22317MB/W33C3
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 one-piece machined brass cage provides high rigidity and precise roller guidance
C3 internal clearance accommodates thermal expansion under heavy-load operation
W33 lubrication groove improves lubrication flow and cooling efficiency
Excellent radial and axial load capacity with reliable self-aligning capability
Suitable for continuous operation in demanding industrial applications
- Dimensions
Bore diameter 85 mm Outside diameter 180 mm Width 60 mm - Performance
Basic dynamic load rating 308 kN Basic static load rating 440 kN Grease Reference speed 1800 r/min Oil Limiting speed 2400 r/min - Properties
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 - Weight and Material
Product net weight 7.4 kg Roller material Chrome steel Ring Material Chrome steel Cage Brass
The JRZC 22317MB/W33C3 spherical roller bearing is engineered for heavy-duty industrial applications requiring high load capacity, stable self-aligning performance, and long service life. This bearing features an MB one-piece machined brass cage, providing excellent structural strength, precise roller guidance, and strong resistance to shock and vibration.
The C3 internal clearance allows the bearing to accommodate thermal expansion during continuous operation or moderate high-temperature conditions, while the W33 lubrication groove ensures efficient grease circulation and improved cooling. It is widely applied in mining machinery, crushers, conveyors, reducers, and other heavy-duty industrial equipment.
FAQ
Q1: Why is C3 internal clearance important for this bearing?
A1: C3 clearance provides additional internal space to accommodate thermal expansion, ensuring stable operation under heavy-load or moderate high-temperature conditions.
Q2: What advantages does the MB brass cage provide?
A2: The MB one-piece machined brass cage offers superior strength, precise roller guidance, and long-term durability in harsh environments.
Q3: How does the W33 lubrication groove improve bearing performance?
A3: It enhances grease distribution, improves cooling efficiency, reduces friction, and extends bearing service life.
Q4: In which applications is the 22317MB/W33C3 commonly used?
A4: Mining machinery, crushers, conveyors, industrial gearboxes, and other heavy-duty equipment.
