Ball bearings are essential components used in a multitude of machinery and mechanical systems, allowing for smooth and efficient rotational motion and minimum friction and wear. These devices comprise an outer and inner ring with a set of balls in between.
Ball bearings come in various sizes based on the shaft size and the requirements of the application. Due to their usage in different industries, they are needed for a wide range of applications, from oil drills to skateboard wheels. How are these bearing sizes determined? How can we understand the ball bearing size chart?
Here, we will explore the importance of the ball bearing size chart and learn how to interpret and utilize it effectively. In addition, charts as follows provide commonly used ball bearing sizes and dimensions to help select the exact ball bearing for specific applications, in turn, enabling the equipment to realize optimal performance, reliability, and longevity.
What are Ball Bearings?
A ball bearing is a type of rolling bearing in which a ball is placed between the inner and outer rings that reduces rotational friction and supports radial and axial loads. Also, it improves the efficiency of mechanical power transmission and is commonly used in light industrial machinery. A basic ball bearing comprises four components: a ball, an inner ring, an outer ring, and a cage or retainer. The balls and rings are typically made of high chromium steel.
How Bearings Are Sized?
When measuring bearings, their inner diameter, outer diameter, and width are taken into account. The size of a bearing is typically indicated as ID x OD x W and is usually expressed in millimeters but can be converted to inches. Actually, most manufacturers and suppliers provide bearing measurements in both imperial and metric units.
The series number of a bearing can be found directly on the bearing and corresponds to a specific combination of measurements. To determine the measurements of a particular bearing, ball bearing size charts are readily accessible. The commonly used series are 6200 and 6300, which typically encompass sizes ranging from 10 x 30 x 9 mm (.394 x 1.181 x .354 in) to 150 x 320 x 65 mm (5.906 x 12.598 x 2.559 in).
Ball Bearing Sizes Chart
6000 Series Ball Bearing Dimensions
| Size | Inner Dimension (mm) | Outer Dimension (mm) | Width (mm) | Dynamic (Cr) | Static (Cor) | Weight (lb) |
| 6000 | 10 | 26 | 8 | 1030 | 445 | 0.042 |
| 6001 | 12 | 28 | 8 | 1147 | 535 | 0.048 |
| 6002 | 15 | 32 | 9 | 1254 | 641 | 0.068 |
| 6003 | 17 | 35 | 10 | 1349 | 731 | 0.088 |
| 6004 | 20 | 42 | 12 | 2109 | 1129 | 0.150 |
| 6005 | 25 | 47 | 12 | 2248 | 1315 | 0.172 |
| 6006 | 30 | 55 | 13 | 2967 | 1866 | 0.242 |
| 6007 | 35 | 62 | 14 | 3642 | 2360 | .0326 |
| 6008 | 40 | 68 | 15 | 3867 | 2653 | 0.407 |
| 6009 | 45 | 75 | 16 | 4721 | 3327 | 0.506 |
| 6010 | 50 | 80 | 16 | 4946 | 3642 | .0568 |
| 6011 | 55 | 90 | 18 | 6789 | 4901 | .0796 |
| 6012 | 60 | 95 | 18 | 7081 | 5440 | .0847 |
| 6013 | 65 | 100 | 18 | 6857 | 5665 | 0.957 |
| 6014 | 70 | 110 | 20 | 8565 | 6947 | 1.324 |
| 6015 | 75 | 115 | 20 | 8902 | 7531 | 1.404 |
| 6016 | 80 | 125 | 22 | 10701 | 8947 | 1.870 |
| 6017 | 85 | 130 | 22 | 11128 | 9689 | 1.958 |
| 6018 | 90 | 140 | 24 | 13084 | 11173 | 2.552 |
| 6019 | 95 | 145 | 24 | 13578 | 12117 | 2.662 |
