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, superior roller stability, and impact resistance
• C3 internal clearance provides improved heat tolerance for high-temperature heavy-load applications
• W33 lubrication groove enhances cooling, lubrication flow, and long-term bearing life
• Excellent radial and axial load capacity for severe industrial shock and continuous-duty environments
• Ideal for mining, steel mills, cement plants, paper machinery, and other heavy-duty industrial systems
| Bore diameter | 170 mm |
| Outside diameter | 360 mm |
| Width | 120 mm |
| Basic dynamic load rating | 1150 kN |
| Basic static load rating | 2060 kN |
| Grease Reference speed | 750 r/min |
| Oil Limiting speed | 950 r/min |
| Bore type | Tapered 1:12 |
| 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 | 60 kg |
| Roller material | Chrome steel |
| Ring Material | Chrome steel |
| Cage | Brass |
The JRZC 22334MB/W33C3 spherical roller bearing is engineered for heavy-load, high-impact, and continuous-operation industrial environments. Equipped with the MB one-piece machined brass cage, it provides excellent rigidity, superior roller guidance, and stable performance under severe working conditions. The C3 internal clearance ensures enhanced thermal expansion capability, making it suitable for equipment with elevated temperatures and heavy radial loads. Additionally, the W33 lubrication groove improves cooling efficiency, lubricant distribution, and long-term durability. This bearing is widely applied in mining machinery, steel production systems, cement equipment, paper mills, and other heavy-duty industrial sectors requiring reliable long-service performance.
FAQ
Q1: What is the advantage of the C3 internal clearance?
A1: C3 clearance allows additional internal expansion, making the bearing suitable for high temperatures and heavy-load conditions.
Q2: Why choose the MB brass cage design?
A2: The MB one-piece machined brass cage provides superior strength, roller guidance stability, and excellent durability in harsh environments.
Q3: How does the W33 lubrication groove improve performance?
A3: It increases lubricant distribution efficiency, enhances cooling, and extends overall service life.
Q4: Which industries typically use the 22334MB/W33C3?
A4: It is commonly used in mining equipment, steel production machinery, cement mills, paper mills, and other heavy industrial operations.