ZWA
Spherical Roller Bearing
BORE 670-800mm
Spherical roller bearing has the feature of self-aligning and are designed to bear heavy radial loads as well as heavy axial load in both directions.
ZWA’s spherical roller bearings consists of mainly four cage types: CA, CC and MB and MA.
Basic Type
the products include
| Spherical Roller Bearing | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| d 670-800mm | ||||||||||||||||||||||
| Basic Size | Basic load rating | Fatigue load limit | Rated Speed | Designation(Design) | Dimensions | Abutment and chamfer dimensions | Calculation cefficient | |||||||||||||||
| d | D | B | dynamic | static | Pu | Reference Speed | Limit Speed | Cylindrical bore | Tapered bore | d2～ | D1 ～ | b | k | r1.2 min | da min | Da max | ra max | e | Y1 | Y2 | Yo | |
| C | Co | |||||||||||||||||||||
| mm | kN | kN | r/min | - | mm | - | ||||||||||||||||
| 670 | 820 | 112 | 2250 | 6400 | 440 | 360 | 700 | 238/670CAMA/W20 | 238/670CAKMA/W20 | 720 | 778 | - | 9 | 4 | 685 | 805 | 3 | 0,11 | 6,1 | 9,1 | 6,3 | |
| 670 | 820 | 150 | 3110 | 9500 | 655 | 360 | 700 | 248/670CAMA/W20 | - | 718 | 772 | - | 9 | 4 | 685 | 805 | 3 | 0,16 | 4,2 | 6,3 | 4 | |
| 670 | 900 | 170 | 5000 | 10800 | 695 | 360 | 670 | 239/670CA/W33 | 239/670MB/W33 | 239/670CAK/W33 | 749 | 835 | 22,3 | 12 | 6 | 693 | 877 | 5 | 0,17 | 4 | 5,9 | 4 |
| 670 | 980 | 230 | 7650 | 14600 | 915 | 340 | 600 | 230/670CA/W33 | 230/670MB/W33 | 230/670CAK/W33 | 770 | 892 | 22,3 | 12 | 7,5 | 698 | 952 | 6 | 0,21 | 3,2 | 4,8 | 3,2 |
| 670 | 980 | 308 | 10000 | 20400 | 1320 | 300 | 500 | 240/670ECA/W33 | 240/670MB/W33 | 240/670ECAK30/W33 | 756 | 866 | 22,3 | 12 | 7,5 | 698 | 952 | 6 | 0,28 | 2,4 | 3,6 | 2,5 |
| 670 | 1090 | 336 | 10900 | 22400 | 1370 | 240 | 500 | 231/670CA/W33 | 231/670MB/W33 | 231/670CAK/W33 | 802 | 959 | 22,3 | 12 | 7,5 | 702 | 1058 | 6 | 0,30 | 2,3 | 3,4 | 2,2 |
| 670 | 1090 | 412 | 13800 | 29000 | 1760 | 200 | 400 | 241/670ECA/W33 | 241/670MB/W33 | 241/670ECAK30/W33 | 782 | 942 | 22,3 | 12 | 7,5 | 702 | 1058 | 6 | 0,37 | 1,8 | 2,7 | 1,8 |
| 670 | 1220 | 438 | 15400 | 30500 | 1700 | 220 | 360 | 232/670CA/W33 | 232/670MB/W33 | 232/670CAK/W33 | 830 | 1028 | 22,3 | 12 | 12 | 718 | 1172 | 10 | 0,35 | 19 | 2,9 | 1,8 |
| 710 | 870 | 118 | 2580 | 7500 | 500 | 340 | 670 | 238/710CAMA/W20 | - | 762 | 826 | - | 12 | 4 | 725 | 855 | 3 | 0,11 | 6,1 | 9,1 | 6,3 | |
| 710 | 950 | 180 | 5600 | 12000 | 765 | 340 | 600 | 239/710CA/W33 | 239/710MB/W33 | 239/710CAK/W33 | 788 | 882 | 22,3 | 12 | 6 | 733 | 927 | 5 | 0,17 | 4 | 5,9 | 4 |
| 710 | 950 | 243 | 6800 | 15600 | 930 | 300 | 500 | 249/710CA/W33 | 249/710MB/W33 | 249/710CAK30/W33 | 792 | 868 | 22,3 | 12 | 6 | 733 | 927 | 5 | 0,22 | 3 | 4,6 | 2,8 |
| 710 | 1030 | 236 | 8300 | 16300 | 1000 | 320 | 560 | 230/710CA/W33 | 230/710MB/W33 | 230/710CAK/W33 | 814 | 941 | 22,3 | 12 | 7,5 | 738 | 1002 | 6 | 0,21 | 3,2 | 4,8 | 3,2 |
| 710 | 1030 | 315 | 10600 | 22800 | 1370 | 280 | 450 | 240/710ECA/W33 | 240/710MB/W33 | 240/710ECAK30/W33 | 807 | 918 | 22,3 | 12 | 7,5 | 738 | 1002 | 6 | 0,27 | 2,5 | 3,7 | 2,5 |
