Ceramic balls : Zicronia precision balls(ZRO2)
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Zicronia precision balls(ZRO2)

G3,G5,G10 precision balls .
Size from 0.8mm to 50mm.

TYPE Boundary dimensions Load rating Limiting speeds
ID
d D B Cr(KN) Cor(KN) grease oil

 Table for size, volume, and weight of precise ceramic ball

Size Volume per 100 pieces Weight per 100 pieces(g/100 piece) Pieces per kg (pcs/kg)
mm inch inch ml/100pcs Si3N4 ZrO2 Al2O3 SiC Si3N4 ZrO2 Al2O3 SiC
Φ0.397 0.016 1/62 0.003 0.011 0.020 0.013 0.010 9479250 5053508 7806441 9783072
Φ0.500 / / 0.007 0.021 0.040 0.026 0.020 4744992 2529615 3907641 4897075
Φ0.600 / / 0.011 0.036 0.068 0.044 0.035 2745944 1463898 2261366 2833956
Φ0.700 / / 0.018 0.058 0.108 0.070 0.056 1729225 921871 1424067 1784648
Φ0.794 0.031 3/97 0.026 0.084 0.158 0.102 0.082 1184906 631688 975805 1222884
Φ0.800 / / 0.027 0.086 0.162 0.105 0.084 1158445 617582 954014 1195575
Φ0.900 / / 0.038 0.123 0.231 0.149 0.119 813613 433747 670034 839691
Φ1.000 / / 0.052 0.169 0.316 0.205 0.163 593124 316202 488455 612134
Φ1.200 / / 0.090 0.291 0.546 0.354 0.282 343243 182987 282671 354244
Φ1.300 / / 0.115 0.370 0.695 0.450 0.359 269970 143924 222328 278623
Φ1.500 / / 0.177 0.569 1.067 0.691 0.551 175740 93689 144727 181373
Φ1.588 0.063 1/16 0.210 0.675 1.266 0.820 0.654 148113 78961 121976 152861
Φ1.984 0.078 6/77 0.409 1.317 2.470 1.599 1.276 75949 40489 62546 78383
Φ2.000 / / 0.419 1.349 2.530 1.638 1.307 74141 39525 61057 76517
Φ2.381 0.094 3/32 0.707 2.276 4.269 2.763 2.205 43941 23425 36186 45349
Φ2.500 / / 0.818 2.634 4.941 3.199 2.553 37960 20237 31261 39177
Φ2.778 0.109 6/55 1.123 3.615 6.780 4.389 3.502 27666 14749 22784 28553
Φ3.000 / / 1.414 4.552 8.539 5.528 4.411 21968 11711 18091 22672
Φ3.175 0.125 1/8 1.676 5.396 10.122 6.552 5.229 18532 9879 15261 19126
Φ3.500 / / 2.245 7.229 13.559  8.778 7.004 13834 7375 11393 14277
Φ3.969 0.156 5/32 3.274 10.54 19.77 12.80 10.21 9486 5057 7812 9790
Φ4.000 / / 3.351 10.79 20.24 13.10 10.46 9268 4941 7632 9565
Φ4.500 / / 4.771 15.36 28.82 18.66 14.89 6509 3470 5360 6718
Φ4.763 0.188 3/16 5.658 18.22 34.17 22.12 17.65 5489 2926 4520 5665
Φ5.000 / / 6.545 21.07 39.53 25.59 20.42 4745 2530 3908 4897
Φ5.500 / / 8.711 28.05 52.62 34.06 27.18 3565 1901 2936 3679
Φ5.556 0.219 7/32 8.980 28.92 54.24 35.11 28.02 3458 1844 2848 3569
