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 and excellent roller guidance
• C3 internal clearance supports stable operation under variable loads and temperatures
• W33 lubrication groove improves lubrication efficiency and heat dissipation
• Excellent radial and axial load capacity for heavy-duty working conditions
• Suitable for mining equipment, crushers, conveyors, steel mills, and industrial machinery
| Bore diameter | 140 mm |
| Outside diameter | 300 mm |
| Width | 102 mm |
| Basic dynamic load rating | 825 kN |
| Basic static load rating | 1340 kN |
| Grease Reference speed | 900 r/min |
| Oil Limiting speed | 1200 r/min |
| Bore type | Cylindrical |
| For Load Direction | Radial |
| Number of rows | Double row |
| Radial internal clearance | C3 |
| Tolerance class for dimensions | Nomal |
| Tolerance class for run-out | P6 |
| Seal type | Without |
| Lubricant | None |
| Relubrication feature | Without |
| Product net weight | 36 kg |
| Roller material | Chrome steel |
| Ring Material | Chrome steel |
| Cage | Brass |
The JRZC 22328MB/W33C3 spherical roller bearing is designed for heavy-load industrial applications requiring high reliability, stable operation, and long service life. This model is equipped with an MB one-piece machined brass cage, providing excellent strength, precise roller guidance, and strong resistance to shock and vibration. The C3 internal clearance allows for moderate thermal expansion during operation, while the W33 lubrication groove enhances grease distribution and cooling efficiency. The bearing is widely used in mining machinery, crushers, conveyors, steel plants, and other heavy-duty industrial equipment.
FAQ
Q1: What advantages does the MB brass cage offer?
A1: The MB one-piece machined brass cage delivers high strength, stable roller guidance, and reliable performance under heavy loads and vibration.
Q2: Why is C3 internal clearance important for this bearing?
A2: C3 clearance allows the bearing to accommodate thermal expansion and maintain stable performance in fluctuating operating conditions.
Q3: How does the W33 lubrication groove improve bearing performance?
A3: It ensures better grease circulation, improved cooling, and extended service life.
Q4: In which industries is the 22328MB/W33C3 commonly used?
A4: It is commonly used in mining machinery, crushers, conveyors, steel plants, and other heavy-duty industrial applications.