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 offers high rigidity, superior roller stability, and impact resistance
• C4 internal clearance supports high-temperature heavy-load applications with enhanced expansion capability
• W33 lubrication groove improves cooling efficiency and lubrication distribution
• Excellent radial and axial load performance suitable for severe industrial shock conditions
• Ideal for mining, steel production, cement plants, paper machinery, and other heavy-duty industrial systems
| Bore diameter | 170 mm |
| Outside diameter | 360 mm |
| Width | 120 mm |
| Basic dynamic load rating | 1150 kN |
| Basic static load rating | 2060 kN |
| Grease Reference speed | 750 r/min |
| Oil Limiting speed | 950 r/min |
| Bore type | Cylindrical |
| For Load Direction | Radial |
| Number of rows | Double row |
| Radial internal clearance | C4 |
| Tolerance class for dimensions | Nomal |
| Tolerance class for run-out | P6 |
| Seal type | Without |
| Lubricant | None |
| Relubrication feature | Without |
| Product net weight | 60 kg |
| Roller material | Chrome steel |
| Ring Material | Chrome steel |
| Cage | Brass |
The JRZC 22334MB/W33C4 spherical roller bearing is engineered for extremely heavy-duty industrial applications requiring high load capacity, superior thermal tolerance, and long-term operational reliability. Featuring the MB one-piece machined brass cage, this model ensures excellent rigidity, stable roller guidance, and exceptional durability under severe shock and continuous heavy-load conditions. The C4 internal clearance provides additional space to accommodate thermal expansion during high-temperature operations, while the W33 lubrication groove enhances lubricant flow, cooling performance, and service life. This bearing is widely used in mining machinery, steel mills, cement equipment, paper mills, and other demanding heavy-industry environments.
FAQ
Q1: Why is the C4 internal clearance beneficial for this bearing?
A1: C4 clearance provides extra internal room for heat expansion, making it ideal for high-temperature and heavy-load environments.
Q2: What advantages does the MB brass cage provide?
A2: The MB one-piece machined brass cage ensures strength, excellent roller guidance, and durability under harsh working conditions.
Q3: How does the W33 lubrication groove enhance bearing performance?
A3: It improves lubrication flow, reduces heat buildup, and significantly extends service life.
Q4: In which industries is the 22334MB/W33C4 commonly used?
A4: It is widely used in mining machinery, steel mills, cement production equipment, paper mills, and other heavy industrial applications.