Spherical Roller Bearing
ISO 9001 Certified
TS 16949
Genuine SKF
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Spherical Roller Bearing
21317-21324cc W33 Self-Aligning Roller Bearings
Keep your machinery running smoothly with reduced downtime using our 21317-21324cc W33 Self-Aligning Roller Bearings. These precision-engineered components automatically compensate for shaft misalignment, ensuring consistent performance even in demanding industrial environments.
- Built with W33 lubrication grooves and channels to maintain optimal grease distribution, extending service life and minimizing maintenance needs
- Handles heavy radial loads with ease while accommodating axial displacement, making them ideal for conveyor systems, pumps, and gearboxes
- Manufactured to strict tolerance standards for reliable operation in high-torque applications, so you can trust in uninterrupted workflow
7
Day Prototype
vs. 8-12 wks standard
50+
Countries Served
Global logistics network
12h
Quote Response
Expert engineers on call
Typical Applications
Wind Power
Mining
Steel & Metallurgy
Automotive / EV
Rail Transit
Precision Machinery
Genuine SKF Bearings
NDA Protected
Free Sample for Orders > $50K
Global Shipping
Product Details
Product Specifications
| Parameter | Details |
|---|---|
| Bearing Type | Self-Aligning Roller Bearings |
| Model Number | 21317-21324cc W33 |
Application Suitability
| Industry | Typical Applications |
|---|---|
| Construction Machinery | Excavator arm pivot points, bulldozer undercarriage |
| Wind Energy | Generator gearboxes, yaw drive systems |
| Mining | Conveyor belt pulleys, crusher shafts |
| Steel Metallurgy | Rolling mill stands, continuous casting machines |
Struggling with Bearing Reliability in Heavy-Duty Applications? The 21317-21324cc W33 Self-Aligning Roller Bearings Make a Difference
Mismatched bearing dimensions causing installation delays, premature failures due to poor material quality, and the hassle of sourcing from multiple suppliers—these are common frustrations in industrial bearing procurement. When equipment downtime translates to lost productivity, finding the right self-aligning roller bearings becomes critical.
Engineered to Solve Your Toughest Alignment Challenges
The 21317-21324cc W33 self-aligning roller bearings are designed to accommodate shaft misalignment, a frequent issue in heavy machinery like construction equipment and wind turbines. Our ISO 9001-certified production process ensures consistent quality, while our extensive network allows us to source both our own brand and major international models, providing a one-stop solution for your bearing needs.
Optimal Performance in Demanding Operating Conditions
These bearings excel in applications with moderate to heavy radial loads and occasional axial loads, such as conveyor systems and mining equipment. With their W33 lubrication groove and hole design, they maintain performance in environments with temperatures ranging from -30°C to 120°C, making them suitable for both indoor and outdoor industrial settings.
Key Engineering Features That Enhance Durability
The 21317-21324cc W33 series incorporates several critical design elements: the spherical outer ring allows for up to 2-3 degrees of misalignment, reducing stress on shafts and housings. Precision-ground raceways ensure uniform load distribution across the rollers, while high-quality steel construction provides the surface hardness needed to resist wear in high-load applications. The W33 lubrication system facilitates re-greasing, extending maintenance intervals compared to non-grooved alternatives.
Why Choosing the Right Bearing Reduces Total Cost of Ownership
Investing in properly specified self-aligning roller bearings minimizes unplanned downtime. A bearing that matches both load requirements and misalignment tolerance will outlast cheaper alternatives, reducing replacement frequency and labor costs. Following ISO 281 guidelines for bearing life calculation, these units deliver predictable performance, allowing for more accurate maintenance scheduling and better overall equipment efficiency.
Quality Assurance You Can Trust
Every 21317-21324cc W33 bearing undergoes rigorous inspection, including dimensional accuracy checks and hardness testing, before leaving our facility. We stand behind our products with a standard质保期, covering manufacturing defects. Our ability to source from multiple brands ensures you get the right bearing for your specific application, whether you require an exact OEM replacement or an alternative with interchangeable dimensions.
Packaging & Shipping
- Neutral industrial packaging with protective wrapping
- Available from stock for immediate dispatch
- Flexible shipping options including express courier, air freight, and sea transport
- Low minimum order quantity, suitable for both maintenance needs and bulk production
Get Your 21317-21324cc W33 Bearing Quote Today
Whether you need a single replacement or a bulk order, provide us with your required quantity and delivery location, and we’ll promptly supply pricing and availability. Our team can also assist with cross-referencing to ensure compatibility with your existing equipment.
Frequently Asked Questions
Q: Do you supply other bearing brands and models besides this series?
A: Yes, we offer a full range of bearing types from various manufacturers, including deep沟球, cylindrical roller, and spherical bearings, to meet diverse application requirements.
