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, precise roller stability, and excellent impact resistance
• C4 internal clearance provides superior heat expansion capability for high-temperature heavy-load environments
• W33 lubrication groove improves cooling efficiency and lubrication flow
• Excellent radial and axial load capacity suitable for severe shock conditions
• Ideal for mining, steel mills, cement plants, paper mills, and other heavy-duty applications
| Bore diameter | 180 mm |
| Outside diameter | 380 mm |
| Width | 126 mm |
| Basic dynamic load rating | 1260 kN |
| Basic static load rating | 2270 kN |
| Grease Reference speed | 700 r/min |
| Oil Limiting speed | 900 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 | 70 kg |
| Roller material | Chrome steel |
| Ring Material | Chrome steel |
| Cage | Brass |
The JRZC 22336MB/W33C4 spherical roller bearing is designed for extremely heavy-load, high-impact, and high-temperature industrial environments. Equipped with the MB one-piece machined brass cage, this model delivers outstanding rigidity, precise roller guidance, and long-lasting stability under severe shock and continuous heavy-duty operation. The C4 internal clearance provides expanded thermal expansion capacity, making it ideal for applications where temperatures rise significantly during operation. The W33 lubrication groove enhances lubricant distribution and cooling performance, reducing friction and extending service life. This bearing is widely used in mining machinery, steel production, cement mills, paper equipment, and other heavy industrial systems requiring maximum reliability.
FAQ
Q1: Why is the C4 internal clearance important for this bearing?
A1: C4 offers greater internal expansion capability, making the bearing suitable for high-temperature and heavy-load operations.
Q2: What benefits does the MB brass cage provide?
A2: The MB one-piece machined brass cage delivers superior strength, roller stability, and durability under harsh working conditions.
Q3: How does the W33 lubrication groove help extend bearing life?
A3: It enhances lubricant flow, improves cooling, reduces friction, and supports longer service life.
Q4: In which industries is the 22336MB/W33C4 commonly used?
A4: It is widely applied in mining machinery, steel manufacturing, cement equipment, paper mills, and other demanding industrial sectors.