| 6020 | 100 | 150 | 24 | 13533 | 12185 | 2.750 |
| 6021 | 105 | 160 | 26 | 16254 | 14792 | 3.498 |
| 6022 | 110 | 170 | 28 | 18434 | 16411 | 4.312 |
| 6024 | 120 | 180 | 28 | 18659 | 17535 | 4.796 |
| 6026 | 130 | 200 | 33 | 23380 | 22481 | 7.326 |
| 6028 | 140 | 210 | 33 | 24279 | 24279 | 7.832 |
| 6030 | 150 | 225 | 35 | 27427 | 28101 | 9.636 |
6200 Series Ball Bearing Dimensions
| Size | Inner Dimension (mm) | Outer Dimension (mm) | Width (mm) | Dynamic (Cr) | Static (Cor) | Weight (lb) |
| 6200 | 10 | 30 | 9 | 1147 | 535 | 0.070 |
| 6201 | 12 | 32 | 10 | 1533 | 686 | 0.077 |
| 6202 | 15 | 35 | 11 | 1720 | 836 | 0.099 |
| 6203 | 17 | 40 | 12 | 2154 | 1075 | 0.141 |
| 6204 | 20 | 47 | 14 | 2878 | 1495 | 0.227 |
| 6205 | 25 | 52 | 15 | 3147 | 1771 | 0.279 |
| 6206 | 30 | 62 | 16 | 4384 | 2585 | 0.440 |
| 6207 | 35 | 72 | 17 | 5733 | 3417 | 0.634 |
| 6208 | 40 | 80 | 15 | 6632 | 4047 | 0.810 |
| 6209 | 45 | 85 | 19 | 7081 | 4609 | 0.915 |
| 6210 | 50 | 90 | 20 | 7868 | 5216 | 1.019 |
| 6211 | 55 | 100 | 21 | 9757 | 6609 | 1.335 |
| 6212 | 60 | 110 | 22 | 11780 | 8138 | 1.723 |
| 6213 | 65 | 120 | 23 | 12859 | 9015 | 2.178 |
| 6214 | 70 | 125 | 24 | 13983 | 9914 | 2.354 |
| 6215 | 75 | 130 | 25 | 15152 | 10858 | 2.596 |
| 6216 | 80 | 140 | 26 | 16344 | 11915 | 3.080 |
| 6217 | 85 | 150 | 28 | 18884 | 13916 | 3.938 |
| 6218 | 90 | 160 | 30 | 21604 | 16074 | 4.730 |
| 6219 | 95 | 170 | 32 | 24504 | 18412 | 5.764 |
| 6220 | 100 | 180 | 34 | 27427 | 20930 | 6.908 |
| 6221 | 105 | 190 | 36 | 29899 | 23605 | 8.140 |
| 6222 | 110 | 200 | 38 | 32372 | 26303 | 9.592 |
| 6224 | 120 | 215 | 40 | 32822 | 27427 | 12.386 |
| 6226 | 130 | 230 | 40 | 37318 | 32822 | 13.728 |
| 6228 | 140 | 250 | 42 | 39566 | 37318 | 17.754 |
| 6230 | 150 | 270 | 45 | 39566 | 38217 | 22.660 |
6300 Series Ball Bearing Dimensions
| Size | Inner Dimension (mm) | Outer Dimension (mm) | Width (mm) | Dynamic (Cr) | Static (Cor) | Weight (lb) |
| 6300 | 10 | 35 | 11 | 1720 | 782 | 0.12 |
| 6301 | 12 | 37 | 12 | 2185 | 1142 | 0.13 |
| 6302 | 15 | 42 | 13 | 2585 | 1218 | 0.18 |
| 6303 | 17 | 47 | 14 | 3035 | 1479 | 0.24 |
| 6304 | 20 | 52 | 15 | 3552 | 1771 | 0.31 |
| 6305 | 25 | 62 | 17 | 4991 | 2585 | 0.48 |
| 6306 | 30 | 72 | 19 | 6070 | 3417 | 0.77 |
| 6307 | 35 | 80 | 21 | 7464 | 4316 | 1.00 |
| 6308 | 40 | 90 | 23 | 9172 | 5395 | 1.41 |
| 6309 | 45 | 100 | 25 | 11870 | 7149 | 1.92 |
| 6310 | 50 | 110 | 27 | 13938 | 8610 | 2.35 |
| 6311 | 55 | 120 | 29 | 16096 | 10116 | 3.01 |
| 6312 | 60 | 130 | 31 | 18412 | 11735 | 3.74 |
| 6313 | 65 | 140 | 33 | 20840 | 13466 | 4.58 |
| 6314 | 70 | 150 | 35 | 23380 | 15322 | 5.54 |
| 6315 | 75 | 160 | 37 | 25403 | 17355 | 6.64 |
| 6316 | 80 | 170 | 39 | 27651 | 19491 | 7.90 |
| 6317 | 85 | 180 | 41 | 29899 | 21761 | 9.31 |
| 6318 | 90 | 190 | 43 | 32148 | 24054 | 10.80 |
| 6319 | 95 | 200 | 45 | 34396 | 26752 | 12.47 |
| 6320 | 100 | 215 | 47 | 38892 | 31698 | 15.40 |
| 6321 | 105 | 225 | 49 | 41365 | 34396 | 17.71 |
| 6322 | 110 | 240 | 50 | 46086 | 40465 | 20.99 |
| 6324 | 120 | 260 | 55 | 47659 | 42714 | 28.16 |
| 6326 | 130 | 280 | 58 | 51256 | 48559 | 40.26 |
| 6328 | 140 | 300 | 62 | 57326 | 55078 | 49.06 |
| 6330 | 150 | 320 | 65 | 64070 | 67442 | 58.74 |
6700 Series Ball Bearing Dimensions
