71900 Series Super Precision Angular Contact Ball Bearings

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71900 Series Super Precision Angular Contact Ball Bearings

The 71900 Series is the most popular choice for high-speed machine tool spindles requiring a balance between performance and space efficiency. With a slim cross-section compared to the 7000 series, these bearings allow for the use of larger, stiffer shafts to maximize system accuracy. Available in various contact angles (C, AC, CD) and preload levels, our 71900 range is designed to handle high radial and axial loads at elevated speeds. These bearings are essential for high-speed milling, grinding, and turning centers where precision and high-frequency stability are paramount.

Contact angle
Radial dynamic load rating
439 lbf 457 lbf 486 lbf 544 lbf 565 lbf 574 lbf 596 lbf 691 lbf 702 lbf 718 lbf 731 lbf 747 lbf 760 lbf 776 lbf 848 lbf 878 lbf 893 lbf 922 lbf 936 lbf 981 lbf 1040 lbf 1053 lbf 1098 lbf 1112 lbf 1141 lbf 1170 lbf 1186 lbf 1215 lbf 1244 lbf 1258 lbf 1287 lbf 1361 lbf 1390 lbf 1433 lbf 1462 lbf 1521 lbf 1580 lbf 1609 lbf 1638 lbf 1667 lbf 1712 lbf 1755 lbf 1784 lbf 1814 lbf 1843 lbf 1917 lbf 1960 lbf 2034 lbf 2077 lbf 2106 lbf 2194 lbf 2239 lbf 2340 lbf 2385 lbf 2430 lbf 2498 lbf 2565 lbf 2632 lbf 2722 lbf 2790 lbf 2812 lbf 2858 lbf 2925 lbf 2992 lbf 3038 lbf 3105 lbf 3150 lbf 3285 lbf 3330 lbf 3398 lbf 3442 lbf 3510 lbf 3578 lbf 3668 lbf 3712 lbf 3780 lbf 3870 lbf 4005 lbf 4095 lbf 4185 lbf 4275 lbf 4388 lbf 4478 lbf 4568 lbf 4680 lbf 4770 lbf 4860 lbf 4972 lbf 5062 lbf 5152 lbf 5355 lbf 5445 lbf 5558 lbf 5648 lbf 5738 lbf 5850 lbf 5962 lbf 6075 lbf 6210 lbf 6322 lbf 6435 lbf 6548 lbf 6660 lbf 6795 lbf 6908 lbf 7020 lbf 7178 lbf 7312 lbf 7470 lbf 7605 lbf 7762 lbf 7898 lbf 8055 lbf 8190 lbf 8348 lbf 8482 lbf 8775 lbf 8932 lbf 9068 lbf 9360 lbf 9518 lbf 9810 lbf 9945 lbf 10102 lbf 10395 lbf 10530 lbf 10688 lbf 10980 lbf 11115 lbf 11408 lbf 11700 lbf 11858 lbf 12150 lbf 12442 lbf 12578 lbf 12870 lbf 13162 lbf 13320 lbf 13612 lbf 13905 lbf 14040 lbf 14332 lbf 14918 lbf 15795 lbf 16088 lbf 16380 lbf 16672 lbf 17122 lbf 17550 lbf 17842 lbf 19170 lbf 19598 lbf 20340 lbf 20768 lbf 21060 lbf 21510 lbf 21938 lbf 22388 lbf 22725 lbf 24300 lbf 25650 lbf 26325 lbf 26775 lbf 27225 lbf 27900 lbf 28125 lbf 28575 lbf 29250 lbf 29925 lbf 31500 lbf 32850 lbf 33300 lbf 33975 lbf 34425 lbf 35100 lbf 35775 lbf 36675 lbf 37125 lbf 37800 lbf 38700 lbf 40050 lbf 41850 lbf 43875 lbf 44775 lbf 45675 lbf 46800 lbf 47700 lbf 48600 lbf 49725 lbf 51525 lbf 52650 lbf 53550 lbf 55575 lbf 58500 lbf 59625 lbf 62100 lbf 63225 lbf 64350 lbf 65475 lbf 67950 lbf 73125 lbf 76050 lbf 77625 lbf 78975 lbf 80550 lbf 81900 lbf 83475 lbf 84825 lbf 87750 lbf 89325 lbf 95175 lbf 98100 lbf 99450 lbf 101025 lbf 103950 lbf 106875 lbf 124425 lbf 128700 lbf 133200 lbf 140400 lbf 157950 lbf 163800 lbf
