The MB-type self-aligning roller bearing features a double-row, symmetrical barrel-shaped roller configuration, fitted with a two-piece, solid, machined brass cage. Designed with an inner ring guide, the inner ring is fitted with a central rib to ensure stable positioning of the rollers during operation. As the MB type relies on the inner ring to guide the cage, it operates more smoothly and offers superior high-speed stability compared to the MA type; compared to the CA type, the split cage provides better heat dissipation. They are widely used in rolling mills, large fans, cement plant equipment, conveyors, paper-making machinery and heavy-duty gearboxes.
| Bearing model number | Basic Dimensions（mm） | Basic load （KN） |
Rated speed(rpm) | Bearing weight | ||||
|---|---|---|---|---|---|---|---|---|
| Cylindrical hole | Conical hole | d inner diameter |
D outer diameter |
B thickness |
Dynamic load Cr |
Static load Cor |
Limiting Speed | |
| 23156 MB/W33 | 23156 MBK30/W33 | 280 | 460 | 146 | 2730 | 4208 | 1170 | 97 |
| 24056 MB/W33 | 24056 MBK/W33 | 280 | 420 | 140 | 2234 | 3760 | 1250 | 69.5 |
| 23056 MB/W33 | 23056 MBK/W33 | 280 | 420 | 106 | 1812 | 2820 | 1400 | 52.5 |
| 24956 MB/W33 | 280 | 380 | 100 | 1060 | 2455 | 34.5 | ||
| 23956 MB/W33 | 23956 MBK/W33 | 280 | 380 | 75 | 1022 | 1726 | 1500 | 25 |
| 23856 MB/W33 | 23856 MBK/W33 | 280 | 350 | 52 | 515 | 1189 | - | 12 |
| 22352 MB/W33 | 22352 MBK/W33 | 260 | 540 | 165 | 3610 | 4470 | 987 | 190 |
| 23252 MB/W33 | 23252 MBK/W33 | 260 | 480 | 174 | 3407 | 4720 | 1029 | 140 |
| 22252 MB/W33 | 22252 MBK/W33 | 260 | 480 | 130 | 2721 | 3520 | 1420 | 110 |
| 24152 MB/W33 | 24152 MBK30/W33 | 260 | 440 | 180 | 3076 | 4730 | 810 | 110 |
| 23152 MB/W33 | 23152 MBK/W33 | 260 | 440 | 144 | 2521 | 3694 | 1250 | 90.5 |
| 24052 MB/W33 | 24052 MBK30/W33 | 260 | 400 | 140 | 2165 | 3440 | 1200 | 65.5 |
| 23052 MB/W33 | 23052 MBK/W33 | 260 | 400 | 104 | 1682 | 2520 | 1500 | 48.5 |
| 24952 MB/W33 | 260 | 360 | 100 | 1122 | 2453 | 32 | ||
| 23952 MB/W33 | 23952 MBK/W33 | 260 | 360 | 75 | 1038 | 1790 | 1700 | 23.5 |
| 23852 MB/W33 | 23852 MBK/W33 | 260 | 320 | 45 | 379 | 915 | 8.05 | |
| 22348 MB/W33 | 22348 MBK/W33 | 240 | 500 | 155 | 3194 | 3940 | 1140 | 155 |
| 23248 MB/W33 | 23248 MBK/W33 | 240 | 440 | 160 | 3033 | 4250 | 1140 | 110 |
| 22248 MB/W33 | 22248 MBK/W33 | 240 | 440 | 120 | 2245 | 2940 | 1600 | 83 |
| 24148 MB/W33 | 24148 MBK30/W33 | 240 | 400 | 160 | 2440 | 3880 | 940 | 83 |
