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 strong rigidity and excellent roller stability
C4 internal clearance improves heat tolerance for high-temperature and heavy-load applications
W33 lubrication groove enhances cooling efficiency and optimized lubricant flow
Excellent radial and axial load capacity for shock-intensive industrial environments
Ideal for mining, steel mills, cement plants, paper machinery, and other heavy industrial systems
| Bore diameter | 260 mm |
| Outside diameter | 540 mm |
| Width | 165 mm |
| Basic dynamic load rating | 2200 kN |
| Basic static load rating | 4190 kN |
| Grease Reference speed | 480 r/min |
| Oil Limiting speed | 600 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 | 191 kg |
| Roller material | Chrome steel |
| Ring Material | Chrome steel |
| Cage | Brass |
The JRZC 22352MB/W33C4 spherical roller bearing is engineered for extremely heavy-load, high-impact, and continuous-duty industrial environments. Featuring the MB one-piece machined brass cage, this model delivers exceptional rigidity, precise roller guidance, and stable operation under severe working conditions. The C4 internal clearance offers increased thermal expansion capacity, making it highly suitable for high-temperature, high-speed, or heavy-load machinery. The W33 lubrication groove enhances grease circulation and cooling efficiency, ensuring reliable performance and extended service life. It is widely applied in mining machinery, steel production lines, cement mills, paper mills, and other heavy-duty equipment requiring maximum durability.
Q1: Why is the C4 internal clearance beneficial for this bearing?
A1: C4 clearance provides additional internal space, making the bearing suitable for high temperatures and heavy-load conditions where thermal expansion is significant.
Q2: What advantages does the MB brass cage offer?
A2: The MB one-piece machined brass cage delivers superior strength, precise roller guidance, and high durability in harsh operating conditions.
Q3: How does the W33 lubrication groove improve performance?
A3: It enhances lubricant distribution, reduces heat buildup, and helps extend the bearing’s overall service life.
Q4: Which industries commonly use the 22352MB/W33C4?
A4: Mining machinery, steel production systems, cement mills, paper mills, and other heavy-duty industrial applications.