| Size | Inner Dimension (mm) | Outer Dimension (mm) | Width (mm) | Dynamic (Cr) | Static (Cor) | Weight (lb) |
| 6701 | 12 | 18 | 4 | 205 | 119 | 0.004 |
| 6702 | 15 | 21 | 4 | 191 | 110 | 0.005 |
| 6703 | 17 | 23 | 4 | 216 | 137 | 0.006 |
| 6704 | 20 | 27 | 4 | 232 | 162 | 0.010 |
| 6705 | 25 | 32 | 4 | 246 | 187 | 0.015 |
| 6706 | 30 | 37 | 4 | 263 | 220 | 0.018 |
| 6707 | 35 | 44 | 5 | 416 | 366 | 0.021 |
6800 Series Ball Bearing Dimensions
| Size | Inner Dimension (mm) | Outer Dimension (mm) | Width (mm) | Dynamic (Cr) | Static (Cor) | Weight (lb) |
| 6800 | 10 | 19 | 5 | 411 | 208 | 0.011 |
| 6801 | 12 | 21 | 5 | 432 | 234 | 0.0132 |
| 6802 | 15 | 24 | 5 | 468 | 286 | 0.0154 |
| 6803 | 17 | 26 | 5 | 632 | 387 | 0.0176 |
| 6804 | 20 | 32 | 7 | 899 | 555 | 0.0418 |
| 6805 | 25 | 37 | 7 | 967 | 663 | 0.0484 |
| 6806 | 30 | 42 | 7 | 1057 | 821 | 0.0572 |
| 6807 | 35 | 47 | 7 | 1102 | 910 | 0.0638 |
| 6808 | 40 | 52 | 7 | 1113 | 944 | 0.0726 |
| 6809 | 45 | 58 | 7 | 1394 | 1214 | 0.088 |
| 6810 | 50 | 65 | 7 | 1484 | 1371 | 0.1144 |
| 6811 | 55 | 72 | 9 | 1978 | 1821 | 0.1826 |
| 6812 | 60 | 78 | 10 | 2585 | 2383 | 0.2288 |
| 6813 | 65 | 85 | 10 | 2675 | 2585 | 0.2772 |
| 6814 | 70 | 90 | 10 | 2720 | 2675 | 0.2948 |
| 6815 | 75 | 95 | 10 | 2810 | 2900 | 0.3124 |
| 6816 | 80 | 100 | 10 | 2855 | 2990 | 0.33 |
| 6817 | 85 | 110 | 13 | 4204 | 4271 | 0.5852 |
| 6818 | 90 | 115 | 13 | 4271 | 4429 | 0.6138 |
| 6819 | 95 | 120 | 13 | 4339 | 4429 | 1.551 |
| 6820 | 100 | 125 | 13 | 4406 | 4766 | 0.6798 |
| 6821 | 105 | 130 | 13 | 4451 | 5373 | 0.7128 |
| 6822 | 110 | 140 | 16 | 6317 | 6902 | 1.3332 |
| 6824 | 120 | 150 | 16 | 6519 | 7419 | 1.441 |
| 6826 | 130 | 165 | 18 | 8295 | 9262 | 2.0658 |
| 6828 | 140 | 175 | 18 | 8588 | 9981 | 2.2 |
| 6830 | 150 | 190 | 20 | 10746 | 12342 | 3.08 |
6900 Series Ball Bearing Dimensions
| Size | Inner Dimension (mm) | Outer Dimension (mm) | Width (mm) | Dynamic (Cr) | Static (Cor) | Weight (lb) |
| 6900 | 10 | 22 | 6 | 652 | 326 | 0.010 |
| 6901 | 12 | 24 | 6 | 967 | 506 | 0.011 |
| 6902 | 15 | 28 | 7 | 1034 | 573 | 0.017 |
| 6903 | 17 | 30 | 7 | 1428 | 832 | 0.018 |
| 6904 | 20 | 37 | 9 | 1574 | 1023 | 0.036 |
| 6905 | 25 | 42 | 9 | 1630 | 1124 | 0.041 |
| 6906 | 30 | 47 | 9 | 2450 | 1742 | 0.045 |
| 6907 | 35 | 55 | 10 | 3080 | 2237 | 0.073 |
| 6908 | 40 | 62 | 12 | 3170 | 2450 | 0.112 |
| 6909 | 45 | 68 | 12 | 3260 | 2630 | 0.132 |
| 6910 | 50 | 72 | 12 | 3732 | 3170 | 0.133 |
| 6911 | 55 | 80 | 13 | 4541 | 3889 | 0.185 |
| 6912 | 60 | 85 | 13 | 3912 | 3619 | 0.104 |
| 6913 | 65 | 90 | 13 | 5328 | 4766 | 0.211 |
| 6914 | 70 | 100 | 16 | 5485 | 5081 | 0.342 |
| 6915 | 75 | 105 | 16 | 5620 | 5395 | 0.363 |
| 6916 | 80 | 110 | 16 | 7171 | 6654 | 0.382 |
| 6917 | 85 | 120 | 18 | 7374 | 7104 | 0.535 |
| 6918 | 90 | 125 | 18 | 7576 | 7531 | 0.565 |
| 6919 | 95 | 130 | 18 | 10116 | 9419 | 0.705 |
| 6920 | 100 | 140 | 20 | 10454 | 10071 | 0.960 |
| 6921 | 105 | 145 | 20 | 10768 | 10746 | 1.000 |
| 6922 | 110 | 150 | 20 | 12859 | 12792 | 1.040 |
| 6924 | 120 | 165 | 22 | 15647 | 15737 | 1.410 |
| 6926 | 130 | 180 | 24 | 16029 | 16816 | 1.860 |
| 6928 | 140 | 190 | 24 | 20997 | 21199 | 1.980 |
| 6930 | 150 | 210 | 28 | 21000 | 326 | 3.050 |
600 Series Ball Bearing Dimensions
| Size | Inner Dimension (mm) | Outer Dimension (mm) | Width (mm) | Dynamic (Cr) | Static (Cor) | Weight (lb) | |
