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 high strength, excellent roller stability, and superior impact resistance
• C3 internal clearance supports better heat tolerance and smoother running under variable loads
• W33 lubrication groove enhances cooling performance and lubrication flow
• High radial and axial load capacity suitable for severe operating conditions
• Ideal for mining, steel mills, cement machinery, paper processing, and other heavy-duty applications
| Bore diameter | 180 mm |
| Outside diameter | 380 mm |
| Width | 126 mm |
| Basic dynamic load rating | 1260 kN |
| Basic static load rating | 2270 kN |
| Grease Reference speed | 700 r/min |
| Oil Limiting speed | 900 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 | 70 kg |
| Roller material | Chrome steel |
| Ring Material | Chrome steel |
| Cage | Brass |
The JRZC 22336MB/W33C3 spherical roller bearing is engineered for heavy-load and high-impact industrial environments that require stable performance, enhanced heat tolerance, and long service life. The MB one-piece machined brass cage provides exceptional rigidity, precise roller guidance, and high durability under continuous shock and vibration. With a C3 internal clearance, this model offers improved thermal expansion capacity and smoother operation in applications where temperatures and loads fluctuate. The W33 lubrication groove ensures optimal lubricant distribution and cooling efficiency, helping extend bearing life under harsh working conditions. It is widely used in mining machinery, steel production equipment, cement plants, paper mills, and heavy industrial machines.
FAQ
Q1: What makes the C3 internal clearance important for this bearing?
A1: C3 clearance offers additional space for heat expansion, improving performance under fluctuating temperatures and heavy loads.
Q2: What are the benefits of the MB brass cage?
A2: The MB one-piece brass cage ensures rigidity, stable roller guidance, and long-lasting durability in harsh industrial environments.
Q3: How does the W33 lubrication groove improve the bearing’s reliability?
A3: It enhances lubricant flow and cooling efficiency, reducing friction and extending service life.
Q4: Where is the 22336MB/W33C3 commonly used?
A4: It is widely applied in mining machinery, steel manufacturing, cement equipment, paper mills, and other heavy-duty industrial sectors.