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.


MB Series Self-Aligning Roller BearingsSelf-aligning roller bearings

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.
✉️ 230/850 MB/W33 230/850 MBK/W33 850 1220 272 11247 21180 220 400 1050
✉️ 240/850 MB/W33 240/850 MBK30/W33 850 1220 365 15297 31230 180 310 1410
✉️ 231/850 MB/W33 231/850 MBK/W33 850 1360 400 23963 45042 121 164 2200
✉️ 241/850 MB/W33 241/850 MBK30/W33 850 1360 500 28031 48742 145 229 2770
✉️ 248/900 MB/W33 248/900 MBK30/W33 900 1090 190 5411 15160 220 430 370
✉️ 239/900 MB/W33 239/900 MBK/W33 900 1180 206 7621 16920 220 400 605
✉️ 230/900 MB/W33 230/900 MBK/W33 900 1280 280 11799 23040 200 350 1200
✉️ 240/900 MB/W33 240/900 MBK30/W33 900 1280 375 16375 34200 170 300 1570
✉️ 241/900 MB/W33 241/900 MBK30/W33 900 1420 515 25772 48900 110 160 3350
✉️ 239/950 MB/W33 239/950 MBK/W33 950 1250 224 8669 19320 200 380 755
✉️ 249/950 MB/W33 249/950 MBK30/W33 950 1250 300 10561 25480 160 290 1020
✉️ 230/950 MB/W33 230/950 MBK/W33 950 1360 300 14561 28030 180 340 1450
✉️ 240/950 MB/W33 240/950 MBK30/W33 950 1360 412 17680 38310 150 270 1990
✉️ 241/950 MB/W33 241/950 MBK30/W33 950 1500 545 28438 54290 100 140 3540
✉️ 238/1000 MB/W33 238/1000 MBK/W33 1000 1220 165 5465 14270 200 340 410
✉️ 249/1000 MB/W33 249/1000 MBK30/W33 1000 1320 315 11835 28660 150 280 1200
✉️ 230/1000 MB/W33 230/1000 MBK/W33 1000 1420 308 14311 30350 160 320 1600
✉️ 240/1000 MB/W33 240/1000 MBK30/W33 1000 1420 412 18907 40090 150 240 2140
✉️ 231/1000 MB/W33 231/1000 MBK/W33 1000 1580 462 25356 47060 130 250 3500
✉️ 241/1000 MB/W33 241/1000 MBK30/W33 1000 1580 580 31021 61860 90 130 4300
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