22317KMB/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.
K tapered bore design enables flexible mounting using adapter sleeves
MB one-piece machined brass cage offers high strength and excellent roller stability
C3 internal clearance accommodates thermal expansion under elevated temperatures
W33 lubrication groove and oil holes improve lubrication flow and cooling efficiency
High radial and axial load capacity with reliable self-aligning performance
- 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 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 - Weight and Material
Product net weight 7.4 kg Roller material Chrome steel Ring Material Chrome steel Cage Brass
The JRZC 22317KMB/W33C3 spherical roller bearing is designed for heavy-duty industrial applications operating under high load, vibration, and elevated temperature conditions. This model features a K tapered bore, allowing flexible mounting with adapter sleeves for easier installation and precise shaft alignment.
Equipped with an MB one-piece machined brass cage, the bearing provides excellent structural rigidity, stable roller guidance, and reliable performance under shock and vibration. The C3 internal clearance allows for additional thermal expansion during operation, while the W33 lubrication groove and oil holes ensure efficient grease distribution and improved cooling. It is widely used in mining machinery, crushers, conveyors, reducers, and other heavy industrial equipment requiring durability and continuous operation.
FAQ
Q1: What is the benefit of the K tapered bore design?
A1: The tapered bore allows the bearing to be mounted with adapter sleeves, making installation, dismounting, and shaft alignment easier and more precise.
Q2: Why is C3 internal clearance important for this bearing?
A2: C3 clearance provides extra internal space to compensate for thermal expansion and heavy-load operation, reducing the risk of overheating.
Q3: What advantages does the MB brass cage provide?
A3: The MB machined brass cage ensures high mechanical strength, excellent roller guidance, and stable performance in harsh operating conditions.
Q4: In which applications is the 22317KMB/W33C3 commonly used?
A4: It is commonly used in mining equipment, crushers, conveyors, gearboxes, and other heavy-duty industrial machinery.
