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 and excellent roller stability
• C3 internal clearance supports thermal expansion under heavy-load operation
• W33 lubrication groove improves lubrication efficiency and heat dissipation
• High radial and axial load capacity for demanding industrial environments
• Suitable for continuous operation and shock-loaded machinery
| 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 | C3 |
| 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/W33C3 spherical roller bearing is designed for heavy-load industrial applications requiring stable operation, high durability, and reliable performance under demanding conditions. This model adopts an MB one-piece machined brass cage, providing excellent strength, precise roller guidance, and superior resistance to shock and vibration. The C3 internal clearance allows the bearing to accommodate thermal expansion during continuous or high-load operation, while the W33 lubrication groove enhances grease distribution and cooling efficiency. It is widely used in mining equipment, steel processing machinery, cement plants, conveyors, and large industrial drive systems.
FAQ
Q1: Why is the C3 internal clearance important for this bearing?
A1: C3 clearance provides additional internal space, helping the bearing perform reliably under heat generation and heavy-load conditions.
Q2: What advantages does the MB brass cage provide?
A2: The MB one-piece machined brass cage offers superior strength, precise roller guidance, and long service life in harsh environments.
Q3: How does the W33 lubrication groove improve bearing life?
A3: It enhances grease circulation and cooling, reducing friction and wear during operation.
Q4: What applications commonly use the 22326MB/W33C3?
A4: Mining machinery, steel mills, cement plants, conveyor systems, and heavy industrial equipment.