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, excellent roller stability, and strong durability
C3 internal clearance accommodates thermal expansion and ensures smooth operation
W33 lubrication groove improves lubrication distribution and cooling efficiency
Excellent radial and axial load capacity for high-impact industrial conditions
Ideal for mining machinery, steel mills, cement plants, paper machinery, and other heavy-duty industrial applications
| Bore diameter | 240 mm |
| Outside diameter | 500 mm |
| Width | 155 mm |
| Basic dynamic load rating | 1730 kN |
| Basic static load rating | 3250 kN |
| Grease Reference speed | 500 r/min |
| Oil Limiting speed | 630 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 | 153 kg |
| Roller material | Chrome steel |
| Ring Material | Chrome steel |
| Cage | Brass |
The JRZC 22348MB/W33C3 spherical roller bearing is designed for heavy-load and high-impact industrial applications requiring reliable performance, long service life, and continuous operation. Featuring the MB one-piece machined brass cage, this bearing provides high rigidity, precise roller guidance, and strong durability under severe working conditions. The C3 internal clearance allows for thermal expansion, ensuring smooth operation under heavy load and moderate temperature environments. The W33 lubrication groove enhances grease flow and cooling efficiency, extending service life in demanding industrial systems. It is widely used in mining machinery, steel production lines, cement mills, paper mills, and other heavy-duty equipment.
Q1: What is the benefit of the C3 internal clearance?
A1: C3 provides additional internal space to accommodate thermal expansion, ensuring stable operation under heavy load and moderate temperatures.
Q2: Why is the MB brass cage important?
A2: The MB one-piece machined brass cage delivers superior strength, precise roller guidance, and reliable durability in harsh industrial conditions.
Q3: How does the W33 lubrication groove improve performance?
A3: It enhances lubricant flow, improves cooling efficiency, and extends the bearing’s service life.
Q4: Which industries commonly use the 22348MB/W33C3?
A4: Mining machinery, steel production equipment, cement mills, paper mills, and other heavy-duty industrial applications.