Φ5.953 0.234 11/47 11.05 35.57 66.72 43.19 34.46 2811 1499 2315 2902
Φ6.000 / / 11.31 36.42 68.31 44.22 35.29 2746 1464 2261 2834
Φ6.350 0.250 1/4 13.41 43.17 80.98 52.42 41.83 2316 1235 1908 2391
Φ6.500 / / 14.38 46.30 86.85 56.22 44.86 2160 1151 1779 2229
Φ6.747  0.266 25/94 16.08 51.78 97.13 62.88 50.17 1931 1030 1590 1993
Φ7.000 / / 17.96 57.83 108.48 70.22 56.03 1729 921.9 1424 1785
Φ7.144  0.281 9/32 19.09 61.47 115.31 74.64 59.56 1627 867.2 1340 1679
Φ7.500 / / 22.09 71.13 133.42 86.37 68.92 1406 749.5 1158 1451
Φ7.938 0.313 5/16 26.19 84.33 158.19 102.4 81.71 1186 632.2 976.5 1224
Φ8.000 / / 26.81 86.32 161.92 104.8 83.64 1158 617.6 954.0 1196
Φ8.500 / / 32.16 103.5 194.2 125.7 100.3 965.8 514.9 795.4 996.8
Φ8.731 0.344 11/32 34.85 112.2 210.5 136.3 108.7 891.2 475.1 733.9 919.7
Φ9.000 / / 38.17 122.9 230.5 149.2 119.1 813.6 433.7 670.0 839.7
Φ9.525 0.375 3/8 45.25 145.7 273.3 176.9 141.2 686.4 365.9 565.2 708.4
Φ10.000 / / 52.36 168.6 316.3 204.7 163.4 593.1 316.2 488.5 612.1
Φ10.319 0.406 13/32 57.53 185.3 347.5 225.0 179.5 539.8 287.8 444.5 557.1
Φ11.000 / / 69.69 224.4 420.9 272.5 217.4 445.6 237.6 367.0 459.9
Φ11.113 0.438 7/16 71.86 231.4 434.0 281.0 224.2 432.2 230.4 355.9 446.0
Φ11.509 0.453 29/64 79.82 257.0 482.1 312.1 249.0 389.1 207.4 320.4 401.5
Φ11.906 0.469 15/32 88.37 284.5 533.7 345.5 275.7 351.4 187.4 289.4 362.7
Φ12.000 / / 90.48 291.3 546.5 353.8 282.3 343.2 183.0 282.7 354.2
Φ12.303 0.484 15/31 97.51 314.0 588.9 381.2 304.2 318.5 169.8 262.3 328.7
Φ12.700 0.500 1/2 107.3 345.4 647.8 419.4 334.6 289.6 154.4 238.5 298.8
Φ13.000 / / 115.0 370.4 694.8 449.8 358.9 270.0 143.9 222.3 278.6
Φ13.494 0.531 17/32 128.7 414.3 777.1 503.0 401.4 241.4 128.7 198.8 249.1
Φ14.000 / / 143.7 462.6 867.8 561.8 448.3 216.2 115.2 178.0 223.1
Φ14.288 0.563 9/16 152.7 491.8 922.5 597.2 476.5 203.3 108.4 167.5 209.9
Φ15.000 / / 176.7 569.0 1067 691.0 551.3 175.7 93.69 144.7 181.4
Φ15.081 0.594 19/32 179.6 578.3 1085 702.2 560.3 172.9 92.19 142.4 178.5
Φ15.875 0.625 5/8 209.5 674.5 1265 819.1 653.6 148.3 79.04 122.1 153.0
Φ16.000 / / 214.5 690.6 1295 838.6 669.1 144.8 77.20 119.3 149.4
Φ16.669 0.656 61/93 242.5 780.9 1465 948.2 756.6 128.1 68.27 105.5 132.2
Φ17.000 / / 257.2 828.3 1554 1006 802.6 120.7 64.36 99.42 124.6
Φ17.463 0.688 11/16 278.8 897.9 1684 1090 870.0 111.4 59.38 91.72 114.9
Φ18.000 / / 305.4 983.3 1844 1194 952.7 101.7 54.22 83.75 105.0
