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
• C4 internal clearance enhances thermal tolerance in high-temperature applications
• W33 lubrication groove improves lubrication efficiency and heat dissipation
• Excellent resistance to shock loads and continuous heavy-duty operation
• Suitable for mining equipment, steel production, cement machinery, and crushers
| Bore diameter | 130 mm |
| Outside diameter | 280 mm |
| Width | 93 mm |
| Basic dynamic load rating | 722 kN |
| Basic static load rating | 1140 kN |
| Grease Reference speed | 950 r/min |
| Oil Limiting speed | 1300 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 | 29 kg |
| Roller material | Chrome steel |
| Ring Material | Chrome steel |
| Cage | Brass |
The JRZC 22326MB/W33C4 spherical roller bearing is designed for heavy-duty industrial applications requiring high load capacity, excellent thermal stability, and reliable performance under harsh working conditions. Equipped with an MB one-piece machined brass cage, this bearing delivers superior strength, precise roller guidance, and enhanced resistance to shock and vibration. The C4 internal clearance allows additional space for thermal expansion in high-temperature and heavy-load environments, while the W33 lubrication groove improves grease flow and cooling efficiency, helping extend bearing service life. It is widely used in mining machinery, steel mills, cement plants, crushers, and large industrial gearboxes.
FAQ
Q1: Why is C4 internal clearance important for this bearing?
A1: C4 clearance provides extra internal space, allowing the bearing to operate reliably under high temperatures and heavy-load conditions.
Q2: What advantages does the MB brass cage offer?
A2: The MB one-piece brass cage ensures high strength, precise roller guidance, and stable performance under severe operating conditions.
Q3: How does the W33 lubrication groove improve performance?
A3: It enhances lubricant distribution, improves cooling efficiency, and helps extend bearing service life.
Q4: In which applications is the 22326MB/W33C4 commonly used?
A4: It is widely used in mining machinery, steel mills, cement plants, crushers, and heavy-duty industrial gearboxes.