 | 80.000 | 61.000 | 6.300 | 6.700 | 1,46 |
7312 | 60 | 130 | 31 | 90.000 | 69.000 | 5.600 | 6.300 | 1,74 |
7313 | 65 | 140 | 33 | 103.000 | 82.000 | 5.300 | 6.000 | 2,12 |
7314 | 70 | 150 | 35 | 117.000 | 93.000 | 5.000 | 5.600 | 2,58 |
7315 | 75 | 160 | 37 | 130.000 | 107.000 | 4.500 | 5.300 | 3,29 |
7316 | 80 | 170 | 39 | 144.000 | 124.000 | 4.300 | 4.800 | 3,66 |
7317 | 85 | 180 | 41 | 155.000 | 138.000 | 4.000 | 4.500 | 4,4 |
7318 | 90 | 190 | 43 | 167.000 | 155.000 | 3.800 | 4.300 | 5,14 |
7319 | 95 | 200 | 45 | 176.000 | 167.000 | 3.800 | 4.000 | 5,93 |
7320 | 100 | 215 | 47 | 199.000 | 197.000 | 3.600 | 3.600 | 7,16 |
7321 | 105 | 225 | 49 | 209.000 | 214.000 | 5.300 | 3.400 | 9,0 |
7322 | 110 | 240 | 50 | 232.000 | 245.000 | 3.400 | 3.200 | 9,97 |
7324 | 120 | 260 | 55 | 255.000 | 285.000 | 3.200 | 3.000 | 12,5 |
7326 | 130 | 280 | 58 | 285.000 | 325.000 | 3.000 | 2.600 | 15,1 |
7328 | 140 | 300 | 62 | 300.000 | 345.000 | 4.300 | 2.400 | 20,5 |
7330 | 150 | 320 | 65 | 325.000 | 390.000 | 3.800 | 2.200 | 24,8 |
7332 | 160 | 340 | 68 | 360.000 | 450.000 | 3.600 | 2.000 | 29,0 |
7334 | 170 | 360 | 72 | 405.000 | 530.000 | 3.200 | 1.900 | 34,4 |
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Part No. | d/mm | D/mm | B/mm | Load Rating(KN) | Limited  Speed(r/min) | Load Rating(KN) | Limited  Speed(r/min) | ||||
Cr/KN | Cor/KN | Grease | Oil | Cr/KN | Cor/KN | Grease | Oil | ||||
72 serie |  |  |  | α=15°(C) | α=25°(AC) | ||||||
7200 | 10 | 30 | 9 | 6.5 | 3.8 | 56000 | 85000 | 6.3 | 3.7 | 53000 | 80000 |
7201 | 12 | 32 | 10 | 7.2 | 4.5 | 53000 | 80000 | 6.9 | 4.3 | 48000 | 70000 |
7202 | 15 | 35 | 11 | 9.1 | 5.8 | 48000 | 70000 | 8.8 | 5.6 | 43000 | 63000 |
7203 | 17 | 40 | 12 | 11.3 | 7.4 | 40000 | 60000 | 10.9 | 7.1 | 38000 | 56000 |
7204 | 20 | 47 | 14 | 13.1 | 9.6 | 34000 | 50000 | 12.6 | 9.2 | 30000 | 45000 |
7205 | 25 | 52 | 15 | 16.8 | 13.1 | 30000 | 45000 | 16.1 | 12.5 | 26000 | 40000 |
7206 | 30 | 62 | 16 | 23.4 | 18.8 | 24000 | 38000 | 22.3 | 18 | 20000 | 34000 |
7207 | 35 | 72 | 17 | 25.8 | 22.9 | 18000 | 30000 | 24.5 | 21.9 | 17000 | 28000 |
7208 | 40 | 80 | 18 | 34.1 | 30.9 | 17000 | 28000 | 32.5 | 29.5 | 15000 | 24000 |
7209 | 45 | 85 | 19 | 35.5 | 33.8 | 16000 | 26000 | 33.8 | 32.3 | 14000 | 22000 |
7210 | 50 | 90 | 20 | 43.3 | 40.6 | 15000 | 24000 | 41.3 | 38.7 | 14000 | 22000 |
7211 | 55 | 100 | 21 | 53.6 | 51.1 | 14000 | 22000 | 51.1 | 48.8 | 13000 | 20000 |
7212 | 60 | 110 | 22 | 55.8 | 56.2 | 12000 | 19000 | 53 | 53.5 | 11000 | 18000 |
7213 | 65 | 120 | 23 | 67.5 | 69 | 11000 | 18000 | 64.2 | 65.8 | 9500 | 16000 |
7214 | 70 | 125 | 24 | 70.2 | 74.6 | 10000 | 17000 | 66.6 | 71.1 | 9000 | 15000 |