Q: How can I confirm if this bearing fits my machinery?
A: Provide your equipment model or existing bearing dimensions (bore, outer diameter, width), and our technical team will verify compatibility with the 21317-21324cc W33 specifications.
Q: What is your warranty policy for these bearings?
A: We provide a standard质保期 against manufacturing defects. Specific terms are detailed in our sales contract, and we handle replacement requests for verified quality issues.
Q: What is the minimum order quantity for this bearing?
A: We accept low minimum orders, with single-unit purchases available for emergency maintenance needs.
Q: How quickly can you ship the 21317-21324cc W33 bearings?
A: Stock items ship within 1-2 business days. We offer express courier for urgent orders and standard shipping options for cost-effective bulk deliveries.
Q: Can you provide custom bearing solutions if this model doesn’t meet my needs?
A: Yes, we support OEM/ODM customization based on your technical drawings or specific performance requirements, including material upgrades and special lubrication configurations.
Ready to order or need a quote?
Send the bearing model, dimensions (d x D x B), and quantity — we’ll get back to you with pricing and lead time.
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Product Summary
- Product Name
- 21317-21324cc W33 Self-Aligning Roller Bearings
- Category
- Spherical Roller Bearing
- Brand
- SKF
- Certification
- ISO 9001 · TS 16949
- Lead Time
- 7 Working Days
Get a Custom Quote
Our engineers will respond within 12 hours with a tailored solution.
Request QuoteGeneral Specifications
| Bearing Type | Spherical Roller Bearing |
| Brand | SKF |
| Quality Standard | ISO 9001 / TS 16949 |
| Precision Grade | P0 / P5 / P6 (custom) |
| Material | Chrome Steel / Stainless |
| Cage Material | Steel / Brass / Polyamide |
| Lubrication | Grease / Oil (specify) |
| Operating Temp. | -40°C to +200°C |
| Min. Order Qty | 1 pc (samples available) |
| Prototype Lead Time | 7 Working Days |
Performance Parameters
| Load Capacity | Contact for C0/Cr values |
| Speed Rating | Contact for ndm limit |
| Vibration Level | Z1 / Z2 / Z3 (custom) |
| Noise Level | V1 / V2 / V3 (custom) |
| Fatigue Life | L10h per ISO 281 |
| Sealing Options | Open / Z / 2Z / RS / 2RS |
Custom Specifications Available
Our engineering team can modify bearing dimensions, materials, seals, and clearances to meet your specific operating requirements. Submit your drawing or spec sheet for a tailored proposal.
Wind Power
Main shaft bearings, gearbox bearings, and generator bearings for onshore and offshore wind turbines.
Mining & Quarrying
Heavy-duty bearings for crushers, conveyors, and rotary equipment in extreme dust and shock-load environments.
Steel & Metallurgy
High-temperature bearings for rolling mills, continuous casting, and furnace applications.
Automotive / EV
Wheel hub bearings, transmission bearings, and e-motor bearings for passenger and commercial vehicles.
Rail Transit
Axle box bearings, traction motor bearings, and gearbox bearings meeting EN/UIC railway standards.
Precision Machinery
High-precision spindle bearings, angular contact bearings, and super-precision bearings for CNC and robotics.
Application Design
EngineeringOur engineers analyze your operating conditions -- load, speed, temperature, environment -- and select or design the optimal bearing solution to maximize service life and reduce total cost of ownership.
Custom Modification
7-Day TurnaroundNeed non-standard dimensions, special materials, or modified clearances? We can modify standard SKF bearings or manufacture fully custom solutions with a 7-day prototype turnaround.
Failure Analysis
DiagnosticsWhen bearings fail prematurely, our team conducts root-cause analysis using advanced diagnostic tools to identify the failure mode and recommend corrective action.
Predictive Maintenance
Up to 40% Less DowntimeWe deploy vibration monitoring, thermal imaging, and oil analysis programs that detect bearing deterioration early -- reducing unplanned downtime by up to 40%.
On-site Installation
Global CoverageProper installation is critical to bearing performance. Our certified technicians provide on-site installation support, alignment verification, and operator training worldwide.
Lifecycle Support
Enterprise SLAFrom initial selection through end-of-life, our dedicated account managers provide scheduled maintenance plans, re-lubrication programs, and replacement forecasting for enterprise clients.
Why SKF China
The engineering partner advantage
7 Days
Prototype Lead Time
vs. 8-12 weeks via standard channels
15+
Certified Engineers
SKF-certified, on-call for your project
50+
Countries Delivered
Reliable global logistics network
Request a Quote
Get a custom quote for
21317-21324cc W33 Self-Aligning Roller Bearings
NDA protected · Free samples for orders > $50K · Reply within 12 hours
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