| OPEN | ZZ/2RS | ||||||
| 603 | 3 | 9 | 3 | 5 | 128.15 | 35.97 | 0.00198 |
| 604 | 4 | 12 | 4 | 4 | 218.06 | 80.93 | 0.00462 |
| 605 | 5 | 14 | 5 | 5 | 292.25 | 110.16 | 0.0077 |
| 606 | 6 | 17 | 6 | 6 | 508.07 | 166.36 | 0.01276 |
| 607 | 7 | 19 | 6 | 6 | 526.05 | 200.08 | 0.01672 |
| 608 | 8 | 22 | 7 | 7 | 7410.87 | 303.49 | 0.0264 |
| 609 | 9 | 24 | 7 | 7 | 764.35 | 325.97 | 0.0352 |
| 623 | 3 | 10 | 4 | 4 | 143.88 | 49.46 | 0.0044 |
| 624 | 4 | 13 | 5 | 5 | 294.50 | 110.16 | 0.0066 |
| 625 | 5 | 16 | 5 | 5 | 395.66 | 152.87 | 0.0088 |
| 626 | 6 | 19 | 6 | 6 | 526.05 | 198.96 | 0.0176 |
| 627 | 7 | 22 | 7 | 7 | 753.11 | 314.73 | 0.0308 |
| 628 | 8 | 24 | 8 | 8 | 899.23 | 357.44 | 0.0352 |
| 629 | 9 | 26 | 8 | 8 | 1022.88 | 438.38 | 0.0418 |
| 633 | 3 | 13 | 5 | 5 | 292.55 | 110.16 | 0.0066 |
| 634 | 4 | 16 | 5 | 5 | 395.66 | 152.87 | 0.011 |
| 635 | 5 | 19 | 6 | 6 | 526.05 | 198.96 | 0.0176 |
| 636 | 6 | 22 | 7 | 7 | 741.87 | 303.49 | 0.0286 |
| 637 | 7 | 26 | 9 | 9 | 910.47 | 364.19 | 0.0528 |
| 638 | 8 | 28 | 9 | 9 | 1022.88 | 438.38 | 0.0638 |
| 639 | 9 | 30 | 10 | 10 | 1146.52 | 537.29 | 0.077 |
| 673 | 3 | 6 | 2 | 2.5 | 54.40 | 21.13 | 0.00044 |
| 674 | 4 | 7 | 2 | 2.5 | 60.47 | 38.22 | 0.000616 |
| 675 | 5 | 8 | 2 | 2.5 | 65.64 | 31.92 | 0.000704 |
| 676 | 6 | 10 | 2.5 | 3 | 119.15 | 53.95 | 0.00143 |
| 677 | 7 | 11 | 2.5 | 3 | 124.77 | 60.47 | 0.001474 |
| 678 | 8 | 12 | 2.5 | 3.5 | 129.26 | 66.99 | 0.00165 |
| 683 | 3 | 7 | 2 | 3 | 81.52 | 26.44 | 0.000726 |
| 684 | 4 | 9 | 2.5 | 4 | 136.59 | 48.47 | 0.001386 |
| 685 | 5 | 11 | 3 | 5 | 138.80 | 57.28 | 0.00242 |
| 686 | 6 | 13 | 3.5 | 5 | 231.33 | 88.12 | 0.00418 |
| 687 | 7 | 14 | 3.5 | 5 | 251.16 | 114.65 | 0.00462 |
| 688 | 8 | 16 | 4 | 5 | 283.26 | 132.64 | 0.00682 |
| 689 | 9 | 17 | 4 | 5 | 298.99 | 149.50 | 0.00704 |
| 693 | 3 | 8 | 3 | 4 | 125.89 | 42.71 | 0.001342 |
| 694 | 4 | 11 | 4 | 4 | 215.82 | 76.43 | 0.00374 |
| 695 | 5 | 13 | 4 | 4 | 296.75 | 110.16 | 0.00528 |
| 696 | 6 | 15 | 5 | 5 | 393.41 | 150.62 | 0.00858 |
| 697 | 7 | 17 | 5 | 5 | 359.69 | 159.61 | 0.01166 |
| 698 | 8 | 19 | 6 | 6 | 386.67 | 188.84 | 0.01584 |
| 699 | 9 | 20 | 6 | 6 | 550.78 | 236.05 | 0.0187 |
600 Series (Flanged) Ball Bearing Dimensions
| Size | Inner Dimension (mm) | Outer Dimension (mm) | Width (mm) | Dynamic (Cr) | Static (Cor) | Weight (lb) | |
| OPEN | ZZ/2RS | ||||||
| F603 | 3 | 9 | 3 | 5 | 42.71 | 49.46 | 0.0022 |
| F604 | 4 | 12 | 4 | 4 | 220.31 | 83.18 | 0.0055 |
| F605 | 5 | 14 | 5 | 5 | 229.30 | 110.16 | 0.00858 |
| F606 | 6 | 17 | 6 | 6 | 519.31 | 193.33 | 0.0143 |
| F607 | 7 | 19 | 6 | 6 | 629.46 | 229.30 | 0.01914 |
| F608 | 8 | 22 | 7 | 7 | 696.90 | 269.77 | 0.02948 |
| F623 | 3 | 10 | 4 | 4 | 146.13 | 51.71 | 0.00407 |
| F624 | 4 | 13 | 5 | 5 | 301.24 | 112.40 | 0.00748 |
| F625 | 5 | 16 | 5 | 5 | 301.24 | 150.62 | 0.01188 |
| F626 | 6 | 19 | 6 | 6 | 645.20 | 245.04 | 0.0198 |
| F627 | 7 | 22 | 7 | 7 | 674.42 | 247.29 | 0.03124 |
| F634 | 4 | 16 | 5 | 5 | 397.91 | 155.12 | 0.01254 |
| F635 | 5 | 19 | 6 | 6 | 409.15 | 206.82 | 0.0209 |
| F683 | 3 | 7 | 2 | 3 | 53.95 | 22.48 | 0.000814 |
| F684 | 4 | 9 | 2.5 | 4 | 11.16 | 49.46 | 0.00154 |
| F685 | 5 | 11 | 3 | 5 | 164.11 | 60.70 | 0.00286 |
| F686 | 6 | 13 | 3.5 | 5 | 247.29 | 101.16 | 0.00506 |
