21300 Series 21317 MBK/W33 Dimensions, Specifications & Applications
Looking for detailed specifications of 21317 MBK/W33 21300 Series? This guide provides complete information including dimensions, load ratings, applications, and selection tips.
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21317 MBK/W33 Bearing Dimensions
The standard dimensions of 21317 MBK/W33 21300 Series are as follows:
| Parameter | Value |
|---|---|
| Bore Diameter (d) | 85.00 mm |
| Outer Diameter (D) | 180.00 mm |
| Width (B) | 41.00 mm |
These dimensions make it suitable for medium to heavy-duty industrial applications.
21317 MBK/W33 Bearing Specifications
| Item | Data |
|---|---|
| Bearing Type | Spherical Roller Bearing |
| Cage Type | brass cage |
| Feature Tag | In Stock |
| Clearance | C0 / C3 / C4 |
| Precision Grade | P6 / P5 |
Explore full specifications, dimensions, and bearing models in our Spherical Roller Bearing Catalog.
What is 21317 MBK/W33 Bearing?
21317 MBK/W33 is a 21300 Series designed to accommodate heavy radial and axial loads.
It features self-aligning capability, allowing it to perform well even under shaft misalignment or harsh working environments.
Applications of 21317 MBK/W33 Bearing
This bearing is widely used in various industries, including:
● Mining machinery
● Vibrating screens
● Cement equipment
● Rolling mills
● Wind power systems
Due to its robust structure, it performs reliably in high-load and high-vibration environments.
Advantages of 21317 MBK/W33 Bearing
● High load carrying capacity
● Long service life
● Excellent resistance to shock and vibration
● Suitable for harsh environments
● Stable performance with P6/P5 precision
How to Choose the Right Spherical Roller Bearing?
When selecting a spherical roller bearing, consider the following factors:
● Load requirements (radial and axial)
● Operating environment (dust, temperature, vibration)
● Rotational speed
● Lubrication conditions
● Installation space
Choosing the correct bearing can significantly improve equipment efficiency and lifespan.
21317 MBK/W33 Bearing Variants Comparison (E1 vs CCW33 vs CAW33 vs MBW33)
Although E1, CCW33, CAW33, and MBW33 share the same dimensions, their cage design and performance characteristics are optimized for different working conditions.
| Model | Cage Type | Design Positioning | Key Features | Recommended Application |
|---|---|---|---|---|
| E1 | Optimized Steel Cage | High-load design | Larger rollers, increased load capacity | Heavy industrial applications |
| CCW33 | Steel Cage | Standard / general-purpose | Cost-effective, stable structure | General machinery |
| CAW33 | Brass Cage (one-piece) | Durable / balanced design | Strong structure, good durability | General heavy-duty equipment |
| MBW33 | Brass Cage (two-piece) | High-speed / precision design | Low friction, smooth operation | High-speed or precision equipment |
Key Differences Explained
1. Load Capacity
● E1: provides enhanced load capacity due to optimized internal geometry
● CCW33: is suitable for standard operating conditions
● CAW33: offers stable performance in general heavy-duty use
● MBW33: focuses more on smooth running rather than maximum load
2. Cage Structure & Material
● E1 / CCW33: Steel cages
● CAW33: One-piece machined brass cage, durable and stable
● MBW33: Two-piece brass cage, better guidance and reduced friction
3. Performance Focus
● E1: Reinforced design for higher load capacity
● CCW33: Versatile, cost-effective solution
● CAW33: Balanced durability for general heavy-duty conditions
● MBW33: Optimized for high-speed and low-friction operation
Important Note for Heavy Vibration Applications
For strong vibration conditions such as vibrating screens, MA type bearings (special vibrating screen design) are recommended instead of CA type.
How to Choose?
For high load capacity → E1
For general applications → CCW33
For stable heavy-duty use → CAW33
For high-speed operation → MBW33
For strong vibration (e.g., vibrating screens) → MA type
Selecting the correct model depends on your specific application requirements.
Need help selecting the right model? Contact us for expert support.
FAQ About 21317 MBK/W33 Bearing
Q1: What is the size of 21317 MBK/W33 bearing?
A: The standard size is 85.00mm×180.00mm×41.00mm.
Q2: What is 21317 MBK/W33 bearing used for?
A: It is used in heavy-duty machinery such as mining, cement, and vibrating equipment.
Q3: Do you have stock for 21317 MBK/W33?
A: Yes, we have large stock available for fast delivery.
Q4: Can you provide OEM service?
A: Yes, we support OEM and customized bearing solutions.
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