Φ18.256 0.719 23/32 318.6 1026 1924 1246 994.0 97.48 51.97 80.28 100.6
Φ19.000 / / 359.1 1156 2169 1404 1121 86.47 46.10 71.21 89.25
Φ19.050 0.750 3/4 362.0 1166 2186 1415 1129 85.79 45.74 70.65 88.54
Φ19.844  0.781 25/32 409.2 1317 2471 1600 1277 75.90 40.46 62.51 78.34
Φ20.000 / / 418.9 1349 2530 1638 1307 74.14 39.53 61.06 76.52
Φ20.638 0.813 13/16 460.3 1482 2780 1800 1436 67.47 35.97 55.57 69.64
Φ21.000 / / 484.9 1561 2929 1896 1513 64.05 34.14 52.74 66.10
Φ22.000 / / 557.5 1795 3367 2180 1739 55.70 29.70 45.87 57.49
Φ22.225  0.875 7/8 574.8 1851 3472 2248 1793 54.03 28.80 44.49 55.76
Φ23.000 / / 637.1 2051 3848 2491 1988 48.75 25.99 40.15 50.31
Φ23.813 0.938 15/16 707.0 2277 4270 2765 2206 43.92 23.42 36.17 45.33
Φ24.000 / / 723.8 2331 4372 2830 2258 42.91 22.87 35.33 44.28
Φ25.000 / / 818.1 2634 4941 3199 2553 37.96 20.24 31.26 39.18
Φ25.400 1.000 1 858.0 2763 5182 3355 2677 36.19 19.30 29.81 37.35
Φ26.000 / / 920.3 2963 5558 3598 2871 33.75 17.99 27.79 34.83
Φ26.988 1.063 1 1/16 1029 3314 6217 4024 3211 30.17 16.09 24.85 31.14
Φ27.000 / / 1031 3319 6225 4030 3215 30.13 16.06 24.82 31.10
Φ28.000 / / 1149 3701 6942 4494 3586 27.02 14.40 22.25 27.89
Φ28.575 1.125 1 1/8 1222 3934 7379 4777 3812 25.42 13.55 20.93 26.24
Φ29.000 / / 1277 4112 7713 4993 3984 24.32 12.96 20.03 25.10
Φ30.000 / / 1414 4552 8539 5528 4411 21.97 11.71 18.09 22.67
Φ30.163 1.188 1 3/16 1437 4627 8679 5618 4483 21.61 11.52 17.80 22.31
Φ31.000 / / 1560 5023 9422 6099 4867 19.91 10.61 16.40 20.55
Φ31.750 1.250 1 1/4 1676 5396 10122 6552 5229 18.53 9.879 15.26 19.13
Φ32.000 / / 1716 5525 10363 6708 5353 18.10 9.650 14.91 18.68
Φ33.000 / / 1882 6059 11365 7357 5871 16.50 8.799 13.59 17.03
Φ34.000 / / 2058 6627 12430 8047 6421 15.09 8.045 12.43 15.57
Φ34.925 1.375 1 3/8 2231 7182 13472 8721 6959 13.92 7.423 11.47 14.37
Φ35.000 / / 2245 7229 13559 8778 7004 13.83 7.375 11.39 14.28
Φ36.000 / / 2443 7866 14755 9552 7622 12.71 6.777 10.47 13.12
Φ37.000 / / 2652 8540 16019 10370 8275 11.71 6.243 9.643 12.08
Φ38.000 / / 2873 9251 17353 11234 8964 10.81 5.763 8.902 11.16
Φ38.100 1.500 1 1/2 2896 9325 17491 11323 9035 10.72 5.717 8.832 11.07
Φ39.000 / / 3106 10001 18760 12144 9691 9.999 5.331 8.234 10.32
Φ40.000 / / 3351 10790 20240 13103 10455 9.268 4.941 7.632 9.565
Φ41.275 1.625 1 5/8 3682 11855 22238 14396 11487 8.435 4.497 6.946 8.705
Φ41.672 1.641 1 25/39 3789 12201 22886 14815 11822 8.196 4.369 6.750 8.459