| F687 | 7 | 14 | 3.5 | 5 | 269.77 | 119.15 | 0.0055 |
| F688 | 8 | 16 | 4 | 5 | 269.77 | 134.88 | 0.00814 |
| F689 | 9 | 17 | 4 | 5 | 368.69 | 164.11 | 0.00858 |
| F693 | 3 | 8 | 3 | 4 | 101.16 | 47.21 | 0.00154 |
| F694 | 4 | 11 | 4 | 4 | 164.11 | 65.19 | 0.00418 |
| F695 | 5 | 13 | 4 | 4 | 26.78 | 96.67 | 0.00616 |
| F696 | 6 | 15 | 5 | 5 | 397.91 | 155.12 | 0.00946 |
| F697 | 7 | 17 | 5 | 5 | 368.69 | 164.11 | 0.01232 |
| F698 | 8 | 19 | 6 | 6 | 512.56 | 209.07 | 0.01826 |
| F699 | 9 | 20 | 6 | 6 | 393.41 | 179.85 | 0.0209 |
MR Series Ball Bearing Dimensions
| Size | Inner Dimension (mm) | Outer Dimension (mm) | Width (mm) | Dynamic (Cr) | Static (Cor) | Weight (lb) | |
| OPEN | ZZ/2RS | ||||||
| MR104 | 4 | 10 | 3 | 4 | 131.51 | 45.86 | 0.00209 |
| MR105 | 5 | 10 | 3 | 4 | 96.67 | 37.77 | 0.00209 |
| MR106 | 6 | 10 | 2.5 | 3 | 111.28 | 49.01 | 0.001232 |
| MR117 | 7 | 11 | 2.5 | 3 | 102.29 | 45.19 | 0.001364 |
| MR126 | 6 | 12 | 3 | 4 | 160.74 | 65.64 | 0.002794 |
| MR128 | 8 | 12 | 2.5 | 3.5 | 122.52 | 61.82 | 0.001562 |
| MR137 | 7 | 13 | 3 | 4 | 121.40 | 62.05 | 0.003476 |
| MR148 | 8 | 14 | 3.5 | 4 | 184.34 | 86.55 | 0.004092 |
| MR31 | 1 | 3 | 1.5 | – | 17.98 | 5.17 | 0.000088 |
| MR41 | 1.2 | 4 | 1.8 | 2.5 | 31.02 | 7.87 | 0.00022 |
| MR52 | 2 | 5 | 2 | 2.5 | 37.99 | 11.24 | 0.000352 |
| MR62 | 2 | 6 | 2.5 | 2.5 | 74.19 | 22.03 | 0.00066 |
| MR63 | 3 | 6 | 2 | 2.5 | 46.76 | 16.64 | 0.00044 |
| MR72 | 2 | 7 | 2.5 | 3 | 86.55 | 28.55 | 0.00099 |
| MR74 | 4 | 7 | 2 | 2.5 | 69.69 | 25.85 | 0.000484 |
| MR82 | 2.5 | 8 | 2.5 | 3 | 125.89 | 40.24 | 0.001232 |
| MR83 | 3 | 8 | 2.5 | 3 | 125.89 | 40.24 | 0.001188 |
| MR84 | 4 | 8 | 2 | 3 | 88.80 | 31.25 | 0.000792 |
| MR85 | 5 | 8 | 2 | 2.5 | 69.69 | 26.98 | 0.000572 |
| MR93 | 3 | 9 | 2.5 | 4 | 128.14 | 42.04 | 0.001606 |
| MR95 | 5 | 9 | 2.5 | 3 | 96.67 | 37.77 | 0.0011 |
16000 Series Ball Bearing Dimensions
| Size | Inner Dimension (mm) | Outer Dimension (mm) | Width (mm) | Dynamic (Cr) | Static (Cor) | Weight (lb) |
| 16001 | 12 | 28 | 7 | 1142 | 535 | 0.0418 |
| 16002 | 15 | 32 | 8 | 1259 | 573 | 0.055 |
| 16003 | 17 | 35 | 8 | 1533 | 760 | 0.0594 |
| 16004 | 20 | 42 | 8 | 1776 | 1000 | 0.11 |
| 16005 | 25 | 47 | 8 | 1776 | 1000 | 0.132 |
| 16006 | 30 | 55 | 9 | 2518 | 1405 | 0.187 |
| 16007 | 35 | 62 | 9 | 2585 | 1978 | 0.22 |
| 16008 | 40 | 68 | 9 | 2810 | 2293 | 0.286 |
| 16009 | 45 | 75 | 10 | 2878 | 2293 | 0.374 |
| 16010 | 50 | 80 | 10 | 3642 | 2967 | 0.396 |
| 16011 | 55 | 90 | 11 | 3642 | 3867 | 0.572 |
| 16012 | 60 | 95 | 11 | 3709 | 3372 | 0.616 |
| 16013 | 65 | 100 | 11 | 3934 | 3597 | 0.66 |
| 16014 | 70 | 110 | 13 | 6025 | 5305 | 0.9702 |
| 16015 | 75 | 115 | 13 | 6205 | 5688 | 1.0186 |
| 16016 | 80 | 125 | 14 | 7194 | 6654 | 1.3662 |
| 16017 | 85 | 130 | 14 | 7419 | 7081 | 1.4344 |
| 16018 | 90 | 140 | 16 | 9330 | 8880 | 1.9206 |
| 16019 | 95 | 145 | 16 | 9667 | 9442 | 1.9888 |
| 16020 | 100 | 150 | 16 | 9554 | 9442 | 2.079 |
| 16021 | 105 | 160 | 18 | 11690 | 11353 | 2.728 |
| 16022 | 110 | 170 | 19 | 12926 | 12702 | 3.322 |
60/22 – 63/22 Series Ball Bearing Dimensions
| Size | Inner Dimension (mm) | Outer Dimension (mm) | Width (mm) | Dynamic (Cr) | Static (Cor) | Weight (lb) |
| 60/22 | 22 | 44 | 12 | 2113 | 1135 | 0.1628 |
| 60/28 | 28 | 52 | 12 | 2810 | 1664 | 0.2112 |
