22330MB/W33C4
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, roller stability, and excellent durability
C4 internal clearance provides enhanced heat tolerance for extreme temperature environments
W33 lubrication groove improves lubrication flow and cooling performance
Excellent radial and axial load capacity for heavy-impact industrial applications
Ideal for mining, steel processing, cement plants, paper machinery, and other heavy-duty systems
- Dimensions
Bore diameter 150 mm Outside diameter 320 mm Width 108 mm - Performance
Basic dynamic load rating 1020 kN Basic static load rating 1740 kN Grease Reference speed 850 r/min Oil Limiting speed 1100 r/min - Properties
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 - Weight and Material
Product net weight 43 kg Roller material Chrome steel Ring Material Chrome steel Cage Brass
The JRZC 22330MB/W33C4 spherical roller bearing is designed for extremely heavy-load and high-temperature industrial environments requiring maximum durability, enhanced thermal expansion capacity, and long-term operational stability. Equipped with the MB one-piece machined brass cage, this model delivers superior strength, excellent roller guidance, and consistent performance under severe impact and continuous-duty conditions. The C4 internal clearance provides additional space for thermal expansion, making it ideal for high-temperature operations. The W33 lubrication groove enhances grease circulation and cooling efficiency, extending service life. This bearing is widely applied in mining equipment, steel mills, cement production machinery, paper mills, and other heavy-duty industrial systems.
FAQ
Q1: Why is the C4 internal clearance important for this bearing?
A1: The C4 clearance allows greater thermal expansion, ensuring reliable performance in high-temperature and heavy-load operations.
Q2: What advantages does the MB brass cage offer?
A2: The MB one-piece brass cage provides superior strength, precise roller guidance, and reliable durability under harsh industrial conditions.
Q3: How does the W33 lubrication groove improve performance?
A3: It enhances lubricant distribution, improves cooling efficiency, and extends the bearing’s service life.
Q4: Which industries commonly use the 22330MB/W33C4?
A4: Mining, steel mills, cement production, paper mills, and other heavy-duty industrial applications.