Radial static load rating
169 lbf 176 lbf 191 lbf 198 lbf 238 lbf 248 lbf 266 lbf 281 lbf 290 lbf 308 lbf 328 lbf 338 lbf 344 lbf 351 lbf 382 lbf 396 lbf 405 lbf 428 lbf 450 lbf 468 lbf 477 lbf 495 lbf 504 lbf 531 lbf 562 lbf 585 lbf 596 lbf 619 lbf 630 lbf 675 lbf 686 lbf 709 lbf 720 lbf 731 lbf 765 lbf 776 lbf 810 lbf 821 lbf 855 lbf 878 lbf 900 lbf 934 lbf 968 lbf 990 lbf 1012 lbf 1024 lbf 1046 lbf 1069 lbf 1125 lbf 1170 lbf 1192 lbf 1215 lbf 1238 lbf 1260 lbf 1282 lbf 1316 lbf 1350 lbf 1372 lbf 1395 lbf 1418 lbf 1440 lbf 1474 lbf 1530 lbf 1721 lbf 1800 lbf 1834 lbf 1868 lbf 1912 lbf 1946 lbf 1980 lbf 2025 lbf 2059 lbf 2092 lbf 2138 lbf 2171 lbf 2205 lbf 2250 lbf 2340 lbf 2385 lbf 2475 lbf 2565 lbf 2610 lbf 2655 lbf 2700 lbf 2745 lbf 2812 lbf 2902 lbf 2970 lbf 3015 lbf 3082 lbf 3150 lbf 3285 lbf 3375 lbf 3442 lbf 3600 lbf 3668 lbf 3735 lbf 3825 lbf 3892 lbf 3960 lbf 4050 lbf 4118 lbf 4185 lbf 4275 lbf 4410 lbf 4500 lbf 4680 lbf 4770 lbf 4860 lbf 4950 lbf 5040 lbf 5130 lbf 5310 lbf 5400 lbf 5512 lbf 5738 lbf 5850 lbf 6075 lbf 6188 lbf 6412 lbf 6525 lbf 6750 lbf 6862 lbf 6975 lbf 7088 lbf 7200 lbf 7312 lbf 7538 lbf 7650 lbf 7762 lbf 7988 lbf 8100 lbf 8212 lbf 8438 lbf 8550 lbf 8775 lbf 9000 lbf 9338 lbf 9900 lbf 10238 lbf 10462 lbf 10800 lbf 11475 lbf 11700 lbf 12375 lbf 13162 lbf 13500 lbf 13950 lbf 14175 lbf 14400 lbf 14738 lbf 15075 lbf 15300 lbf 15638 lbf 15975 lbf 16200 lbf 16538 lbf 16875 lbf 17550 lbf 19462 lbf 20588 lbf 21712 lbf 22950 lbf 23400 lbf 23850 lbf 24300 lbf 24750 lbf 25200 lbf 26100 lbf 27000 lbf 28125 lbf 29025 lbf 29700 lbf 30825 lbf 31500 lbf 32175 lbf 32850 lbf 33750 lbf 34425 lbf 35100 lbf 36000 lbf 37350 lbf 38925 lbf 41175 lbf 42750 lbf 43425 lbf 45000 lbf 45900 lbf 46800 lbf 47700 lbf 48600 lbf 49500 lbf 52200 lbf 56250 lbf 58500 lbf 59625 lbf 61875 lbf 64125 lbf 65250 lbf 67500 lbf 68625 lbf 72000 lbf 73125 lbf 75375 lbf 77625 lbf 82125 lbf 84375 lbf 87750 lbf 90000 lbf 91125 lbf 93375 lbf 95625 lbf 96750 lbf 99000 lbf 102375 lbf 108000 lbf 112500 lbf 117000 lbf 119250 lbf 126000 lbf 128250 lbf 131625 lbf 135000 lbf 137250 lbf 139500 lbf 141750 lbf 144000 lbf 150750 lbf 159750 lbf 168750 lbf 180000 lbf 191250 lbf 194625 lbf 198000 lbf 202500 lbf 205875 lbf 256500 lbf 270000 lbf 274500 lbf 290250 lbf 308250 lbf 360000 lbf 389250 lbf
