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 allows secure mounting and improved fit
MB machined brass cage ensures excellent strength and roller guidance
C3 internal clearance enhances thermal expansion control under heavy load
W33 lubrication groove improves cooling and long-term lubrication efficiency
Suitable for mining, steel mills, cement plants, paper machinery, and other heavy industrial applications
| Bore diameter | 260 mm |
| Outside diameter | 540 mm |
| Width | 165 mm |
| Basic dynamic load rating | 2200 kN |
| Basic static load rating | 4190 kN |
| Grease Reference speed | 480 r/min |
| Oil Limiting speed | 600 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 | 191 kg |
| Roller material | Chrome steel |
| Ring Material | Chrome steel |
| Cage | Brass |
The JRZC 22352KMB/W33C3 spherical roller bearing is designed for heavy-load, high-impact, and continuously operating industrial environments. Featuring the K tapered bore for secure mounting and the MB one-piece machined brass cage, this model ensures superior rigidity, precise roller guidance, and stable performance under severe working conditions. The C3 internal clearance provides additional space for thermal expansion, making it ideal for high-temperature or heavy-load machinery. With the W33 lubrication groove, the bearing achieves improved lubricant circulation and cooling efficiency. It is widely used in mining machinery, steel production lines, cement mills, paper mills, and other heavy-duty equipment requiring maximum reliability.
Q1: What is the benefit of the K tapered bore?
A1: The K bore provides a tight and secure fit on tapered sleeves or tapered shafts, improving operational stability.
Q2: Why is the MB brass cage important?
A2: The MB one-piece machined brass cage offers superior rigidity, excellent roller stability, and strong durability for demanding environments.
Q3: How does the C3 clearance contribute to performance?
A3: C3 provides extra internal clearance to accommodate thermal expansion, ensuring smooth operation under heavy load and elevated temperatures.
Q4: What industries commonly use the 22352KMB/W33C3?
A4: It is widely used in mining equipment, steel production machinery, cement mills, paper mills, and other heavy-duty industrial systems.