7215 | 75 | 130 | 25 | 72.7 | 80.2 | 9500 | 16000 | 68.9 | 76.3 | 8500 | 14000 |
7216 | 80 | 140 | 26 | 86.5 | 96.5 | 9000 | 15000 | 82.1 | 91.9 | 8000 | 13000 |
7217 | 85 | 150 | 28 | 97.4 | 107.5 | 8500 | 14000 | 92.5 | 102.4 | 7500 | 12000 |
7218 | 90 | 160 | 30 | 121.9 | 131.3 | 8000 | 13000 | 115.8 | 124.6 | 7000 | 11000 |
7219 | 95 | 170 | 32 | 128.9 | 145.1 | 7500 | 12000 | 122.5 | 138.3 | 6700 | 10000 |
7220 | 100 | 180 | 34 | 146.2 | 165.9 | 7000 | 11000 | 138.9 | 158.2 | 6700 | 10000 |
7221 | 105 | 190 | 36 | 164.3 | 188.2 | 7000 | 11000 | 156.3 | 179.5 | 6300 | 9500 |
7222 | 110 | 200 | 38 | 170.4 | 202.5 | 6700 | 10000 | 161.8 | 193 | 6000 | 9000 |
7224 | 120 | 215 | 40 | 175.4 | 218.4 | 6000 | 9000 | 166.3 | 207.9 | 5300 | 8000 |
7226 | 130 | 230 | 40 | 200.4 | 258.3 | 5600 | 8500 | 190.4 | 246.2 | 5000 | 7500 |
7228 | 140 | 250 | 42 | 223.6 | 306.6 | 5000 | 7500 | 212.3 | 292.2 | 4500 | 6700 |
7230 | 150 | 270 | 45 | 240.9 | 341.5 | 4500 | 6700 | 228.7 | 325.5 | 4000 | 6000 |
7232 | 160 | 290 | 48 | 248.6 | 365.8 | 4300 | 6300 | 236.1 | 348.6 | 3800 | 5600 |
7234 | 170 | 310 | 52 | 300.2 | 459.2 | 3800 | 5600 | 285 | 437.6 | 3600 | 5300 |
7236 | 180 | 320 | 52 | 311.2 | 490.8 | 3800 | 5600 | 295.5 | 467.7 | 3400 | 5000 |
7238 | 190 | 340 | 55 | 321.3 | 524.8 | 3400 | 5000 | 305.1 | 500.1 | 3200 | 4800 |
7240 | 200 | 360 | 58 | 330.9 | 558.6 | 3200 | 4800 | 314.2 | 532.3 | 3000 | 4500 |
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Angular Contact Ball Bearing | ||||||||||||
 |  |  |  |  |  |  |  |  |  |  | X1=OD-0.5mm |  |
Single Row | Double Row | Four Points Contact Ball | ||||||||||
70 series | 72 series | 73 series | 52 series | 53 series | 32 series | 33 series | 40 series | 49 series | QJ series | QJF series | X1 series | |
ITEM | ITEM | ITEM | ITEM | ITEM | ITEM | ITEM | ITEM | ITEM | ITEM | ITEM | ITEM | ITEM |
7000 | 7200 | 7300 | 5200 | Â | 3200 | Â | 4032 | 4936 | QJ203 | QJF203 | QJ1571X1 | QJF1571X1 |
7001 | 7201 | 7301 | 5201 | Â | 3201 | Â | Â | 4936X3 | QJ303 | QJF303 | Â | Â |
7002 | 7202 | 7302 | 5202 | 5302 | 3202 | 3302 | Â | 4938X3 | QJ304 | QJF304 | QJ1571X1 | QJF1571X1 |
7003 | 7203 | 7303 | 5203 | 5303 | 3203 | 3303 | 4040 | Â | QJ205 | QJF205 | Â | Â |
7004 | 7204 | 7304 | 5204 | 5304 | 3204 | 3304 | 4044 | 4944X3 | QJ206 | QJF206 | QJ1571X1 | QJF1571X1 |
7005 | 7205 | 7305 | 5205 | 5305 | 3205 | 3305 | 4048X1 | Â | QJ306 | QJF306 | Â | Â |
7006 | 7206 | 7306 | 5206 | 5306 | 3206 | 3306 | Â | 4952X3 | QJ207 | QJF207 | QJ1026X1 | QJF1026X1 |
7007 | 7207 | 7307 | 5207 | 5307 | 3207 | 3307 | Â | 4956X3 | QJ307 | QJF307 | Â | Â |
7008 | 7208 | 7308 | 5208 | 5308 | 3208 | 3308 | Â | 4960 | QJ208 | QJF208 | QJ1571X1 | QJF1571X1 |
