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.
✉️ 232/710 MB/W33 232/710 MBK/W33 710 1280 450 21348 33960 180 280 2610
✉️ 238/750 MB/W33 238/750 MBK/W33 750 920 128 3387 8460 310 520 185
✉️ 239/750 MB/W33 239/750 MBK/W33 750 1000 185 6164 13060 290 480 420
✉️ 249/750 MB/W33 249/750 MBK30/W33 750 1000 250 7757 17930 260 410 560
✉️ 230/750 MB/W33 230/750 MBK/W33 750 1090 250 9901 18290 260 470 795
✉️ 240/750 MB/W33 240/750 MBK30/W33 750 1090 335 12054 24630 220 380 1070
✉️ 231/750 MB/W33 231/750 MBK/W33 750 1220 365 16356 28930 200 380 1700
✉️ 241/750 MB/W33 241/750 MBK30/W33 750 1220 475 20291 37230 140 190 2100
✉️ 232/750 MB/W33 232/750 MBK/W33 750 1360 475 21420 36390 170 260 3050
✉️ 248/800 MB/W33 248/800 MBK30/W33 800 980 180 4811 12720 300 500 300
✉️ 239/800 MB/W33 239/800 MBK/W33 800 1060 195 6490 14270 250 460 470
✉️ 249/800 MB/W33 249/800 MBK30/W33 800 1060 258 8123 19260 220 370 640
✉️ 230/800 MB/W33 230/800 MBK/W33 800 1150 258 10257 19790 230 420 895
✉️ 240/800 MB/W33 240/800 MBK30/W33 800 1150 345 13547 28370 200 340 1200
✉️ 231/800 MB/W33 231/800 MBK/W33 800 1280 375 18285 31400 180 350 1920
✉️ 241/800 MB/W33 241/800 MBK30/W33 800 1280 475 21893 40380 130 180 2300
✉️ 232/800 MB/W33 232/800 MBK/W33 800 1420 488 25160 42410 160 250 3280
✉️ 238/850 MB/W33 238/850 MBK/W33 850 1030 136 3880 9980 240 470 240
✉️ 239/850 MB/W33 239/850 MBK/W33 850 1120 200 7031 15420 240 410 560
✉️ 249/850 MB/W33 249/850 MBK30/W33 850 1120 272 9290 22600 200 360 740
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