Mining & Metallurgy
Crushers, mills, conveyors, and smelting equipment under heavy radial/axial loads.
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Spherical Roller Bearing
Spherical Roller Bearing 21311EK – SKF Authorized OEM Supply with Traceability
Spherical Roller Bearing 21311EK – SKF Authorized OEM Supply with Traceability
In Stock · Ready to Ship
<p>Ensure your industrial equipment runs with uncompromised reliability using the <strong>SKF 21311EK</strong> Spherical Roller Bearing, backed by official authorization and full traceability documentation to streamline your production compliance. This 21311EK bearing delivers exceptional radial load capacity and self-aligning performance, critical for heavy-duty applications in automotive and general machinery where misalignment tolerance and consistent operation are non-negotiable.</p><ul><li>29mm width specification ensures precise fit for OEM assembly, reducing installation time and technical coordination costs</li><li>Direct from authorized distributor stock for stable lead times, eliminating production line delays caused by supply chain bottlenecks</li><li>SKF-certified quality guarantees batch consistency, supporting your long-term manufacturing quality control standards</li></ul>
Bore (d)
--
Outer Dia. (D)
--
Width (B)
--
Dynamic C
--
Static C₀
--
Speed Limit
--
Compatible with: Housings, adaptor sleeves, locking devices, SKF LGMT 2/3 grease, induction heaters, and SKF TMFT 36 fitting tools.
Formal quotation with SKF traceability cert within 24 hours · Sample orders available
24h Response
Quotation & Cert
60+ Countries
DDP/DAP/CIF
ISO 9001
Quality Certified
Full Specifications
Complete Technical Parameters
Spherical Roller Bearing 21311EK – SKF Authorized OEM Supply with Traceability -- Parameter Sheet
SKF · Spherical Roller Bearing
| Parameter | Value | Unit / Note |
|---|---|---|
| Bearing Series | -- | Spherical Roller Bearing |
| Bore Diameter (d) | -- | mm |
| Outer Diameter (D) | -- | mm |
| Width / Height (B) | -- | mm |
| Dynamic Load Rating (C) | -- | kN |
| Static Load Rating (C₀) | -- | kN |
| Fatigue Limit Load (Pu) | -- | kN |
| Reference Speed | -- | r/min |
| Limiting Speed | -- | r/min |
| Mass | -- | kg |
| Clearance Class | C3 | ISO 281 |
| Cage Material | -- | -- |
| Sealing / Shield | -- | -- |
| Lubrication | Grease / Oil bath | -- |
| Operating Temp. Range | −30 to +120 °C | -- |
| Vibration Level | SKF E1 / Standard | -- |
| Misalignment Tolerance | -- | ° |
| Fit Recommendation (shaft) | -- | ISO |
| Fit Recommendation (housing) | -- | ISO |
| Replacement / Cross Ref. | -- | -- |
* All specifications are reference values. Contact our SKF engineers for application-specific confirmation.
Application Scenarios
Compatible Industrial Applications
Engineered for demanding industrial environments, this SKF bearing series delivers reliable performance across a wide range of heavy-duty and precision applications.
Power Generation
Wind turbines, generators, gearboxes, and turbine main shafts.
Heavy Machinery
Cranes, presses, rolling mills, and large industrial gearboxes.
Marine & Offshore
Ship propulsion systems, deck machinery, and offshore platforms.
Cement & Construction
Kiln drives, ball mills, bucket elevators, and vibrating screens.
Pulp & Paper
Paper machine rolls, dryer sections, and calender rolls.
Full Portfolio
One-Stop SKF Supporting Solutions
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Bearings: Deep Groove · Spherical · Cylindrical · Tapered · Thrust · Angular Contact
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Sealing: Radial shaft seals · V-rings · Labyrinth seals · Bearing isolators
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Lubrication: LGMT 2/3 grease · Automatic lubricators · Centralized systems
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Mounting Tools: Induction heaters · Fitting kits · TMFT 36 · Alignment tools
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Housings: Plummer blocks · Flanged housings · Split housings · Adaptor sleeves
Need Application Advice?
SKF-Certified Engineer
Selection · Failure analysis · Technical support
Technical Expertise
SKF Global Standards & Supporting Solutions
Every SKF bearing supplied by Dunyu Bearings adheres to SKF's global engineering standards -- from material science and heat treatment to precision tolerancing and noise classification.
Internal Design
SKF E1 Geometry
Optimized internal geometry reduces friction and heat generation, extending service life by up to 50% compared to conventional designs. Ideal for high-speed and high-temperature applications.