7009 | 7209 | 7309 | 5209 | 5309 | 3209 | 3309 | Â | 4960X3 | QJ308 | QJF308 | Â | Â |
7571 | 7210 | 7310 | 5210 | 5310 | 3210 | 3310 | Â | Â | QJ209 | QJF209 | QJ1030X1 | QJF1030X1 |
7011 | 7211 | 7311 | 5211 | 5311 | 3211 | 3311 | Â | Â | QJ309 | QJF309 | Â | Â |
7012 | 7212 | 7312 | 5212 | 5312 | 3212 | 3312 | Â | Â | QJ210 | QJF210 | QJ1032X1 | QJF1032X1 |
7013 | 7213 | 7313 | 5213 | 5313 | 3213 | 3313 | Â | Â | QJ310 | QJF310 | Â | Â |
7014 | 7214 | 7314 | 5214 | 5314 | 3214 | 3314 | Â | Â | QJ212 | QJF212 | QJ1034X1 | QJF1034X1 |
7015 | 7215 | 7315 | 5215 | 5315 | 3215 | 3315 | Â | Â | QJ214 | QJF214 | Â | Â |
7016 | 7216 | 7316 | 5216 | Â | Â | 3316 | Â | Â | QJ216 | QJF216 | QJ1036X1 | QJF1036X1 |
7018 | 7218 | 7318 | 5217 | Â | 3220 | Â | Â | Â | QJ220 | QJF220 | Â | Â |
 | 7219 | 7319 | 5218 |  |  | 3322 |  |  | QJ222 | QJF222 | QJ1038X1 | QJF1038X1 |
7571 | 7220 | 7320 | 5219 | Â | Â | Â | Â | Â | QJ1571 | QJF1571 | Â | Â |
 |  | 7321 | 5220 |  |  |  |  |  | QJ224 | QJF224 | QJ1040X1 | QJF1040X1 |
7571 | 7222 | 7322 | Â | Â | Â | Â | Â | Â | QJ1026 | QJF1026 | Â | Â |
7571 | 7224 | 7324 | Â | Â | Â | Â | Â | Â | QJ226 | QJF226 | Â | Â |
7026 | 7226 | 7326 | Â | Â | Â | Â | Â | Â | QJ1571 | QJF1571 | Â | Â |
7571 | 7228 | 7328 | Â | Â | Â | Â | Â | Â | QJ228 | QJF228 | Â | Â |
7030 | 7230 | 7330 | Â | Â | Â | Â | Â | Â | QJ1030 | QJF1030 | Â | Â |
7032 | 7232 | 7332 | Â | Â | Â | Â | Â | Â | QJ230 | QJF230 | Â | Â |
7034 | 7234 | Â | Â | Â | Â | Â | Â | Â | QJ1032 | QJF1032 | Â | Â |
7036 | 7236 | 7336 | Â | Â | Â | Â | Â | Â | QJ232 | QJF232 | Â | Â |
7038 | Â | Â | Â | Â | Â | Â | Â | Â | QJ1034 | QJF1034 | Â | Â |
7040 | 7240 | Â | Â | Â | Â | Â | Â | Â | QJ234 | QJF234 | Â | Â |
71952 | 7244 | Â | Â | Â | Â | Â | Â | Â | QJ1036 | QJF1036 | Â | Â |
71956 | 72948 | Â | Â | Â | Â | Â | Â | Â | QJ236 | QJF236 | Â | Â |
71957 | 7248 | Â | Â | Â | Â | Â | Â | Â | QJ1038 | QJF1038 | Â | Â |
7072 | Â | Â | Â | Â | Â | Â | Â | Â | QJ238 | QJF238 | Â | Â |
71976 | Â | Â | Â | Â | Â | Â | Â | Â | QJ1040 | QJF1040 | Â | Â |
 |  |  |  |  |  |  |  |  | QJ240 | QJF240 |  |  |
 |  |  |  |  |  |  |  |  | QJ1044 | QJF1044 |  |  |
 |  |  |  |  |  |  |  |  | QJ1048 | QJF1048 |  |  |
 |  |  |  |  |  |  |  |  | QJ1052 | QJF1052 |  |  |
 |  |  |  |  |  |  |  |  | QJ1056 | QJF1056 |  |  |
 |  |  |  |  |  |  |  |  | QJ1060 | QJF1060 |  |  |
 |  |  |  |  |  |  |  |  | QJ1064 | QJF1064 |  |  |
 |  |  |  |  |  |  |  |  | QJ1068 | QJF1068 |  |  |
SAMPLES
1. Samples quantity: 1-10 PCS are available.
2. Free samples:Â It depends on the Model No., material and quantity. Some of the bearings samples need client to pay samples charge and shipping cost.
