Home- Thin-Section Bearing- Metric Slim Bearings-Type A Angular Contact Slim Bearings
Metric ball bearing type A (angular contact ball structure) can carry larger axial loads while carring a portion of radial loads the speed of the bearing is higher than that of four point contact bearing and deep groove bearing.
The rotating speed of angular contact ball bearing is much higher than that of four point contact and deep groove ball bearings.
Metric type A angular contact ball bearings are designed to support higher axial loads while maintaining excellent rotational speed performance. Compared with four-point contact bearings and standard deep groove ball bearings, this bearing type delivers better stability under high-speed operating conditions and provides more reliable running accuracy in demanding industrial applications.
The optimized contact angle design allows the bearing to carry substantial axial force while also supporting a certain level of radial load. This balanced load capability makes metric type A angular contact ball bearings suitable for equipment that requires smooth rotation, precise positioning, and long-term operational stability. Industries such as automation equipment, rotary tables, robotics, medical systems, packaging machinery, and precision transmission systems commonly select this bearing structure for high-efficiency motion control applications.
To simplify installation and improve load distribution, metric type A angular contact ball bearings can be supplied in matched bearing sets. Customers can choose different arrangement methods according to working conditions, including face-to-face arrangements, back-to-back arrangements, and tandem bearing configurations. These flexible mounting options help improve rigidity, axial positioning accuracy, and overall system reliability in complex mechanical assemblies.
The bearing structure also supports high rotational speeds with reduced friction and stable temperature performance during continuous operation. Manufacturers often select this design when equipment requires compact dimensions without sacrificing load capacity or running precision. The lightweight structure and optimized internal geometry help reduce vibration and operating noise, which is especially important for precision machinery and high-speed rotating systems.
Three thickness options are available to meet different installation space and load requirements:
8 mm
13 mm
20 mm
Each bearing is manufactured with strict dimensional control and consistent raceway quality to ensure smooth motion performance and extended service life. Depending on the application environment, customized materials, lubrication solutions, preload configurations, and sealing options can also be provided to meet specific operational requirements.
