-- SKF Authorized Engineering Partner
21320-21324ca W33 Self-Aligning Roller Bearing SKF
Product Introduction
Self-aligning roller bearings with model numbers 21320CA, 21321CA, 21322CA, 21324CA W33, made of bearing steel, suitable for OEM/ODM services.
Product Parameters
| Model NO. | 21320CA, 21321CA, 21322CA, 21324CA W33 |
| Precision Rating | P0, P6, P5, P4, P2 |
| Clearance | C0, C3, C4 |
| Specification | 100*215*47 mm |
| Material | Bearing Steel |
- Product Name
- 21320-21324ca W33 Self-Aligning Roller Bearing SKF
- Category
- Thrust Self-aligning Roller Bearing
- Quality Standard
- ISO 9001 / TS 16949
- Lead Time
- 8-12 Weeks Custom
- Minimum Order
- Negotiable
15+ Certified Engineers On-Call
Free application analysis · Failure diagnosis · Custom modification guidance. Response within 24 hours.
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!
Wind Power
Main shaft, gearbox, and generator bearings for onshore and offshore wind turbines. Engineered for 20+ year service life.
Mining & Heavy Industry
Crushers, conveyors, and processing equipment bearings designed to withstand shock loads and contaminated environments.
Steel & Metallurgy
Rolling mill and continuous casting bearings rated for extreme temperatures, heavy loads, and aggressive lubricants.
Automotive & EV
Hub units, transmission, and electric motor bearings meeting TS 16949 requirements for passenger and commercial vehicles.
Precision Machinery
Machine tool spindle and robotics bearings with P4/P2 accuracy class for ultra-precise positioning and minimal vibration.
General Industrial
Pumps, fans, compressors, and conveyor systems across all manufacturing sectors requiring reliable, cost-effective bearing solutions.
Authorized SKF Engineering Partner
Official partner since 1998 with direct access to SKF technical resources, genuine products, and engineering expertise.
15+ Certified Engineers On-Staff
In-house team provides application design, failure analysis, and predictive maintenance -- reducing bearing failures by 35%.
ISO 9001 & TS 16949 Certified QC
Every product undergoes rigorous pre-shipment inspection with full documentation for traceability and compliance.
Global Logistics to 50+ Countries
Dedicated account managers and reliable delivery networks ensure on-time supply for enterprise clients worldwide.
Performance Metrics
35%
Failures Prevented
70%
Downtime Reduction
25+
Years Experience
24h
Quote Response
78% of large enterprises prefer suppliers offering integrated technical support and lifecycle services.
Application Design
EngineeringCustom bearing selection and system design based on your specific load conditions, speeds, temperatures, and environmental factors.
Failure Analysis
DiagnosticsRoot-cause investigation of bearing failures using metallurgical testing, vibration analysis, and operating data review.
Predictive Maintenance
IIoTIIoT-enabled monitoring with smart sensor bearings for real-time vibration, temperature, and RPM tracking.
Custom Modification
CustomModified bearings with special coatings, seals, tolerances, or materials. Lead time 8-12 weeks from official channels.
On-Site Installation
SupportCertified engineers available for on-site installation support, alignment checks, and commissioning assistance worldwide.
Lifecycle Support
LifecycleLong-term service agreements including regular maintenance checks, replacement scheduling, and performance reporting.
Free samples available for orders over $50K
Validated against your KPIs before full production commitment.
-- Get In Touch
Request a Technical Consultation & Quote
Our certified engineers will review your application requirements and provide a detailed quote within 24 hours.
Address
No. 377 Bansongyuan Road, Huangpu District, Shanghai, China
Free Sample Program
Orders over $50K qualify for free product samples
Test against your KPIs before full production commitment. Ask our engineers for details.
Product Inquiry Form
Regarding: 21320-21324ca W33 Self-Aligning Roller Bearing SKF
-- Related Products
More Thrust Self-aligning Roller Bearing Products
NACHI NSK 24038-24052CAMKE4 Self-Aligning Roller Bearing
Bdl 24120-28cc W33 Self-Aligning Roller Bearing SKF
Bdl 23130-38cc W33 Self-Aligning Roller Bearings
SKF Authorized Engineering Partner
Need technical support or a custom solution?
15+ certified engineers ready to help. Response within 24 hours.