| 60/32 | 32 | 58 | 13 | 3395 | 2057 | 0.2684 |
| 62/22 | 22 | 50 | 14 | 2900 | 1529 | 0.2618 |
| 62/28 | 28 | 58 | 16 | 3732 | 2136 | 0.385 |
| 62/32 | 32 | 65 | 17 | 4654 | 2608 | 0.495 |
| 63/22 | 22 | 56 | 16 | 4136 | 2079 | 0.3938 |
| 63/28 | 28 | 68 | 18 | 6002 | 3147 | 0.6314 |
| 63/32 | 32 | 75 | 20 | 6722 | 3822 | 0.8558 |
62000 Series Ball Bearing Dimensions
| Size | Inner Dimension (mm) | Outer Dimension (mm) | Width (mm) | Dynamic (Cr) | Static (Cor) | Weight (lb) |
| 62200 | 10 | 30 | 14 | 1149 | 537 | 0.0968 |
| 62201 | 12 | 32 | 14 | 1533 | 688 | 0.1166 |
| 62202 | 15 | 35 | 14 | 1718 | 836 | 0.143 |
| 62203 | 17 | 40 | 16 | 2151 | 1077 | 0.2112 |
| 62204 | 20 | 47 | 18 | 2887 | 1495 | 0.319 |
| 62205 | 25 | 52 | 18 | 3152 | 1771 | 0.3784 |
| 62206 | 30 | 62 | 20 | 4375 | 2543 | 0.605 |
| 62207 | 35 | 72 | 23 | 5771 | 3440 | 0.902 |
| 62208 | 40 | 80 | 23 | 6636 | 4078 | 1.3552 |
| 62209 | 45 | 85 | 23 | 7120 | 4649 | 1.375 |
| 62210 | 50 | 90 | 23 | 7884 | 5211 | 1.5972 |
5200 Series Ball Bearing Dimensions
| Size | Inner Dimension (mm) | Outer Dimension (mm) | Width (mm) | Dynamic (Cr) | Static (Cor) | Weight (lb) |
| 5200 | 10 | 30 | 14.2 | 1200 | 755 | 0.108 |
| 5201 | 12 | 32 | 15.8 | 1580 | 1030 | .026 |
| 5202 | 15 | 35 | 15.8 | 1740 | 1180 | .141 |
| 5203 | 17 | 40 | 17.4 | 2210 | 1540 | .212 |
| 5204 | 20 | 47 | 20.6 | 3000 | 2410 | .337 |
| 5205 | 25 | 52 | 20.6 | 3550 | 2710 | .386 |
| 5206 | 30 | 62 | 23.8 | 4950 | 3900 | .631 |
| 5207 | 35 | 72 | 26.9 | 6550 | 5300 | .961 |
| 5208 | 40 | 80 | 30.1 | 7400 | 6100 | 1.30 |
| 5209 | 45 | 85 | 30.1 | 8300 | 6900 | 1.41 |
| 5210 | 50 | 90 | 30.1 | 8850 | 7700 | 1.52 |
| 5211 | 55 | 100 | 33.3 | 9180 | 8490 | 2.46 |
| 5212 | 60 | 110 | 36.5 | 13700 | 13200 | 3.14 |
| 5213 | 65 | 120 | 38.1 | 14900 | 14700 | 4.22 |
| 5214 | 70 | 125 | 39.6 | 16200 | 16200 | 4.54 |
| 5215 | 75 | 130 | 41.2 | 17700 | 17100 | 5.46 |
| 5216 | 80 | 140 | 44.4 | 18620 | 17900 | 6.56 |
5300 Series Ball Bearing Dimensions
| Size | Inner Dimension (mm) | Outer Dimension (mm) | Width (mm) | Dynamic (Cr) | Static (Cor) | Weight (lb) |
| 5300 | 10 | 35 | 19.05 | 1450 | 1280 | 0.21 |
| 5301 | 12 | 37 | 19.05 | 1640 | 1400 | .230 |
| 5302 | 15 | 42 | 19.05 | 1880 | 1560 | .290 |
| 5303 | 17 | 47 | 22.22 | 2200 | 1940 | .430 |
| 5304 | 20 | 52 | 22.22 | 2800 | 2350 | .520 |
| 5305 | 25 | 62 | 25.40 | 8110 | 4360 | .750 |
| 5306 | 30 | 72 | 30.16 | 10200 | 5720 | 1.13 |
| 5307 | 35 | 80 | 34.92 | 12700 | 7340 | 1.75 |
| 5308 | 40 | 90 | 36.51 | 15600 | 9170 | 2.31 |
| 5309 | 45 | 100 | 39.68 | 18700 | 11200 | 3.13 |
| 5310 | 50 | 110 | 44.45 | 23700 | 14600 | 4.25 |
| 5311 | 55 | 120 | 49.21 | 27400 | 17200 | 5.06 |
| 5312 | 60 | 130 | 53.97 | 31300 | 19900 | 6.96 |
| 5313 | 65 | 140 | 58.73 | 35500 | 22900 | 8.61 |
| 5314 | 70 | 150 | 63.5 | 39800 | 26000 | 10.8 |
| 5315 | 75 | 160 | 68.26 | 43600 | 29300 | 12.10 |
| 5316 | 80 | 170 | 68.26 | 47200 | 32800 | 15.0 |
R Inch Series Ball Bearing Dimensions
| Size | Inner Dimension (in) | Outer Dimension (in) | Width (in) | Dynamic (Cr) | Static (Cor) | Weight (lb) | |
| OPEN | ZZ/2RS | ||||||
| R1-5 | 0.0937 | .03125 | 0.1094 | 0.1406 | 124 | 39 | 0.00132 |
| R10 | 0.6250 | 1.3750 | 0.2812 | 0.3438 | 966 | 569 | 0.0616 |
