21304 CA W33 Spherical Roller Bearing China Factory and Suppliers
Looking for high-precision 21304 CA W33 Spherical Roller Bearings? Our China factory provides premium chrome steel bearings with brass cages. Leading suppliers ensuring long service life and high load capacity for industrial machinery.
About this product
Product information from the supplier.
The 21304 CA W33 Spherical Roller Bearing is a high-precision engineered component specifically designed to handle extreme radial and axial loads. Combining superior structural integrity with a robust design, this bearing ensures smooth, efficient rotation and exceptional stability, making it an indispensable part for heavy-duty machinery operating in demanding industrial environments.
Crafted from premium chrome steel with a professional brass cage, the 21304 CA W33 is optimized for longevity and reliability. It is the ideal solution for sectors such as construction, mining, and manufacturing, where minimizing downtime and reducing maintenance costs through high-performance components is critical for operational productivity.
Detailed Parameters
| Inside Diameter | 20 mm | Outside Diameter | 52 mm |
|---|---|---|---|
| Width | 15 mm | Bore Type | Cylindrical |
| Ring Material | Chrome Steel | Rolling Element | Chrome Steel |
| Cage Material | Brass | Product Weight | 0.165 Kg |
| Rsmin | 1.1 mm | Dynamic Load (Cr) | 32 KN |
Key Advantages
Heavy Load Capacity
Engineered to withstand significant radial and axial stresses without deformation.
Extended Service Life
Premium chrome steel construction ensures wear resistance and long-term durability.
Precision Engineering
Strict dimensional tolerances provide smooth rotation and reduced vibrational noise.
Self-Aligning Ability
Spherical design compensates for shaft misalignment, preventing premature failure.
Brass Cage Stability
High-strength brass cage provides superior guidance and stability under heat.
Industrial Versatility
Perfect for mining, cement mixers, and heavy agricultural machinery applications.
Product Gallery
Management Platforms
Inventory Control
Real-time tracking of bearing stock levels to ensure rapid delivery.
Quality Assurance
Rigorous inspection protocols for every batch of spherical roller bearings.
Maintenance Alerts
Scheduled monitoring systems to predict bearing replacement cycles.
Logistics Tracking
End-to-end visibility of shipments for global industrial clients.
OEM Integration
Customized specifications for seamless integration into original equipment.
Technical Support
Expert guidance on lubrication and installation for maximum performance.
Investment Return Comparison
| Metric | Standard Bearings | Premium 21304 CA |
|---|---|---|
| Service Life | Short-Mid Term | Ultra-Long Term |
| Maintenance Frequency | High | Very Low |
| Operational Stability | Moderate | High Stability |
| Energy Efficiency | Standard | Optimized (Low Friction) |
| Overall ROI | Low (Due to replacements) | High (Reduced Downtime) |
Frequently Asked Questions
Its spherical design allows for self-alignment, meaning it can handle shaft misalignment and heavy radial/axial loads without causing premature wear.
Brass cages provide better stability, superior heat dissipation, and higher resistance to wear in high-vibration industrial environments.
Mining, construction, cement production, and heavy machinery manufacturing benefit most due to the bearing's high load capacity.
By utilizing premium chrome steel and a robust design, it extends the time between replacements and reduces the risk of sudden machinery failure.
W33 typically indicates a lubrication groove and holes in the outer ring, facilitating easier lubrication of the rolling elements.
Yes, spherical roller bearings are specifically designed to support heavy radial loads as well as significant axial loads in both directions.