Part Number Bore diameter Outside diameter Width Contact angle Matched arrangement Preload Seal type Ring material Ball material Radial dynamic load rating Radial static load rating Limiting speed
71944 ACD/P4ATBTA 220 mm 300 mm 114 mm 25 ° Triplex Back-to-Back (TBT) Extra light / Class A Open Chrome Steel Chrome Steel 101025 lbf 191250 lbf 11 X 1000 rpm
71944 ACD/P4AQBCA 220 mm 300 mm 152 mm 25 ° Quadruplex Back-to-Back (QBC) Extra light / Class A Open Chrome Steel Chrome Steel 124425 lbf 256500 lbf 11 X 1000 rpm
71944 ACD/P4AQBCB 220 mm 300 mm 152 mm 25 ° Quadruplex Back-to-Back (QBC) Light / Class B Open Chrome Steel Chrome Steel 124425 lbf 256500 lbf 11 X 1000 rpm
71944 ACD/P4AQBTA 220 mm 300 mm 152 mm 25 ° Quadruplex Tandem Back-to-Back (QBT) Extra light / Class A Open Chrome Steel Chrome Steel 124425 lbf 256500 lbf 11 X 1000 rpm
71948 CD/P4A 240 mm 320 mm 38 mm 15 ° Single Available Open Chrome Steel Chrome Steel 51525 lbf 73125 lbf 6 X 1000 rpm
71948 CDGA/P4A 240 mm 320 mm 38 mm 15 ° Single Extra light / Class A Open Chrome Steel Chrome Steel 51525 lbf 73125 lbf 7.5 X 1000 rpm
71948 CDGB/P4A 240 mm 320 mm 38 mm 15 ° Single Light / Class B Open Chrome Steel Chrome Steel 51525 lbf 73125 lbf 7.5 X 1000 rpm
71948 CDGC/P4A 240 mm 320 mm 38 mm 15 ° Single Moderate / Class C Open Chrome Steel Chrome Steel 51525 lbf 73125 lbf 7.5 X 1000 rpm
71948 ACD/P4A 240 mm 320 mm 38 mm 25 ° Single Available Open Chrome Steel Chrome Steel 48600 lbf 68625 lbf 5.3 X 1000 rpm
71948 ACDGA/P4A 240 mm 320 mm 38 mm 25 ° Single Extra light / Class A Open Chrome Steel Chrome Steel 48600 lbf 68625 lbf 7.5 X 1000 rpm
71948 ACDGB/P4A 240 mm 320 mm 38 mm 25 ° Single Light / Class B Open Chrome Steel Chrome Steel 48600 lbf 68625 lbf 7.5 X 1000 rpm
71948 CD/P4ADBA 240 mm 320 mm 76 mm 15 ° Duplex Back-to-Back (DB) Extra light / Class A Open Chrome Steel Chrome Steel 83475 lbf 144000 lbf 7.5 X 1000 rpm
71948 CD/P4ADBB 240 mm 320 mm 76 mm 15 ° Duplex Back-to-Back (DB) Light / Class B Open Chrome Steel Chrome Steel 83475 lbf 144000 lbf 7.5 X 1000 rpm
71948 CD/P4ADBC 240 mm 320 mm 76 mm 15 ° Duplex Back-to-Back (DB) Moderate / Class C Open Chrome Steel Chrome Steel 83475 lbf 144000 lbf 7.5 X 1000 rpm
71948 CD/P4ADGA 240 mm 320 mm 76 mm 15 ° Universal Matchable (SU) Extra light / Class A Open Chrome Steel Chrome Steel 83475 lbf 144000 lbf 7.5 X 1000 rpm
71948 CD/P4ADGC 240 mm 320 mm 76 mm 15 ° Universal Matchable (SU) Moderate / Class C Open Chrome Steel Chrome Steel 83475 lbf 144000 lbf 7.5 X 1000 rpm