3. It’s better to start your order with Trade Assurance to get full protection for your samples order.
CUSTOMIZED
The customized LOGO or drawing is acceptable for us.
MOQ
1. MOQ:Â 10 PCS standard bearings.
2. MOQ: 1000 PCS customized your brand bearings.
OEM POLICY
1. We can printing your brand (logo, artwork)on the shield or laser engraving your brand on the shield.
2. We can custom your packaging according to your design
3. All copyright own by clients and we promised don’t disclose any info.
Thank you very much for taking time to view our company’s website. If you are interested in this product, please feel free to contact us. We are always here.
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Contact Angle: | 25° |
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Aligning: | Non-Aligning Bearing |
Separated: | Separated |
Samples: |
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1 Set(Min.Order) | Order Sample |
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Customization: |
Available
| Customized Request |
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Shipping Cost:
Estimated freight per unit. |
about shipping cost and estimated delivery time. |
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Payment Method: |
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Initial Payment Full Payment |
Currency: | US$ |
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Return&refunds: | You can apply for a refund up to 30 days after receipt of the products. |
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Can you Provide Examples of Industries where Ball Bearings are Crucial Components?
Ball bearings are essential components in a wide range of industries where smooth motion, load support, and precision are vital. Here are some examples of industries where ball bearings play a crucial role:
- Automotive Industry:
Ball bearings are used in various automotive applications, including wheel hubs, transmissions, engines, steering systems, and suspension components. They provide reliable rotation and support in both passenger vehicles and commercial vehicles.
- Aerospace Industry:
In the aerospace sector, ball bearings are found in aircraft engines, landing gear systems, control surfaces, and avionics equipment. Their ability to handle high speeds and precision is vital for aviation safety.
- Industrial Machinery:
Ball bearings are integral to a wide range of industrial machinery, including pumps, compressors, conveyors, machine tools, printing presses, and textile machinery. They facilitate smooth operation and load distribution in these diverse applications.
- Medical Equipment:
In medical devices and equipment, ball bearings are used in surgical instruments, imaging equipment, dental tools, and laboratory machinery. Their precision and smooth movement are crucial for accurate diagnostics and treatments.
- Robotics and Automation:
Ball bearings are key components in robotic arms, automation systems, and manufacturing machinery. They enable precise movement, high-speed operation, and reliable performance in automated processes.
- Renewable Energy:
Wind turbines and solar tracking systems utilize ball bearings to enable efficient rotation and tracking of the wind blades and solar panels. Ball bearings withstand the dynamic loads and environmental conditions in renewable energy applications.
- Marine and Shipbuilding:
Ball bearings are used in marine applications such as ship propulsion systems, steering mechanisms, and marine pumps. They withstand the corrosive environment and provide reliable performance in maritime operations.
- Heavy Equipment and Construction:
In construction machinery like excavators, bulldozers, and cranes, ball bearings support the movement of heavy loads and enable efficient operation in demanding environments.
- Electronics and Consumer Appliances:
Consumer electronics like electric motors, computer hard drives, and household appliances rely on ball bearings for smooth motion and reliable operation.
- Oil and Gas Industry:
In oil and gas exploration and extraction equipment, ball bearings are used in drilling rigs, pumps, and processing machinery. They handle the high loads and harsh conditions of this industry.
These examples demonstrate how ball bearings are indispensable components in various industries, contributing to the efficiency, reliability, and functionality of diverse mechanical systems and equipment.
What Precautions should be taken to Prevent Contamination of Ball Bearings in Industrial Settings?
Preventing contamination of ball bearings is essential to ensure their proper function, longevity, and overall performance in industrial settings. Contaminants such as dust, dirt, debris, and particles can significantly impact bearing operation. Here are important precautions to take to prevent contamination of ball bearings:
- Effective Sealing:
Choose ball bearings with appropriate seals or shields to prevent the ingress of contaminants. Seals provide a physical barrier against dust, moisture, and particles, ensuring the bearing’s interior remains clean.