| R12 | 0.7500 | 1.6250 | 0.3125 | 0.4375 | 1369 | 864 | 0.0946 |
| R133 | 0.0937 | 0.1875 | 0.0625 | 0.0937 | 42 | 13 | 0.00022 |
| R14 | 0.8750 | 1.8750 | .03750 | 0.5000 | 1623 | 1020 | 0.1562 |
| R144 | 0.1250 | 0.2500 | 0.0937 | 0.1094 | 64 | 21 | 0.00055 |
| R155 | 0.1562 | 0.3125 | 0.1094 | 0.1250 | 81 | 33 | 0.001122 |
| R156 | 0.1875 | 0.3125 | 0.1094 | 0.1250 | 81 | 33 | 0.000858 |
| R16 | 1.0000 | 2.0000 | 0.3750 | 0.5000 | 1736 | 1164 | 0.187 |
| R166 | 0.1875 | 0.3750 | 0.1250 | 0.1250 | 160 | 61 | 0.001782 |
| R168 | 0.2500 | 0.3750 | 0.1250 | 0.1250 | 84 | 39 | 0.001254 |
| R18 | 1.1250 | 2.1250 | 0.3750 | 0.5000 | 1852 | 1164 | 0.187 |
| R1810 | 0.3125 | 0.5000 | 0.1562 | 0.1562 | 121 | 62 | 0.003432 |
| R188 | 0.2500 | .05000 | 0.1250 | 0.1875 | 243 | 99 | 0.003366 |
| R2 | 0.1250 | .03750 | 0.1562 | 0.1562 | 142 | 49 | 0.002992 |
| R2-5 | 0.1250 | 0.3125 | 0.1094 | 0.1406 | 126 | 40 | 0.00121 |
| R2-6 | 0.1250 | 0.3750 | 0.1094 | 0.1406 | 144 | 51 | 0.002112 |
| R20 | 1.2500 | 2.2500 | 0.3750 | 0.5000 | 1935 | 1455 | 0.2068 |
| R22 | 1.3750 | 2.5000 | 0.4375 | 0.5625 | 2803 | 1947 | 0.2838 |
| R24 | 1.5000 | 2.6250 | 0.4375 | 0.5625 | 2803 | 1947 | 0.3014 |
| R3 | 0.1875 | 0.5000 | 0.1562 | 0.1960 | 292 | 109 | 0.004862 |
| R4 | 0.2500 | 0.6250 | .01960 | 0.1960 | 333 | 138 | 0.009812 |
| R4A | 0.2500 | 0.7500 | 0.2188 | 0.2812 | 526 | 199 | 0.016456 |
| R6 | 0.3750 | 0.8750 | 0.2188 | 0.2812 | 753 | 32 | 0.019844 |
| R8 | 0.5000 | 1.1250 | 0.2500 | 0.3125 | 884 | 466 | 0.033 |
1600 Inch Series Ball Bearing Dimensions
| Size | Inner Dimension (in) | Outer Dimension (in) | Width (in) | Dynamic (Cr) | Static (Cor) | Weight (lb) |
| 1601 | 0.1875 | 0.6875 | 0.2500 | 443 | 164 | 0.0041 |
| 1602 | 0.2500 | 0.6875 | 0.2500 | 443 | 164 | 0.0064 |
| 1603 | 0.3125 | 0.8750 | 0.2813 | 740 | 306 | 0.0095 |
| 1604 | 0.3750 | 0.8750 | 0.2813 | 749 | 317 | 0.0086 |
| 1605 | 0.3125 | 0.9063 | 0.3125 | 749 | 317 | 0.0168 |
| 1606 | 0.3750 | 0.9063 | 0.3125 | 749 | 317 | 0.0218 |
| 1607 | 0.4375 | 0.9063 | 0.3125 | 605 | 286 | 0.0222 |
| 1614 | 0.3750 | 1.1250 | 0.3750 | 881 | 506 | 0.0350 |
| 1615 | 0.4375 | 1.1250 | 0.3750 | 881 | 506 | 0.0340 |
| 1616 | 0.5000 | 1.1250 | 0.3750 | 881 | 506 | 0.0300 |
| 1620 | 0.4375 | 1.3750 | 0.4375 | 1326 | 787 | 0.0500 |
| 1621 | 0.5000 | 1.3750 | 0.4375 | 1326 | 787 | 0.0480 |
| 1622 | 0.5625 | 1.3750 | 0.4375 | 1326 | 787 | 0.0400 |
| 1623 | 0.6250 | 1.3750 | 0.4375 | 1326 | 787 | 0.0480 |
| 1628 | 0.6250 | 1.6250 | 0.5000 | 1630 | 787 | 0.0720 |
| 1630 | 0.7500 | 1.6250 | 0.5000 | 1630 | 1000 | 0.0650 |
| 1633 | 0.6250 | 1.7500 | 0.5000 | 1630 | 1000 | 0.0920 |
| 1635 | 0.7500 | 1.7500 | 0.5000 | 1630 | 1000 | 0.0850 |
| 1638 | 0.7500 | 2.0000 | 0.5625 | 2428 | 1000 | 0.1200 |
| 1640 | 0.8750 | 2.0000 | 0.5625 | 2428 | 1562 | 0.1120 |
| 1641 | 1.0000 | 2.0000 | 0.5625 | 2428 | 1562 | 0.1000 |
| 1652 | 1.1250 | 2.5000 | 0.6250 | 2878 | 1562 | 0.2100 |
| 1654 | 1.2500 | 2.5000 | 0.6250 | 2878 | 1888 | 0.1900 |
| 1657 | 1.2500 | 2.5625 | 0.6875 | 3709 | 2383 | 0.2150 |
| 1658 | 1.3125 | 2.5625 | 0.6875 | 3709 | 2383 | 0.2000 INCH SERIES |
Importance of the Ball Bearing Size Chart
The ball bearing size chart offers a comprehensive reference guide to a wide range of dimensions and specifications for ball bearings.
