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 strong rigidity and superior roller stability
C3 internal clearance improves heat accommodation and operational smoothness
W33 lubrication groove enhances cooling and lubrication efficiency
Excellent radial and axial load capacity for heavy-impact conditions
Suitable for mining, steel production, cement plants, and heavy industrial machinery
| Bore diameter | 280 mm |
| Outside diameter | 580 mm |
| Width | 175 mm |
| Basic dynamic load rating | 2420 kN |
| Basic static load rating | 4650 kN |
| Grease Reference speed | 450 r/min |
| Oil Limiting speed | 560 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 | 238 kg |
| Roller material | Chrome steel |
| Ring Material | Chrome steel |
| Cage | Brass |
The JRZC 22356MB/W33C3 spherical roller bearing is engineered for extremely heavy-load applications that require exceptional stability, strong impact resistance, and long operating life. Its MB one-piece machined brass cage provides high rigidity and excellent roller guidance, ensuring reliable performance under severe mechanical stress. The C3 internal clearance allows for optimized thermal expansion control, supporting smooth rotation during heavy-load and high-speed operation. With the W33 lubrication groove, this model offers enhanced grease circulation and cooling efficiency, making it suitable for continuous, demanding industrial environments. It is widely used in mining machinery, steel mills, cement equipment, paper mills, and other heavy-duty systems requiring maximum durability.
Q1: What benefits does the C3 internal clearance provide?
A1: C3 offers extra internal space to accommodate heat expansion, ensuring stable operation under heavy load or moderate temperature increases.
Q2: Why choose the MB brass cage design?
A2: The MB one-piece machined brass cage delivers superior strength, precise roller guidance, and reliable performance in harsh industrial environments.
Q3: How does the W33 lubrication groove enhance bearing performance?
A3: It improves lubricant flow, reduces heat buildup, and significantly extends the bearing’s service life.
Q4: What industries commonly use the 22356MB/W33C3?
A4: It is widely used in mining, steel production machinery, cement mills, paper mills, and other heavy-duty industrial applications.