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 provides high rigidity, excellent roller stability, and superior impact resistance
C4 internal clearance offers enhanced heat tolerance for high-temperature and heavy-load environments
W33 lubrication groove improves cooling, lubrication flow, and long-term durability
Excellent radial and axial load capacity, suitable for severe industrial shock conditions
Ideal for mining, steel mills, cement plants, paper machinery, and other heavy-duty industrial systems
| Bore diameter | 280 mm |
| Outside diameter | 580 mm |
| Width | 175 mm |
| Basic dynamic load rating | 2420 kN |
| Basic static load rating | 4650 kN |
| Grease Reference speed | 450 r/min |
| Oil Limiting speed | 560 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 | 238 kg |
| Roller material | Chrome steel |
| Ring Material | Chrome steel |
| Cage | Brass |
The JRZC 22356MB/W33C4 spherical roller bearing is designed for extremely heavy-load and high-impact industrial applications that demand outstanding stability, enhanced thermal tolerance, and long service life. Featuring the MB one-piece machined brass cage, this model provides superior strength, excellent roller guidance, and reliable performance under severe working conditions. The C4 internal clearance allows additional expansion capability for high-temperature operations, while the W33 lubrication groove improves grease circulation and cooling efficiency. This bearing is widely applied in mining machinery, steel production, cement mills, paper mills, and other heavy-duty equipment requiring maximum durability and continuous operation.
Q1: Why is the C4 internal clearance beneficial for this bearing?
A1: C4 clearance provides extra internal space, making the bearing ideal for high temperature and heavy-load conditions where thermal expansion is significant.
Q2: What advantages does the MB brass cage offer?
A2: The MB one-piece brass cage delivers high strength, excellent roller guidance, and superior durability in harsh environments.
Q3: How does the W33 lubrication groove improve performance?
A3: It enhances lubricant distribution, improves cooling efficiency, and helps extend service life.
Q4: In which industries is the 22356MB/W33C4 commonly used?
A4: It is widely used in mining equipment, steel production machinery, cement mills, paper mills, and other heavy industrial applications.