Description
21320CA 21321CA 21322CA 21324CA W33 Self-Aligning Roller Bearings: Reliable Solutions for Heavy-Duty Truck Applications
Designed to deliver exceptional performance in demanding truck operations, our self-aligning roller bearings ensure smooth rotation, reduced downtime, and extended service life. Engineered with precision and durability, these bearings are the ideal choice for heavy-duty truck axles, transmissions, and wheel hubs, providing reliable support even under extreme loads and misalignment conditions.
Core Specifications
| Model | 21320CA, 21321CA, 21322CA, 21324CA (W33) |
| Precision Rating | P0, P6, P5, P4, P2 |
| Clearance | C0, C3, C4 |
| Material | High-Quality Bearing Steel |
| Structure | Double-Row, Unseparated |
| Load Type | Radial Bearing |
| Outer Dimension Range | 50-2500 mm |
| Typical Specification | 100*215*47 mm (Example) |
| Brands Available | SKF, NTN, NSK, NMB, Koyo, NACHI, Timken |
| Origin | China (ISO/TS 16949 Certified) |
Key Performance Advantages
- Self-Aligning Capability: Compensates for shaft misalignment, reducing stress on truck components.
- High Load Capacity: Double-row design supports heavy radial and axial loads, ideal for truck axles.
- Enhanced Durability: Premium bearing steel construction resists wear and fatigue in long-haul operations.
- Low Maintenance: Sealed design (W33) minimizes lubrication needs and contamination risks.
Applications
Perfect for truck drivetrains, wheel hubs, transmissions, and industrial machinery requiring robust radial support. Trusted by truck manufacturers and fleet operators for reliable performance in on-road and off-road conditions.
Quality Assurance
Our bearings meet international standards (HS Code: 8482300000) and undergo strict quality control, including precision testing and material inspections. Backed by OEM/ODM services to meet custom truck specifications.
Why Choose Us?
Unlike generic bearings, our products combine top-tier brand options, flexible specifications (clearance, precision), and factory-direct pricing. We ensure consistent supply with a production capacity of 1,000,000 units annually, making us your reliable long-term partner.
FAQ
Q: What is the W33 suffix?
A: W33 indicates a lubrication groove and three oil holes in the outer ring for enhanced maintenance.
Q: Can these bearings handle high temperatures?
A: Yes, bearing steel material ensures stability in temperatures up to 120°C (248°F) for truck engine and transmission applications.
Q: Are custom sizes available?
A: Contact us for ODM services to match your specific truck model requirements.
Ready to upgrade your truck’s performance? Send us an inquiry today with your model, quantity, and technical needs for a tailored quote!