71948 ACD/P4ADBD 240 mm 320 mm 76 mm 25 ° Duplex Back-to-Back (DB) Heavy / Class D Open Chrome Steel Chrome Steel 78975 lbf 137250 lbf 7.5 X 1000 rpm
71948 ACD/P4ADBB 240 mm 320 mm 76 mm 25 ° Duplex Back-to-Back (DB) Light / Class B Open Chrome Steel Chrome Steel 78975 lbf 137250 lbf 7.5 X 1000 rpm
71948 ACD/P4ADBC 240 mm 320 mm 76 mm 25 ° Duplex Back-to-Back (DB) Moderate / Class C Open Chrome Steel Chrome Steel 78975 lbf 137250 lbf 7.5 X 1000 rpm
71948 ACD/P4ADGA 240 mm 320 mm 76 mm 25 ° Universal Matchable (SU) Extra light / Class A Open Chrome Steel Chrome Steel 78975 lbf 137250 lbf 7.5 X 1000 rpm
71948 ACD/P4ADGB 240 mm 320 mm 76 mm 25 ° Universal Matchable (SU) Light / Class B Open Chrome Steel Chrome Steel 78975 lbf 137250 lbf 7.5 X 1000 rpm
71948 ACD/P4ATBTB 240 mm 320 mm 114 mm 25 ° Triplex Back-to-Back (TBT) Light / Class B Open Chrome Steel Chrome Steel 103950 lbf 205875 lbf 7.5 X 1000 rpm
71948 ACD/P4ATBTC 240 mm 320 mm 114 mm 25 ° Triplex Back-to-Back (TBT) Moderate / Class C Open Chrome Steel Chrome Steel 103950 lbf 205875 lbf 7.5 X 1000 rpm
71948 ACD/P4AQBCA 240 mm 320 mm 152 mm 25 ° Quadruplex Back-to-Back (QBC) Extra light / Class A Open Chrome Steel Chrome Steel 128700 lbf 274500 lbf 7.5 X 1000 rpm
71948 ACD/P4AQBCB 240 mm 320 mm 152 mm 25 ° Quadruplex Back-to-Back (QBC) Light / Class B Open Chrome Steel Chrome Steel 128700 lbf 274500 lbf 7.5 X 1000 rpm
71952 CD/P4A 260 mm 360 mm 46 mm 15 ° Single Available Open Chrome Steel Chrome Steel 63225 lbf 95625 lbf 5.3 X 1000 rpm
71952 CDGA/P4A 260 mm 360 mm 46 mm 15 ° Single Extra light / Class A Open Chrome Steel Chrome Steel 63225 lbf 95625 lbf 4.5 X 1000 rpm
71952 ACD/P4A 260 mm 360 mm 46 mm 25 ° Single Available Open Chrome Steel Chrome Steel 59625 lbf 90000 lbf 4.8 X 1000 rpm
71952 ACDGA/P4A 260 mm 360 mm 46 mm 25 ° Single Extra light / Class A Open Chrome Steel Chrome Steel 59625 lbf 90000 lbf 4.5 X 1000 rpm
71952 ACDGA/P4AL 260 mm 360 mm 46 mm 25 ° Single Extra light / Class A Open Chrome Steel Chrome Steel 59625 lbf 90000 lbf 4.5 X 1000 rpm
71952 ACDGB/P4A 260 mm 360 mm 46 mm 25 ° Single Light / Class B Open Chrome Steel Chrome Steel 59625 lbf 90000 lbf 4.5 X 1000 rpm
71952 CD/P4ADBA 260 mm 360 mm 92 mm 15 ° Duplex Back-to-Back (DB) Extra light / Class A Open Chrome Steel Chrome Steel 103950 lbf 191250 lbf 4.5 X 1000 rpm
71952 CD/P4ADBD 260 mm 360 mm 92 mm 15 ° Duplex Back-to-Back (DB) Heavy / Class D Open Chrome Steel Chrome Steel 103950 lbf 191250 lbf 4.5 X 1000 rpm