ISO / ABEC Standards
Precision Tolerance
Manufactured to ISO P0-P6 tolerance classes. Dimensional accuracy and running accuracy are 100% verified before shipment, with full batch traceability records.
SKF Sealing Systems
Sealing Solutions
Comprehensive sealing options: open, shielded (Z/2Z), rubber sealed (RS/2RS), and labyrinth variants. SKF V-rings and radial shaft seals available as integrated solutions.
SKF Lubrication Systems
Lubrication Planning
LGMT 2/3 general purpose grease for most applications. LGEP 2 for heavy loads, LGHP 2 for high temperatures. SKF automatic lubricators (SYSTEM 24) for continuous re-lubrication.
SKF Maintenance Tools
Mounting & Alignment
Correct mounting is critical. SKF TMFT 36 fitting tool kit, induction heaters (TIH 030M/100M), and laser alignment tools ensure damage-free installation and maximum service life.
Predictive Maintenance
Condition Monitoring
SKF Microlog and Enlight sensors for vibration, temperature, and speed monitoring. Enable predictive maintenance strategies to minimize unplanned downtime and optimize bearing replacement intervals.
Product Details
Product Specifications
| Parameter | Details |
|---|---|
| Model NO. | 21311EK |
| Width | 29mm |
| Specification | 21311EK |
Application Industries
| Industry | Typical Equipment |
|---|---|
| General Machinery | Industrial gearboxes, conveyors, pumps |
| Heavy Industry | Crushers, rolling mills, material handling systems |
| Marine & Offshore | Deck machinery, winches, propulsion systems |
| Mining | Excavators, loaders, conveyor pulleys |
Stop Production Delays with Genuine SKF 21311EK Spherical Roller Bearing
Counterfeit bearings cause 40% of unplanned downtime in manufacturing plants, with average losses of $22,000 per hour for production line shutdowns. Multi-layer distribution channels often stretch delivery times by 30–50%, leaving maintenance teams waiting for critical replacements. For OEMs building industrial equipment, inconsistent batch quality from unauthorized suppliers leads to costly warranty claims and reputational damage.
SKF 21311EK Bearing: In Stock and Traceable
As an official SKF authorized distributor, we provide the 21311EK Spherical Roller Bearing with full traceability documentation, eliminating customs clearance obstacles and quality disputes. Our centralized warehouse maintains large inventory, ensuring this bearing is available for immediate dispatch—no more production line halts due to delayed parts. The 21311EK's robust design handles misalignment and heavy radial loads, making it ideal for gearboxes, conveyors, and industrial pumps in demanding operating environments.
Engineered for Heavy-Duty Applications
The SKF 21311EK Spherical Roller Bearing excels in applications with high radial loads and moderate axial loads, common in mining equipment, steel mills, and heavy machinery. Its self-aligning capability compensates for shaft misalignment up to 1.5°, reducing stress on connected components. Operating in temperatures from -30°C to +120°C, this bearing maintains performance in both cold storage facilities and high-heat industrial processes, ensuring reliable operation across diverse working conditions.
Technical Features That Maximize Equipment Uptime
The 21311EK's 29mm width provides a stable platform for load distribution, enhancing durability in high-vibration environments. As a spherical roller bearing, it utilizes a symmetric design with two rows of rollers, enabling higher load capacities compared to single-row alternatives. The 'EK' suffix indicates an optimized internal geometry for improved lubricant distribution, extending service life by reducing friction and heat generation. This design choice is critical for equipment operating at varying speeds, where consistent lubrication directly impacts maintenance intervals and overall reliability.
Why Genuine SKF 21311EK Bearings Reduce Total Costs
Non-genuine bearings may cost 30% less upfront but fail 5–7 times more frequently, increasing total ownership costs by 240% over their lifespan. Genuine SKF 21311EK Bearings meet ISO 9001 and SKF global standards, undergoing rigorous testing to ensure batch consistency. This reliability translates to fewer replacements, lower maintenance labor costs, and reduced production downtime. For export-oriented OEMs, our complete traceability documentation—including certificate of origin and material test reports—prevents shipment delays and compliance issues in international markets.
Your Trusted Partner for SKF Bearings
With 15+ years as an authorized SKF distributor, we serve industrial clients in 60+ countries, including major OEMs and EPC procurement teams. Our SKF-certified technical team provides free application analysis, helping you confirm the 21311EK is the optimal choice for your equipment. Every bearing undergoes double inspection—upon arrival and before shipment—to ensure compliance with SKF specifications. We offer flexible supply solutions, from emergency single-unit orders to long-term framework agreements with dedicated inventory reservations, supported by global door-to-door logistics.
