Description
High-Performance 21311cc-21316cc W33 Self-Aligning Roller Bearings for Heavy-Duty Truck Applications
Engineered to deliver exceptional durability and reliability, our 21311cc-21316cc W33 self-aligning roller bearings are the ideal solution for heavy-duty truck transmissions, axles, and gearboxes. Designed with double rows of precision rollers and self-aligning capabilities, these bearings effectively accommodate misalignment and heavy radial loads, ensuring smooth operation even in the most demanding road conditions. Trusted by leading truck manufacturers, they reduce maintenance downtime and extend service life—critical for maximizing fleet efficiency.
Core Specifications
| Parameter | Details |
|---|---|
| Model Range | 21311cc, 21312cc, 21313cc, 21314cc, 21315cc, 21316cc (W33) |
| Precision Rating | P0, P6, P5, P4, P2 |
| Clearance | C0, C3, C4 |
| Material | High-Grade Bearing Steel |
| Structure | Double-Row, Unseparated |
| Load Type | Radial Bearing |
| Outer Dimension | 50-2500 mm |
| Service | OEM/ODM Available |
| Origin | China (Compliant with International Standards) |
| HS Code | 8482300000 |
Key Performance Advantages
• Self-Aligning Design: Compensates for shaft misalignment (up to 2°), reducing stress on truck components.
• High Load Capacity: Double-row rollers distribute heavy radial loads efficiently, ideal for long-haul trucks.
• Precision Engineering: Available in P2-P0 precision grades for smooth, low-vibration operation.
• Durable Material: Premium bearing steel resists wear and corrosion, ensuring extended service life in harsh environments.
Applications
Perfect for heavy-duty trucks, trailers, and commercial vehicles, these bearings are widely used in:
• Transmission systems
• Drive axles
• Differential gears
• PTO (Power Take-Off) units
• Industrial machinery requiring reliable radial load support
Quality Assurance
Our bearings undergo rigorous testing, including dimensional inspection, load capacity verification, and fatigue life testing. Backed by ISO standards and produced in a facility with a monthly capacity of 1,000,000 units, we guarantee consistent quality. Trusted brands like SKF, NTN, NSK, and Timken validate our manufacturing expertise.
Why Choose Us?
Unlike generic bearings, our W33 series offers:
• Customizable clearance and precision options (C0/C3/C4; P2-P0)
• OEM/ODM services tailored to your truck model specifications
• Competitive pricing without compromising on performance
• Fast delivery via carton/pallet packaging for global shipments
FAQ
Q: What is the W33 suffix?
A: W33 indicates a lubrication groove and three oil holes in the outer ring, facilitating maintenance and extending bearing life.
Q: Can these bearings handle high temperatures?
A: Yes, bearing steel construction ensures stability in temperatures up to 120°C (248°F), suitable for continuous truck operation.
Q: Are samples available?
A: Yes, contact us to request samples for testing compatibility with your truck systems.
Ready to enhance your truck fleet’s reliability? Contact our team today for a personalized quote and technical support. Let’s keep your trucks moving with bearings you can trust.
