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.
• K tapered bore design allows flexible mounting with sleeves
• MB machined brass cage ensures high rigidity and stable roller guidance
• C3 internal clearance supports thermal expansion in heavy-duty operation
• W33 lubrication groove improves lubrication flow and heat dissipation
• Reliable performance under shock loads and continuous operation
| Bore diameter | 130 mm |
| Outside diameter | 280 mm |
| Width | 93 mm |
| Basic dynamic load rating | 722 kN |
| Basic static load rating | 1140 kN |
| Grease Reference speed | 950 r/min |
| Oil Limiting speed | 1300 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 | 29 kg |
| Roller material | Chrome steel |
| Ring Material | Chrome steel |
| Cage | Brass |
The JRZC 22326KMB/W33C3 spherical roller bearing is engineered for heavy-duty industrial applications requiring high load capacity, reliable self-aligning performance, and stable operation under demanding conditions. This model features a K tapered bore design, making it suitable for mounting with adapter or withdrawal sleeves. The MB one-piece machined brass cage provides excellent strength and precise roller guidance, ensuring durability under shock and vibration. With C3 internal clearance, the bearing accommodates moderate thermal expansion, while the W33 lubrication groove enhances grease circulation and cooling efficiency, extending service life. It is widely applied in mining machinery, steel production equipment, cement plants, conveyors, and large industrial gearboxes.
FAQ
Q1: What is the benefit of the K tapered bore design?
A1: The K tapered bore allows easy mounting and dismounting using adapter or withdrawal sleeves, improving installation flexibility.
Q2: Why is C3 internal clearance suitable for this bearing?
A2: C3 clearance provides additional internal space to accommodate thermal expansion during heavy-load or higher-temperature operation.
Q3: How does the MB brass cage improve bearing performance?
A3: The MB one-piece brass cage delivers excellent strength, precise roller guidance, and long-term durability under harsh conditions.
Q4: In which industries is the 22326KMB/W33C3 commonly used?
A4: It is commonly used in mining machinery, steel mills, cement plants, conveyor systems, and heavy industrial gearboxes.