The ball bearing size chart typically includes the following primary parameters:
1. Bearing Dimensions
The size chart includes crucial measurements, including the inner diameter (bore diameter), outer diameter, and width of the bearing. These dimensions are crucial in establishing whether the bearing is compatible with the intended shaft and housing.
2. Load Ratings
Ball bearings endure both radial and axial loads during operation. Load ratings listed in the size chart represent the maximum capacity a bearing can withstand without encountering premature failure.
3. Speed Ratings
The speed ratings establish the highest rotational speed at which a bearing can function without generating excessive heat or experiencing premature wear.
4. Clearance
The internal gap between the balls and raceways of a bearing is known as bearing clearance. This clearance affects the axial and radial play of the bearing and also influences its thermal expansion characteristics.
Interpreting the Bearing Size Chart
To make the proper selection for your application, it is crucial to have a clear understanding of the bearing size chart.
1. Identify your needs
To properly identify your needs, assess the operational conditions and performance requirements of your application. This includes factors such as load, speed, temperature, and the surrounding environment.
2. Choose the bearing type
Refer to the chart and choose the suitable bearing type based on the requirements of your application.
3. Verify dimensions
Ensure that the dimensions of the bearings align with the specific requirements of your shaft and housing. Confirm that the bore diameter, outer diameter, and width correspond to the specifications of your machinery.
4. Verify load and speed ratings
When selecting a bearing, it’s essential to verify its load and speed ratings to confirm that it can handle the anticipated loads and rotational speeds in your specific application.
5. Consider clearance and tolerance
When considering bearing performance, take into account clearance and tolerance. These factors can significantly influence the functionality of the overall system, so it’s vital to ensure that they’re appropriate for your applications.
Why Are There So Many Sizes?
The size of a ball bearing is determined by the shaft size and the specific requirements of the application, which has a significant impact on its performance and capabilities. Consequently, different industries utilize various sizes of ball bearings to meet their specific needs.
In general, ball bearings are smaller, load capacities are weaker. In such cases, small ball bearings are better suited for applications where space efficiency is prioritized over overload capacity. Precision miniature bearings are frequently used in incredibly small applications, including robotics, medical instruments, and semiconductor equipment. Conversely, larger bearings are designed to handle heavier loads, making them ideal for industries such as agriculture, mining, drilling, and heavy power tools. Some manufacturers such as Runsom Precision even offer custom bearing sizes tailored to the unique requirements of specific applications.
How to Measure Ball Bearings?
After prolonged use, it’s not unusual for the bearing identification number to become illegible or worn out. In such cases, manual measurement of the bearing becomes necessary. Accurate measurements can be obtained using a vernier caliper. In the absence of a vernier caliper, measurements can still be taken carefully using a ruler.
- To measure the inner diameter, you can use calipers by placing the outside anvils into the inner ring of the bearing. Ensure the measurement fits perfectly from edge to edge without exerting any pressure on the bearing. Alternatively, you can use a ruler to measure the inner circle of the bearing from end to end.
- For measuring the outer diameter, place the bearing within the jaws of the caliper until it fits accurately. Another option is to use a ruler and measure from one outside edge of the bearing to the other.
- Repeat the previous step to measure the width of the bearing.
- To determine the bearing series number, refer to a bearing size chart.
To find the correct bearing match or replacement, it is essential to consider other significant aspects of the bearing number. Pay attention to the suffix, which provides additional details about the bearing design and features:
- Shield or seal type: There are different options for the shield or seal type of the bearing, which can be metal, rubber, or snap ring, and it may have one or two of these.
- Cage material: The cage of the bearing can be made of various materials such as brass, polyamide, steel, or others.
- Internal clearance level: The bearing may have a specific internal clearance level, indicated by markings such as C2 for little clearance, no marking for standard clearance, and C3 or higher for larger clearances, especially in high-temperature conditions.
- Grease temperature: The bearing may require grease that can withstand certain temperature ranges.
- Outside coatings: The inner or outer ring of the bearing may be coated with substances like aluminum oxide to provide resistance when subjected to specific conditions or environments.
Conclusion
Ball bearings allow for smooth and efficient rotational motion and minimum friction and wear in various machinery and mechanical systems. They consist of ball rollers positioned between the inner and outer steel rings to withstand larger loads.
This article presented ball bearing size charts that are commonly used. In addition, it offers guidance on how to define, interpret, and measure ball bearings.
Custom CNC Machining Bearings Expert – Runsom Precision
The bearing size and attributes are identified using a standardized numbering code system developed by ABMA. However, at Runsom Precision, we can manufacture non-standard bearings with unique characteristics through our custom CNC machining services.
We understand the importance of selecting the appropriate bearings when it comes to building dependable and efficient machinery. With our team of highly skilled engineers and machinists, we possess the expertise to fully understand and utilize our knowledge to assist you in making well-informed decisions. Whether you need customized solutions, standardized bearings, or bearings designed for high loads and speeds, we are well-equipped to meet your requirements. Request an instant quote today to get started on your next project today!
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