MB Series Self-Aligning Roller BearingsSelf-aligning roller bearings
MB-type self-aligning roller bearings feature a symmetrical barrel-shaped roller design and are equipped with an inner ring-guided double-row solid brass cage. With a robust structure and exceptional rigidity, they offer excellent self-aligning capabilities, effectively compensating for shaft deflection and misalignment errors. These bearings can withstand extremely high radial loads and bidirectional axial loads, while also providing outstanding resistance to shock, vibration, and wear, ensuring smooth and reliable operation. and excellent high-temperature resistance. The cage of this bearing type boasts high strength and good toughness, making it resistant to deformation and fracture under severe operating conditions involving heavy loads, frequent impacts, and intense vibrations. Compared to the MA type, its inner ring guidance method is more targeted, ensuring more precise roller positioning and more stable lubrication during operation. It is suitable for working environments with extremely high requirements for bearing reliability and service life, and is widely used in large-scale industrial equipment subject to strong impacts and heavy loads, such as mining crushers, large vibrating screens, metallurgical rolling mills, heavy-duty gear reducers, cement equipment, and port cranes—all of which are subject to high impact and heavy loads. Thanks to its exceptional structural strength and durable operational characteristics, it has become a critical bearing component for ensuring continuous and stable equipment operation under extreme conditions.
Product Parameters
| Inquiry | Bearing Designation | Basic Dimensions (mm) | Rated Load (kN) | Limiting Speed (r/min) | Weight ≈kg |
|||||
|---|---|---|---|---|---|---|---|---|---|---|
| Cylindrical Bore | Tapered Bore | d | D | B | C Dynamic | C0 Static | Ref. | Lim. | ||
| ✉️ | 23868 MB/W33 | 340 | 420 | 60 | 699 | 1759 | 740 | 18.5 | ||
| ✉️ | 23968 MB/W33 | 23968 MBK/W33 | 340 | 460 | 90 | 1485 | 2773 | 1200 | 1200 | 45.5 |
| ✉️ | 23068 MB/W33 | 23068 MBK/W33 | 340 | 520 | 133 | 2813 | 4480 | 910 | 1110 | 105 |
| ✉️ | 24068 MB/W33 | 24068 MBK30/W33 | 340 | 520 | 180 | 3559 | 6160 | 700 | 950 | 140 |
| ✉️ | 23168 MB/W33 | 23168 MBK/W33 | 340 | 580 | 190 | 4368 | 6670 | 740 | 860 | 210 |
| ✉️ | 24168 MB/W33 | 24168 MBK30/W33 | 340 | 580 | 243 | 5509 | 8540 | 400 | 540 | 280 |
| ✉️ | 23268 MB/W33 | 23268 MBK/W33 | 340 | 620 | 224 | 5341 | 7720 | 500 | 690 | 295 |
| ✉️ | 23872 MB/W33 | 23872 MBK/W33 | 360 | 440 | 60 | 701 | 1866 | 20 | ||
| ✉️ | 23972 MB/W33 | 23972 MBK/W33 | 360 | 480 | 90 | 1470 | 2710 | 1100 | 1160 | 46 |
| ✉️ | 23072 MB/W33 | 23072 MBK/W33 | 360 | 540 | 134 | 2827 | 4790 | 890 | 1040 | 110 |
| ✉️ | 24072 MB/W33 | 24072 MBK30/W33 | 360 | 540 | 180 | 3757 | 6430 | 640 | 860 | 145 |
| ✉️ | 23172 MB/W33 | 23172 MBK/W33 | 360 | 600 | 192 | 4511 | 6920 | 690 | 860 | 220 |
| ✉️ | 24172 MB/W33 | 24172 MBK30/W33 | 360 | 600 | 243 | 5828 | 9290 | 366 | 530 | 280 |
| ✉️ | 22272 MB/W33 | 22272 MBK/W33 | 360 | 650 | 170 | 4442 | 6080 | 580 | 760 | 255 |
| ✉️ | 23272 MB/W33 | 23272 MBK/W33 | 360 | 650 | 232 | 5694 | 8250 | 470 | 640 | 335 |
| ✉️ | 23976 MB/W33 | 23976 MBK/W33 | 380 | 520 | 106 | 1990 | 3790 | 1000 | 1050 | 69 |
| ✉️ | 23076 MB/W33 | 23076 MBK/W33 | 380 | 560 | 135 | 2888 | 4920 | 840 | 1040 | 115 |
| ✉️ | 24076 MB/W33 | 24076 MBK30/W33 | 380 | 560 | 180 | 3758 | 6680 | 600 | 810 | 150 |
| ✉️ | 23176 MB/W33 | 23176 MBK/W33 | 380 | 620 | 194 | 4509 | 7000 | 520 | 850 | 230 |
| ✉️ | 24176 MB/W33 | 24176 MBK30/W33 | 380 | 620 | 243 | 5854 | 9730 | 330 | 470 | 300 |