71952 CD/P4ADBB 260 mm 360 mm 92 mm 15 ° Duplex Back-to-Back (DB) Light / Class B Open Chrome Steel Chrome Steel 103950 lbf 191250 lbf 4.5 X 1000 rpm
71952 ACD/P4ADBA 260 mm 360 mm 92 mm 25 ° Duplex Back-to-Back (DB) Extra light / Class A Open Chrome Steel Chrome Steel 98100 lbf 180000 lbf 4.5 X 1000 rpm
71952 ACD/P4ALDBA 260 mm 360 mm 92 mm 25 ° Duplex Back-to-Back (DB) Extra light / Class A Open Chrome Steel Chrome Steel 98100 lbf 180000 lbf 4.5 X 1000 rpm
71952 ACD/P4ADBB 260 mm 360 mm 92 mm 25 ° Duplex Back-to-Back (DB) Light / Class B Open Chrome Steel Chrome Steel 98100 lbf 180000 lbf 4.5 X 1000 rpm
71952 ACD/P4ADBC 260 mm 360 mm 92 mm 25 ° Duplex Back-to-Back (DB) Moderate / Class C Open Chrome Steel Chrome Steel 98100 lbf 180000 lbf 4.5 X 1000 rpm
71952 ACD/P4ADGA 260 mm 360 mm 92 mm 25 ° Universal Matchable (SU) Extra light / Class A Open Chrome Steel Chrome Steel 98100 lbf 180000 lbf 4.5 X 1000 rpm
71952 ACD/P4ATBTB 260 mm 360 mm 138 mm 25 ° Triplex Back-to-Back (TBT) Light / Class B Open Chrome Steel Chrome Steel 128700 lbf 270000 lbf 4.5 X 1000 rpm
71952 ACD/P4AQBCA 260 mm 360 mm 184 mm 25 ° Quadruplex Back-to-Back (QBC) Extra light / Class A Open Chrome Steel Chrome Steel 157950 lbf 360000 lbf 4.5 X 1000 rpm
71919 CDGA/P4 280 mm 380 mm 18 mm 15 ° Single Extra light / Class A Open Chrome Steel Chrome Steel 11115 lbf 12375 lbf 7.5 X 1000 rpm
71921 ACDGA/P4 280 mm 380 mm 20 mm 25 ° Single Extra light / Class A Open Chrome Steel Chrome Steel 12870 lbf 14738 lbf 7.5 X 1000 rpm
71928 CDGA/P4 280 mm 380 mm 24 mm 15 ° Single Extra light / Class A Open Chrome Steel Chrome Steel 21510 lbf 26100 lbf 7.5 X 1000 rpm
71932 CDGA/P4 280 mm 380 mm 28 mm 15 ° Single Extra light / Class A Open Chrome Steel Chrome Steel 29250 lbf 36000 lbf 7.5 X 1000 rpm
71932 CDGA/P4B 280 mm 380 mm 28 mm 15 ° Single Extra light / Class A Open Chrome Steel Chrome Steel 29250 lbf 36000 lbf 7.5 X 1000 rpm
71934 CDGA/P4 280 mm 380 mm 28 mm 15 ° Single Extra light / Class A Open Chrome Steel Chrome Steel 29925 lbf 37350 lbf 7.5 X 1000 rpm
71936 CDGA/P4 280 mm 380 mm 33 mm 15 ° Single Extra light / Class A Open Chrome Steel Chrome Steel 37800 lbf 47700 lbf 7.5 X 1000 rpm
71936 CDGA/P4B 280 mm 380 mm 33 mm 15 ° Single Extra light / Class A Open Chrome Steel Chrome Steel 37800 lbf 47700 lbf 7.5 X 1000 rpm
71956 CD/P4A 280 mm 380 mm 46 mm 15 ° Single Available Open Chrome Steel Chrome Steel 65475 lbf 102375 lbf 4.5 X 1000 rpm
71956 CDGA/P4A 280 mm 380 mm 46 mm 15 ° Single Extra light / Class A Open Chrome Steel Chrome Steel 65475 lbf 102375 lbf 7.5 X 1000 rpm
