MB Series Spherical Roller Bearings feature a symmetrical barrel roller design combined with a solid brass cage, delivering exceptional load capacity, strength, and alignment compensation. Engineered for superior durability and thermal stability, these bearings ensure reliable performance under heavy loads, shock, and harsh operating conditions. They are ideal for demanding industrial applications such as mining, metallurgy, construction, and heavy machinery, where high strength, long service life, and consistent efficiency are critical.
MB machined brass cage ensures high rigidity, precise roller guidance, and strong durability
W33 lubrication groove improves lubrication flow and cooling efficiency
Excellent radial and axial load capacity for heavy-load and continuous operations
Stable performance under vibration, shock, and heavy-load conditions
Suitable for mining machinery, steel mills, cement plants, paper machinery, and other heavy-duty industrial applications
| Bore diameter | 200 mm |
| Outside diameter | 420 mm |
| Width | 138 mm |
| Basic dynamic load rating | 1490 kN |
| Basic static load rating | 2720 kN |
| Grease Reference speed | 630 r/min |
| Oil Limiting speed | 800 r/min |
| Bore type | Cylindrical |
| For Load Direction | Radial |
| Number of rows | Double row |
| Radial internal clearance | C0 |
| Tolerance class for dimensions | Nomal |
| Tolerance class for run-out | P6 |
| Seal type | Without |
| Lubricant | None |
| Relubrication feature | Without |
| Product net weight | 94 kg |
| Roller material | Chrome steel |
| Ring Material | Chrome steel |
| Cage | Brass |
The JRZC 22340MB/W33 spherical roller bearing is engineered for heavy-load, high-impact, and continuous-duty industrial applications that require high stability, reliable performance, and long service life. Featuring the MB one-piece machined brass cage, this bearing provides excellent rigidity, precise roller guidance, and strong durability under severe working conditions. The W33 lubrication groove enhances grease circulation and cooling efficiency, supporting smooth operation in high-load and high-temperature environments. This bearing is widely used in mining machinery, steel production lines, cement mills, paper mills, and other heavy-duty industrial systems.
Q1: What benefits does the MB brass cage provide?
A1: The MB one-piece machined brass cage delivers high strength, precise roller guidance, and excellent durability in harsh industrial conditions.
Q2: How does the W33 lubrication groove enhance performance?
A2: It improves lubricant distribution, enhances cooling efficiency, and extends the bearing’s service life.
Q3: Is the 22340MB/W33 suitable for continuous heavy-load operations?
A3: Yes, it is designed for high-load, high-impact, and long-duty-cycle industrial equipment.
Q4: Which industries commonly use the 22340MB/W33?
A4: Mining machinery, steel production equipment, cement mills, paper mills, and other heavy-duty industrial systems.