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. | ||
| ✉️ | 21318 MB/W33 | 21318 MBK/W33 | 90 | 190 | 43 | 392 | 441 | 3300 | 4100 | 6.1 |
| ✉️ | 22318 MB/W33 | 22318 MBK/W33 | 90 | 190 | 64 | 638 | 690 | 2400 | 3200 | 9.05 |
| ✉️ | 22219 MB/W33 | 22219 MBK/W33 | 95 | 170 | 43 | 387 | 446 | 3200 | 4200 | 4.15 |
| ✉️ | 21319 MB/W33 | 21319 MBK/W33 | 95 | 200 | 45 | 430 | 488 | 3100 | 4000 | 7.05 |
| ✉️ | 22319 MB/W33 | 22319 MBK/W33 | 95 | 200 | 67 | 693 | 762 | 2400 | 2900 | 10.5 |
| ✉️ | 24020 MB/W33 | 24020 MBK30/W33 | 100 | 150 | 50 | 290 | 408 | 2600 | 3500 | 3.15 |
| ✉️ | 23120 MB/W33 | 23120 MBK/W33 | 100 | 165 | 52 | 391 | 483 | 2800 | 3400 | 4.55 |
| ✉️ | 24120 MB/W33 | 24120 MBK30/W33 | 100 | 165 | 65 | 461 | 631 | 2200 | 2800 | 5.65 |
| ✉️ | 22220 MB/W33 | 22220 MBK/W33 | 100 | 180 | 46 | 431 | 482 | 3100 | 4000 | 4.9 |
| ✉️ | 23220 MB/W33 | 23220 MBK/W33 | 100 | 180 | 60.3 | 502 | 590 | 2200 | 3000 | 6.85 |
| ✉️ | 21320 MB/W33 | 21320 MBK/W33 | 100 | 215 | 47 | 432 | 486 | 2700 | 3850 | 8.6 |
| ✉️ | 22320 MB/W33 | 22320 MBK/W33 | 100 | 215 | 73 | 860 | 948 | 2200 | 2700 | 13.5 |
| ✉️ | 23022 MB/W33 | 23022 MBK/W33 | 110 | 170 | 45 | 330 | 432 | 3100 | 3800 | 3.8 |
| ✉️ | 24022 MB/W33 | 24022 MBK30/W33 | 110 | 170 | 60 | 439 | 619 | 2200 | 3100 | 5 |
| ✉️ | 23122 MB/W33 | 23122 MBK/W33 | 110 | 180 | 56 | 452 | 578 | 2600 | 3200 | 5.75 |
| ✉️ | 24122 MB/W33 | 24122 MBK30/W33 | 110 | 180 | 69 | 545 | 741 | 1800 | 2700 | 7.1 |
| ✉️ | 22222 MB/W33 | 22222 MBK/W33 | 110 | 200 | 53 | 577 | 629 | 2800 | 3400 | 7 |
| ✉️ | 23222 MB/W33 | 23222 MBK/W33 | 110 | 200 | 69.8 | 625 | 759 | 2000 | 2800 | 9.85 |
| ✉️ | 22322 MB/W33 | 22322 MBK/W33 | 110 | 240 | 80 | 985 | 1100 | 1800 | 2500 | 18.5 |
| ✉️ | 23024 MB/W33 | 23024 MBK/W33 | 120 | 180 | 46 | 366 | 508 | 3000 | 3500 | 4.2 |