22317MB/W33
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
Standard internal clearance suitable for stable operation under heavy load
W33 lubrication groove improves grease flow and cooling efficiency
Excellent radial and axial load capacity with self-aligning performance
Reliable performance in continuous heavy-duty operation
- 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 C0 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/W33 spherical roller bearing is designed 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, offering excellent structural strength, precise roller guidance, and reliable resistance to shock and vibration.
With standard internal clearance, it is suitable for normal operating temperatures and heavy-load applications. The W33 lubrication groove ensures efficient grease circulation and improved cooling, reducing friction and wear during continuous operation. It is widely used in mining machinery, crushers, conveyors, reducers, and other heavy-duty industrial systems.
FAQ
Q1: What is the advantage of standard internal clearance in this bearing?
A1: Standard clearance provides stable operation for normal temperature and heavy-load conditions without risk of excessive internal stress.
Q2: How does the MB brass cage improve reliability?
A2: The MB one-piece machined brass cage ensures high strength, precise roller guidance, and long service life under shock and vibration.
Q3: What is the function of the W33 lubrication groove?
A3: It improves grease distribution, enhances cooling efficiency, and reduces wear, extending the bearing’s operational life.
Q4: In which applications is the 22317MB/W33 commonly used?
A4: Mining machinery, crushers, conveyors, gearboxes, and other heavy-duty industrial equipment.
