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 | |
| 24176 MB/W33 | 24176 MBK30/W33 | 380 | 620 | 243 | 5854 | 9730 | 470 | 300 |
| 23176 MB/W33 | 23176 MBK/W33 | 380 | 620 | 194 | 4509 | 7000 | 850 | 230 |
| 24076 MB/W33 | 24076 MBK30/W33 | 380 | 560 | 180 | 3758 | 6680 | 810 | 150 |
| 23076 MB/W33 | 23076 MBK/W33 | 380 | 560 | 135 | 2888 | 4920 | 1040 | 115 |
| 23976 MB/W33 | 23976 MBK/W33 | 380 | 520 | 106 | 1990 | 3790 | 1050 | 69 |
| 23272 MB/W33 | 23272 MBK/W33 | 360 | 650 | 232 | 5694 | 8250 | 640 | 335 |
| 22272 MB/W33 | 22272 MBK/W33 | 360 | 650 | 170 | 4442 | 6080 | 760 | 255 |
| 24172 MB/W33 | 24172 MBK30/W33 | 360 | 600 | 243 | 5828 | 9290 | 530 | 280 |
| 23172 MB/W33 | 23172 MBK/W33 | 360 | 600 | 192 | 4511 | 6920 | 860 | 220 |
| 24072 MB/W33 | 24072 MBK30/W33 | 360 | 540 | 180 | 3757 | 6430 | 860 | 145 |
| 23072 MB/W33 | 23072 MBK/W33 | 360 | 540 | 134 | 2827 | 4790 | 1040 | 110 |
| 23972 MB/W33 | 23972 MBK/W33 | 360 | 480 | 90 | 1470 | 2710 | 1160 | 46 |
| 23872 MB/W33 | 23872 MBK/W33 | 360 | 440 | 60 | 701 | 1866 | 20 | |
| 23268 MB/W33 | 23268 MBK/W33 | 340 | 620 | 224 | 5341 | 7720 | 690 | 295 |
| 24168 MB/W33 | 24168 MBK30/W33 | 340 | 580 | 243 | 5509 | 8540 | 540 | 280 |
| 23168 MB/W33 | 23168 MBK/W33 | 340 | 580 | 190 | 4368 | 6670 | 860 | 210 |
| 24068 MB/W33 | 24068 MBK30/W33 | 340 | 520 | 180 | 3559 | 6160 | 950 | 140 |
| 23068 MB/W33 | 23068 MBK/W33 | 340 | 520 | 133 | 2813 | 4480 | 1110 | 105 |
| 23968 MB/W33 | 23968 MBK/W33 | 340 | 460 | 90 | 1485 | 2773 | 1200 | 45.5 |
| 23868 MB/W33 | 340 | 420 | 60 | 699 | 1759 | 18.5 | ||