Φ42.000 / / 3879 12491 23431 15168 12103 8.006 4.268 6.593 8.262
Φ44.000 / / 4460 14362 26940 17439 13916 6.963 3.712 5.734 7.186
Φ45.000 / / 4771 15364 28819 18656 14886 6.509 3.470 5.360 6.718
Φ46.000 / / 5097 16411 30783 19927 15901 6.094 3.249 5.018 6.289
Φ47.625 1.875 1 7/8 5656 18212 34162 22115 17646 5.491 2.927 4.522 5.667
Φ48.000 / / 5791 18646 34975 22641 18067 5.363 2.859 4.417 5.535
Φ50.000 / / 6545 21075 39532 25591 20420 4.745 2.530 3.908 4.897
Φ50.800 2.000 2 6864 22103 41460 26839 21416 4.524 2.412 3.726 4.669
Φ52.000 / / 7362 23706 44468 28786 22970 4.218 2.249 3.474 4.353
Φ54.000 / / 8245 26548 49799 32237 25724 3.767 2.008 3.102 3.887
Φ55.000 / / 8711 28051 52617 34061 27179 3.565 1.901 2.936 3.679
Φ56.000 / / 9195 29609 55539 35953 28689 3.377 1.801 2.781 3.486
Φ57.150 2.250 2 1/4 9773 31470 59032 38214 30493 3.178 1.694 2.617 3.279
Φ58.000 / / 10216 32896 61705 39945 31874 3.040 1.621 2.503 3.137
Φ60.000 / / 11310 36417 68311 44221 35286 2.746 1.464 2.261 2.834
Φ62.000 / / 12479 40182 75372 48792 38934 2.489 1.327 2.050 2.568
Φ63.500 2.500 2 1/2 13407 43169 80976 52420 41829 2.316 1.235 1.908 2.391
Φ64.000 / / 13726 44197 82904 53668 42825 2.263 1.206 1.863 2.335
Φ65.000 / / 14379 46301 86851 56223 44864 2.160 1.151 1.779 2.229
Φ66.000 / / 15053 48471 90922 58858 46966 2.063 1.100 1.699 2.129
Φ66.675 2.625 2 5/8 15520 49974 93740 60683 48422 2.001 1.067 1.648 2.065
Φ68.000 / / 16464 53013 99440 64373 51366 1.886 1.006 1.553 1.947
Φ69.850 2.750 2 3/4 17844 57458 107779 69771 55674 1.740 0.928 1.433 1.796
Φ70.000 / / 17959 57829 108475 70221 56033 1.729 0.922 1.424 1.785
Φ73.025  2.875 2 7/8 20390 65655 123154 79724 63616 1.523 0.812 1.254 1.572
Φ76.200 3.000 3 23167 74597 139927 90582 72280 1.341 0.715 1.104 1.384
Φ79.375 3.1253 1/8 26185 84315 158156 102383 81697 1.186 0.632 0.977 1.224
Φ82.550 3.250 3 1/4 29454 94843 177904 115167 91898 1.054 0.562 0.868 1.088
Φ85.725 3.375 3 3/8 32985 106213 199232 128973 102914 0.942 0.502 0.775 0.972
Φ88.900 3.500 3 1/2 36788 118457 222198 143840 114778 0.844 0.450 0.695 0.695
Φ92.075 3.625 3 5/8 40872 131607 246866 159809 127520 0.760 0.405 0.626 0.784
Φ95.250 3.750 3 3/4 45247 145697 273294 176917 141172 0.686 0.366 0.565 0.708
Φ101.60  4.000 4 54914 176822 331678 214712 171330 0.566 0.301 0.466 0.584

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