71956 ACD/P4A 280 mm 380 mm 46 mm 25 ° Single Available Open Chrome Steel Chrome Steel 62100 lbf 96750 lbf 4 X 1000 rpm
71956 ACDGA/P4A 280 mm 380 mm 46 mm 25 ° Single Extra light / Class A Open Chrome Steel Chrome Steel 62100 lbf 96750 lbf 7.5 X 1000 rpm
71956 CD/P4ADBD 280 mm 380 mm 92 mm 15 ° Duplex Back-to-Back (DB) Heavy / Class D Open Chrome Steel Chrome Steel 106875 lbf 205875 lbf 7.5 X 1000 rpm
71956 ACD/P4ADBB 280 mm 380 mm 92 mm 25 ° Duplex Back-to-Back (DB) Light / Class B Open Chrome Steel Chrome Steel 99450 lbf 194625 lbf 7.5 X 1000 rpm
71956 ACD/P4ADGA 280 mm 380 mm 92 mm 25 ° Universal Matchable (SU) Extra light / Class A Open Chrome Steel Chrome Steel 99450 lbf 194625 lbf 7.5 X 1000 rpm
71932 ACD/P4QBCA 280 mm 380 mm 112 mm 15 ° Quadruplex Back-to-Back (QBC) Extra light / Class A Open Chrome Steel Chrome Steel 73125 lbf 137250 lbf 7.5 X 1000 rpm
71956 CD/P4ATBTA 280 mm 380 mm 138 mm 15 ° Triplex Back-to-Back (TBT) Extra light / Class A Open Chrome Steel Chrome Steel 140400 lbf 308250 lbf 7.5 X 1000 rpm
71956 ACD/P4ATBTB 280 mm 380 mm 138 mm 25 ° Triplex Back-to-Back (TBT) Light / Class B Open Chrome Steel Chrome Steel 133200 lbf 290250 lbf 7.5 X 1000 rpm
71956 ACD/P4ATGB 280 mm 380 mm 138 mm 25 ° Universal Matchable (SU) Light / Class B Open Chrome Steel Chrome Steel 133200 lbf 290250 lbf 7.5 X 1000 rpm
71956 ACD/P4AQBCC 280 mm 380 mm 184 mm 25 ° Quadruplex Back-to-Back (QBC) Moderate / Class C Open Chrome Steel Chrome Steel 163800 lbf 389250 lbf 7.5 X 1000 rpm
71960 CDMA/P4A 300 mm 420 mm 56 mm 15 ° Single Available Open Chrome Steel Chrome Steel 83475 lbf 135000 lbf 4.3 X 1000 rpm
71960 ACDMA/P4A 300 mm 420 mm 56 mm 25 ° Single Available Open Chrome Steel Chrome Steel 78975 lbf 126000 lbf 3.8 X 1000 rpm
71964 CDMA/P4A 320 mm 440 mm 56 mm 15 ° Single Available Open Chrome Steel Chrome Steel 84825 lbf 139500 lbf 4 X 1000 rpm
71964 ACDMA/P4A 320 mm 440 mm 56 mm 25 ° Single Available Open Chrome Steel Chrome Steel 78975 lbf 131625 lbf 3.6 X 1000 rpm
71968 CDMA/P4A 340 mm 460 mm 56 mm 15 ° Single Available Open Chrome Steel Chrome Steel 87750 lbf 150750 lbf 3.8 X 1000 rpm
71968 ACDMA/P4A 340 mm 460 mm 56 mm 25 ° Single Available Open Chrome Steel Chrome Steel 81900 lbf 144000 lbf 3.4 X 1000 rpm
71972 CDMA/P4A 360 mm 480 mm 56 mm 15 ° Single Available Open Chrome Steel Chrome Steel 89325 lbf 159750 lbf 3.6 X 1000 rpm
71972 ACDMA/P4A 360 mm 480 mm 56 mm 25 ° Single Available Open Chrome Steel Chrome Steel 83475 lbf 150750 lbf 3.2 X 1000 rpm
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