Metric type A angular contact ball bearings offer an ideal combination of high-speed capability, axial load performance, compact structure, and installation flexibility, making them a practical solution for modern precision equipment and space-limited mechanical systems.
| Part No | Dimension(mm) | Basic Cap(kg) | Weight | Interchange | |||||
| d | D | H | Cor | Cr | Coa | Ca | Kg | KAYDON | |
| NK02508AR0 | 25 | 41 | 8 | 372 | 272 | 1073 | 561 | 0.06 | K02508AR0 |
| NK05008AR0 | 50 | 66 | 8 | 656 | 367 | 1894 | 819 | 0.08 | K05008AR0 |
| NK06008AR0 | 60 | 76 | 8 | 787 | 408 | 2273 | 925 | 0.09 | K06008AR0 |
| NK07008AR0 | 70 | 86 | 8 | 896 | 440 | 2588 | 1099 | 0.10 | K07008AR0 |
| NK08008AR0 | 80 | 96 | 8 | 1006 | 470 | 2903 | 1090 | 0.12 | K08008AR0 |
| NK09008AR0 | 90 | 106 | 8 | 1137 | 505 | 3282 | 1182 | 0.13 | K09008AR0 |
| NK10008AR0 | 100 | 116 | 8 | 1246 | 533 | 3598 | 1257 | 0.14 | K10008AR0 |
| NK11008AR0 | 110 | 126 | 8 | 1356 | 561 | 3914 | 1329 | 0.15 | K11008AR0 |
| NK12008AR0 | 120 | 136 | 8 | 1465 | 587 | 4229 | 1400 | 0.16 | K12008AR0 |
| NK13008AR0 | 130 | 146 | 8 | 1596 | 618 | 4608 | 1482 | 0.17 | K13008AR0 |
| NK14008AR0 | 140 | 156 | 8 | 1706 | 643 | 4923 | 1549 | 0.18 | K14008AR0 |
| NK15008AR0 | 150 | 166 | 8 | 1815 | 667 | 5239 | 1615 | 0.19 | K15008AR0 |
| NK16008AR0 | 160 | 176 | 8 | 1946 | 696 | 5618 | 1691 | 0.20 | K16008AR0 |
| NK17008AR0 | 170 | 186 | 8 | 2055 | 720 | 5933 | 1754 | 0.21 | K17008AR0 |
| NK18008AR0 | 180 | 196 | 8 | 2165 | 742 | 6249 | 1816 | 0.22 | K18008AR0 |
| NK19008AR0 | 190 | 206 | 8 | 2296 | 769 | 6628 | 1889 | 0.23 | K19008AR0 |
| NK20008AR0 | 200 | 216 | 8 | 2405 | 791 | 6944 | 1948 | 0.23 | K20008AR0 |
| NK25008AR0 | 250 | 266 | 8 | 2974 | 897 | 8585 | 2244 | 0.28 | K25008AR0 |
| NK30008AR0 | 300 | 316 | 8 | 3564 | 999 | 10289 | 2532 | 0.33 | K30008AR0 |
| NK32008AR0 | 320 | 336 | 8 | 3805 | 1039 | 10983 | 2645 | 0.36 | K32008AR0 |
| NK34008AR0 | 340 | 356 | 8 | 4023 | 1073 | 11614 | 2745 | 0.38 | K34008AR0 |
| NK36008AR0 | 360 | 376 | 8 | 4264 | 1110 | 12309 | 2854 | 0.40 | K36008AR0 |
| Part No | Dimension(mm) | Basic Cap(kg) | Weight | Interchange | |||||
| d | D | H | Cor | Cr | Coa | Ca | Kg | KAYDON | |
| NK02513AR0 | 25 | 51 | 13 | 616 | 554 | 1778 | 1075 | 0.13 | K02513AR0 |
| NK05013AR0 | 50 | 76 | 13 | 1064 | 725 | 3070 | 1547 | 0.20 | K05013AR0 |
| NK06013AR0 | 60 | 86 | 13 | 1232 | 782 | 3555 | 1706 | 0.22 | K06013AR0 |
| NK07013AR0 | 70 | 96 | 13 | 1456 | 860 | 4201 | 1906 | 0.25 | K07013AR0 |
| NK08013AR0 | 80 | 106 | 13 | 1623 | 913 | 4686 | 2050 | 0.28 | K08013AR0 |
| NK09013AR0 | 90 | 116 | 13 | 1791 | 964 | 5171 | 2190 | 0.31 | K09013AR0 |
| NK10013AR0 | 100 | 126 | 13 | 1959 | 1013 | 5656 | 2324 | 0.34 | K10013AR0 |
| NK11013AR0 | 110 | 136 | 13 | 2127 | 1061 | 6141 | 2455 | 0.37 | K11013AR0 |
| NK12013AR0 | 120 | 146 | 13 | 2295 | 1108 | 6625 | 2583 | 0.39 | K12013AR0 |
