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 | |
| 241/500 MB/W33 | 241/500 MBK30/W33 | 500 | 830 | 325 | 10163 | 16920 | 330 | 700 |
| 231/500 MB/W33 | 231/500 MBK/W33 | 500 | 830 | 264 | 7975 | 12840 | 620 | 580 |
| 240/500 MB/W33 | 240/500 MBK30/W33 | 500 | 720 | 218 | 5876 | 10940 | 600 | 295 |
| 230/500 MB/W33 | 230/500 MBK/W33 | 500 | 720 | 167 | 4415 | 7710 | 800 | 225 |
| 239/500 MB/W33 | 239/500 MBK/W33 | 500 | 670 | 128 | 2960 | 5910 | 820 | 130 |
| 238/500 MB/W33 | 238/500 MBK/W33 | 500 | 620 | 90 | 1451 | 4035 | 62 | |
| 23296 MB/W33 | 23296 MBK/W33 | 480 | 870 | 310 | 9691 | 14750 | 470 | 800 |
| 24196 MB/W33 | 24196 MBK30/W33 | 480 | 790 | 308 | 9062 | 15520 | 340 | 605 |
| 23196 MB/W33 | 23196 MBK/W33 | 480 | 790 | 248 | 7335 | 11950 | 660 | 485 |
| 24096 MB/W33 | 24096 MBK30/W33 | 480 | 700 | 218 | 5421 | 10300 | 660 | 285 |
| 23096 MB/W33 | 23096 MBK/W33 | 480 | 700 | 165 | 3966 | 6770 | 820 | 215 |
| 23996 MB/W33 | 23996 MBK/W33 | 480 | 650 | 128 | 2949 | 5630 | 850 | 125 |
| 23896 MB/W33 | 23896 MBK/W33 | 480 | 600 | 90 | 1422 | 3790 | 61 | |
| 23292 MB/W33 | 23292 MBK/W33 | 460 | 830 | 296 | 8837 | 13497 | 500 | 695 |
| 24192 MB/W33 | 24192 MBK30/W33 | 460 | 760 | 300 | 8564 | 14350 | 380 | 560 |
| 23192 MB/W33 | 23192 MBK/W33 | 460 | 760 | 240 | 6716 | 10660 | 680 | 440 |
| 24092 MB/W33 | 24092 MBK30/W33 | 460 | 680 | 218 | 5359 | 9990 | 710 | 275 |
| 23092 MB/W33 | 23092 MBK/W33 | 460 | 680 | 163 | 4142 | 6820 | 850 | 205 |
| 23992 MB/W33 | 23992 MBK/W33 | 460 | 620 | 118 | 2521 | 4930 | 860 | 105 |
| 24892 MB/W33 | 24892 MBK30/W33 | 460 | 580 | 118 | 2042 | 4830 | 990 | 75.5 |