| 710 | 1150 | 345 | 12200 | 26000 | 1530 | 240 | 450 | 231/710CA/W33 | 231/710MB/W33 | 231/710CAK/W33 | 850 | 1017 | 22,3 | 12 | 9,5 | 750 | 1110 | 8 | 0,28 | 2,4 | 3,6 | 2,5 |
| 710 | 1150 | 438 | 15200 | 32500 | 1900 | 190 | 380 | 241/710ECA/W33 | 241/710MB/W33 | 241/710ECAK30/W33 | 826 | 989 | 22,3 | 12 | 9,5 | 750 | 1110 | 8 | 0,37 | 1,8 | 2,7 | 1,8 |
| 710 | 1280 | 450 | 17600 | 34500 | 2000 | 200 | 320 | 232/710CA/W33 | 232/710MB/W33 | 232/710CAK/W33 | 875 | 1097 | 22,3 | 12 | 12 | 758 | 1232 | 10 | 0,35 | 1,9 | 2,9 | 1,8 |
| 750 | 920 | 128 | 2930 | 8500 | 550 | 320 | 600 | 238/750CAMA/W20 | 238/750CAKMA/W20 | 807 | 873 | - | 12 | 5 | 768 | 902 | 4 | 0,11 | 6,1 | 9,1 | 6,3 | |
| 750 | 1000 | 185 | 6000 | 13200 | 815 | 320 | 560 | 239/750CA/W33 | 239/750MB/W33 | 239/750CAK/W33 | 832 | 930 | 22,3 | 12 | 6 | 773 | 977 | 5 | 0,16 | 4,2 | 6,3 | 4 |
| 750 | 1000 | 250 | 7650 | 18000 | 1100 | 280 | 480 | 249/750CA/W33 | 249/750MB/W33 | 249/750CAK30/W33 | 830 | 916 | 22,3 | 12 | 6 | 773 | 977 | 5 | 0,22 | 3 | 4,6 | 2,8 |
| 750 | 1090 | 250 | 9650 | 18600 | 1100 | 300 | 530 | 230/750CA/W33 | 230/750MB/W33 | 230/750CAK/W33 | 860 | 998 | 22,3 | 12 | 7,5 | 778 | 1062 | 6 | 0,21 | 3,2 | 4,8 | 3,2 |
| 750 | 1090 | 335 | 11800 | 25000 | 1460 | 260 | 430 | 240/750ECA/W33 | 240/750MB/W33 | 240/750ECAK30/W33 | 853 | 970 | 22,3 | 12 | 7,5 | 778 | 1062 | 6 | 0,28 | 2,4 | 3,6 | 2,5 |
| 750 | 1220 | 365 | 13800 | 29000 | 1660 | 220 | 430 | 231/750CA/W33 | 231/750MB/W33 | 231/750CAK/W33 | 900 | 1080 | 22,3 | 12 | 9,5 | 790 | 1180 | 8 | 0,28 | 2,4 | 3,6 | 2,5 |
| 750 | 1220 | 475 | 17300 | 37500 | 2160 | 180 | 360 | 241/750ECA/W33 | 241/750MB/W33 | 241/750ECAK30/W33 | 875 | 1050 | 22,3 | 12 | 9,5 | 790 | 1180 | 8 | 0,37 | 1,8 | 2,7 | 1,8 |
| 750 | 1360 | 475 | 18700 | 36500 | 2120 | 190 | 300 | 232/750CAF/W33 | 232/750MB/W33 | 232/750CAKF/W33 | 938 | 1163 | 22,3 | 12 | 15 | 808 | 1302 | 12 | 0,35 | 1,9 | 2,9 | 1,8 |
| 800 | 980 | 180 | 4140 | 12900 | 830 | 300 | 560 | 248/800CAMA/W20 | 248/800CAK30MA/W20 | 862 | 921 | - | 12 | 5 | 818 | 962 | 4 | 0,15 | 4,5 | 6,7 | 4,5 | |
| 800 | 1060 | 195 | 6400 | 14300 | 880 | 300 | 530 | 239/800CA/W33 | 239/800MB/W33 | 239/800CAK/W33 | 885 | 986 | 22,3 | 12 | 6 | 823 | 1037 | 5 | 0,16 | 4,2 | 6,3 | 4 |
| 800 | 1060 | 258 | 8000 | 19300 | 1060 | 260 | 430 | 249/800CA/W33 | 249/800MB/W33 | 249/800CAK30/W33 | 883 | 973 | 22,3 | 12 | 6 | 823 | 1037 | 5 | 0,21 | 3,2 | 4,8 | 3,2 |
| 800 | 1150 | 258 | 10000 | 20000 | 1160 | 280 | 480 | 230/800CA/W33 | 230/800MB/W33 | 230/800CAK/W33 | 915 | 1053 | 22,3 | 12 | 7,5 | 828 | 1122 | 6 | 0,20 | 3,4 | 5 | 3,2 |
| 800 | 1150 | 345 | 12900 | 28500 | 1730 | 240 | 400 | 240/800ECA/W33 | 240/800MB/W33 | 240/800ECAK30/W33 | 908 | 1028 | 22,3 | 12 | 7,5 | 828 | 1122 | 6 | 0,27 | 2,5 | 3,7 | 2,5 |
| 800 | 1280 | 375 | 14800 | 31500 | 1800 | 200 | 400 | 231/800CA/W33 | 231/800MB/W33 | 231/800CAK/W33 | 950 | 1141 | 22,3 | 12 | 9,5 | 840 | 1240 | 8 | 0,28 | 2,4 | 3,6 | 2,5 |
| 800 | 1280 | 475 | 18400 | 40500 | 2320 | 170 | 320 | 241/800ECA/W33 | 241/800MB/W33 | 241/800ECAK30/W33 | 930 | 1111 | 22,3 | 12 | 9,5 | 840 | 1240 | 8 | 0,35 | 1,9 | 2,9 | 1,8 |