| NK13013AR0 | 130 | 156 | 13 | 2519 | 1171 | 7272 | 2748 | 0.42 | K13013AR0 |
| NK14013AR0 | 140 | 166 | 13 | 2687 | 1215 | 7757 | 2869 | 0.45 | K14013AR0 |
| NK15013AR0 | 150 | 176 | 13 | 2855 | 1258 | 8241 | 2987 | 0.48 | K15013AR0 |
| NK16013AR0 | 160 | 186 | 13 | 3023 | 1301 | 8726 | 3104 | 0.51 | K16013AR0 |
| NK17013AR0 | 170 | 196 | 13 | 3191 | 1342 | 9211 | 3217 | 0.54 | K17013AR0 |
| NK18013AR0 | 180 | 206 | 13 | 3359 | 1382 | 9696 | 3329 | 0.56 | K18013AR0 |
| NK19013AR0 | 190 | 216 | 13 | 3527 | 1422 | 10181 | 3439 | 0.59 | K19013AR0 |
| NK20013AR0 | 200 | 226 | 13 | 3750 | 1476 | 10827 | 3583 | 0.62 | K20013AR0 |
| NK25013AR0 | 250 | 276 | 13 | 4590 | 1659 | 13251 | 4100 | 0.76 | K25013AR0 |
| NK30013AR0 | 300 | 326 | 13 | 5486 | 1840 | 15837 | 4618 | 0.90 | K30013AR0 |
| NK32013AR0 | 320 | 346 | 13 | 5822 | 1904 | 16806 | 4804 | 0.96 | K32013AR0 |
| NK34013AR0 | 340 | 366 | 13 | 6213 | 1978 | 17937 | 5017 | 1.02 | K34013AR0 |
| NK36013AR0 | 360 | 386 | 13 | 6550 | 2038 | 18907 | 5196 | 1.07 | K36013AR0 |
| Part No | Dimension(mm) | Basic Cap(kg) | Weight | Interchange | |||||
| d | D | H | Cor | Cr | Coa | Ca | Kg | KAYDON | |
| NK02520AR0 | 25 | 65 | 20 | 1134 | 1155 | 3272 | 2115 | 0.31 | K02520AR0 |
| NK05020AR0 | 50 | 90 | 20 | 1889 | 1460 | 5454 | 2973 | 0.49 | K05020AR0 |
| NK06020AR0 | 60 | 100 | 20 | 2141 | 1547 | 6181 | 3231 | 0.56 | K06020AR0 |
| NK07020AR0 | 70 | 110 | 20 | 2393 | 1633 | 6908 | 3480 | 0.62 | K07020AR0 |
| NK08020AR0 | 80 | 120 | 20 | 2645 | 1717 | 7635 | 3720 | 0.69 | K08020AR0 |
| NK09020AR0 | 90 | 130 | 20 | 3023 | 1851 | 8726 | 4067 | 0.77 | K09020AR0 |
| NK10020AR0 | 100 | 140 | 20 | 3275 | 1929 | 9453 | 4290 | 0.84 | K10020AR0 |
| NK11020AR0 | 110 | 150 | 20 | 3527 | 2005 | 10181 | 4507 | 0.91 | K11020AR0 |
| NK12020AR0 | 120 | 160 | 20 | 3778 | 2080 | 10908 | 4719 | 0.97 | K12020AR0 |
| NK13020AR0 | 130 | 170 | 20 | 4030 | 2154 | 11635 | 4927 | 1.04 | K13020AR0 |
| NK14020AR0 | 140 | 180 | 20 | 4282 | 2226 | 12362 | 5130 | 1.11 | K14020AR0 |
| NK15020AR0 | 150 | 190 | 20 | 4660 | 2339 | 13453 | 5427 | 1.19 | K15020AR0 |
| NK16020AR0 | 160 | 200 | 20 | 4912 | 2407 | 14180 | 5621 | 1.26 | K16020AR0 |
| NK17020AR0 | 170 | 210 | 20 | 5146 | 2474 | 14907 | 5811 | 1.32 | K17020AR0 |
| NK18020AR0 | 180 | 220 | 20 | 5416 | 2540 | 15634 | 5999 | 1.39 | K18020AR0 |
| NK19020AR0 | 190 | 230 | 20 | 5668 | 2605 | 16361 | 6183 | 1.46 | K19020AR0 |
| NK20020AR0 | 200 | 240 | 20 | 6045 | 2706 | 17452 | 6455 | 1.54 | K20020AR0 |
| NK25020AR0 | 250 | 290 | 20 | 7431 | 3041 | 21452 | 7408 | 1.89 | K25020AR0 |
| NK30020AR0 | 300 | 340 | 20 | 8691 | 3317 | 25088 | 8222 | 2.23 | K30020AR0 |
| NK32020AR0 | 320 | 360 | 20 | 9321 | 3454 | 26906 | 8615 | 2.37 | K32020AR0 |
| NK34020AR0 | 340 | 380 | 20 | 9824 | 3556 | 28360 | 8923 | 2.51 | K34020AR0 |
| NK36020AR0 | 360 | 400 | 20 | 10454 | 3685 | 30178 | 9300 | 2.66 | K36020AR0 |