- Clean Environment:
Maintain a clean working environment around the machinery and equipment. Regularly clean the surrounding areas to prevent the accumulation of dirt and debris that could enter the bearings.
- Proper Handling:
Handle bearings with clean hands and use gloves if necessary. Avoid touching the bearing surfaces with bare hands, as natural skin oils can transfer contaminants onto the bearing.
- Clean Tools and Equipment:
Use clean tools and equipment during installation and maintenance to prevent introducing contaminants. Ensure that tools are properly cleaned before coming into contact with the bearing components.
- Contamination-Controlled Workstations:
Establish contamination-controlled workstations for bearing handling, installation, and maintenance. These areas should have proper ventilation, filtered air, and minimal exposure to external contaminants.
- Proper Lubrication:
Use the correct lubricant in appropriate quantities. Lubricants help create a barrier against contaminants and reduce friction. Regularly inspect and replenish lubrication to maintain its effectiveness.
- Regular Inspections:
Implement a routine inspection schedule to monitor the condition of the bearings. Look for signs of contamination, wear, and damage. Address any issues promptly to prevent further damage.
- Training and Education:
Train personnel on proper handling, installation, and maintenance practices to minimize the risk of contamination. Educated employees are more likely to take precautions and prevent accidental contamination.
- Environmental Controls:
In sensitive environments, such as clean rooms or medical facilities, implement strict environmental controls to minimize the presence of contaminants that could affect bearing performance.
- Regular Cleaning and Maintenance:
Perform regular cleaning and maintenance of machinery and equipment to prevent the buildup of contaminants. Keep bearings protected during maintenance to prevent debris from entering during the process.
- Selection of Suitable Bearings:
Choose bearings that are specifically designed for the application’s environmental conditions. Some bearings have advanced sealing options or specialized coatings that enhance contamination resistance.
By implementing these precautions, industries can significantly reduce the risk of contamination in ball bearings, ensuring smooth operation, extended bearing life, and enhanced equipment reliability.
Can you Explain the Various Types of Ball Bearings and their Specific Use Cases?
Ball bearings come in various types, each designed to meet specific application requirements. Here’s an overview of the different types of ball bearings and their specific use cases:
- Deep Groove Ball Bearings:
Deep groove ball bearings are the most common and versatile type. They have a deep raceway that allows them to handle both radial and axial loads. They are used in a wide range of applications, including electric motors, household appliances, automotive components, and industrial machinery.
- Angular Contact Ball Bearings:
Angular contact ball bearings have a contact angle that enables them to handle both radial and axial loads at specific angles. They are suitable for applications where combined loads or thrust loads need to be supported, such as in machine tool spindles, pumps, and agricultural equipment.
- Self-Aligning Ball Bearings:
Self-aligning ball bearings have two rows of balls and are designed to accommodate misalignment between the shaft and the housing. They are used in applications where shaft deflection or misalignment is common, such as conveyor systems, textile machinery, and paper mills.
- Thrust Ball Bearings:
Thrust ball bearings are designed to support axial loads in one direction. They are commonly used in applications where axial loads need to be supported, such as in automotive transmissions, steering systems, and crane hooks.
- Single-Row vs. Double-Row Bearings:
Single-row ball bearings have a single set of balls and are suitable for moderate load and speed applications. Double-row ball bearings have two sets of balls and offer higher load-carrying capacity. Double-row designs are used in applications such as machine tool spindles and printing presses.
- Miniature and Instrument Ball Bearings:
Miniature ball bearings are smaller in size and are used in applications with limited space and lower load requirements. They are commonly used in small electric motors, medical devices, and precision instruments.
- Max-Type and Conrad Bearings:
Max-type ball bearings have a larger number of balls to increase load-carrying capacity. Conrad bearings have fewer balls and are used in applications with moderate loads and speeds.
- High-Precision Ball Bearings:
High-precision ball bearings are designed for applications where accuracy and precision are critical, such as machine tool spindles, aerospace components, and optical instruments.
- High-Speed Ball Bearings:
High-speed ball bearings are engineered to minimize friction and accommodate rapid rotation. They are used in applications such as dental handpieces, turbochargers, and centrifuges.
In summary, the various types of ball bearings are tailored to different application requirements, including load type, direction, speed, and environmental conditions. Selecting the appropriate type of ball bearing ensures optimal performance and longevity in specific applications.
editor by CX 2024-04-23