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 delivers high rigidity and superior durability
W33 lubrication groove improves cooling efficiency and lubrication flow
Excellent radial and axial load capacity for extreme working conditions
Stable performance under shock, vibration, and continuous heavy load
Ideal for mining, steel mills, cement plants, paper machinery, and other heavy industries
| 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 | C0 |
| 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/W33 spherical roller bearing is engineered for extremely heavy-load and continuous industrial applications that require exceptional strength, superior impact resistance, and long operating life. Featuring the MB one-piece machined brass cage, this model provides high rigidity, excellent roller guidance, and stable performance even under severe mechanical stress. The W33 lubrication groove enhances grease circulation and promotes efficient cooling, supporting reliable operation in high-load and high-temperature environments. This bearing is widely used in mining equipment, steel production lines, cement mills, paper mills, and other demanding heavy-duty machinery.
Q1: What benefits does the MB brass cage design offer?
A1: The MB one-piece machined brass cage provides high strength, excellent roller stability, and superior durability in harsh environments.
Q2: How does the W33 lubrication groove improve performance?
A2: It enhances lubricant distribution, reduces heat buildup, and increases the bearing’s overall service life.
Q3: Is this model suitable for continuous heavy-load applications?
A3: Yes, it is specifically designed for high-load, high-impact, and long-duty-cycle industrial equipment.
Q4: Which industries commonly use the 22356MB/W33?
A4: Mining, steel processing, cement production, paper mills, and other heavy industrial machinery.