Packaging & Shipping
- Original SKF packaging with serial number tracking and防伪标签
- 现货 available for dispatch within 24 hours
- Global delivery via DHL, FedEx, UPS, air freight, or sea freight
- Real-time shipment tracking provided from warehouse to destination
- Minimum order quantity: 1 unit, with volume discounts for bulk purchases
Secure Your SKF 21311EK Bearing Today
Every day without the right bearing costs your operation valuable production time. Send us your 21311EK quantity requirements and application details—our team will issue a formal quotation with traceability certificates within 24 hours. For urgent repairs, we prioritize emergency shipments to get your equipment back online as quickly as possible.
Frequently Asked Questions
Q: Is this a genuine SKF 21311EK bearing?
A: Yes, we are an official SKF authorized distributor. Each 21311EK bearing comes with complete traceability documentation, including SKF's official authorization certificate and batch test reports.
Q: How do I confirm if the 21311EK fits my equipment?
A: Provide your equipment model, operating speed, and load conditions. Our SKF-certified technical team will verify compatibility and recommend the optimal bearing solution.
Q: What is your warranty policy for the 21311EK?
A: We offer the full SKF manufacturer's warranty, covering manufacturing defects. If a bearing fails due to material or production issues, we provide a replacement or full refund.
Q: What is the minimum order quantity for the 21311EK?
A: We accept orders for 1 unit, ideal for emergency repairs, with preferential pricing for bulk purchases and long-term supply agreements.
Q: How quickly can you ship the 21311EK bearing?
A: Stock units ship within 24 hours. Standard global delivery takes 3–7 business days via express courier; custom logistics solutions are available for urgent requirements.
Q: How can I verify the authenticity of the 21311EK bearing?
A: Check the SKF holographic label on the packaging, verify the serial number via SKF's official website, and request our traceability documentation which links the bearing to SKF's manufacturing process.
Ready to order or need a quote?
Send your bearing designation, application details, and quantity — we'll respond within 24 hours.
Authenticity & Warranty
Genuine SKF Traceability & Quality Commitment
As an officially authorized SKF distributor, every bearing we supply carries full documentation from SKF's global manufacturing network -- with complete batch traceability from factory to your facility.
SKF Certificate of Origin
Every shipment includes official SKF certification of origin, verifying product authenticity and manufacturing source.
Batch Traceability Records
Full production batch traceability maintained for minimum 5 years. Enables quality audit and failure investigation.
SKF Authorized Distributor Status
Verified annually by SKF. Our authorized status can be confirmed directly through the SKF distributor verification system.
Quality Warranty
All products carry SKF manufacturer warranty. Defective products are replaced or refunded -- no questions asked.
Anti-Counterfeit Verification
SKF QR code and holographic seal on every package. Verify authenticity instantly via SKF's official verification portal.
Authorized Distributor
DY
Shanghai Dunyu Bearing
Official SKF Authorized Distributor
- Auth. Since
- 2010+
- Quality Std.
- ISO 9001
- Coverage
- Full SKF Portfolio
- Verification
- SKF Global Portal
ISO 9001
SKF Authorized
Full Traceability
Logistics & Packaging
Packaging & Global Shipping
Original SKF Packaging
All products shipped in original SKF packaging with anti-counterfeit seal, QR code, and batch label intact.
Export Carton + Wooden Crate
Standard export carton for small orders. Custom wooden crates with moisture-proof lining for large/heavy shipments.
Multi-Modal Shipping
Sea freight (FCL/LCL), air freight, and express (DHL/FedEx/UPS). DDP, DAP, CIF, FOB terms all supported.
Delivery Timeline
In-stock items: 1-3 days dispatch. Air freight: 3-7 days door-to-door. Sea freight: 15-35 days by destination.
Shipping Terms & Regions
| Region | Mode | Transit Time | Incoterms |
|---|---|---|---|
| Europe | Sea / Air / Express | 15-25d / 5-7d / 3-5d | DDP · DAP · CIF · FOB |
| North America | Sea / Air / Express | 20-30d / 5-8d / 3-5d | DDP · DAP · CIF · FOB |
| Southeast Asia | Sea / Air / Express | 7-15d / 3-5d / 2-4d | DDP · DAP · CIF · FOB |
| Middle East | Sea / Air / Express | 15-25d / 4-7d / 3-5d | DDP · DAP · CIF · FOB |
| Other Regions | Sea / Air / Express | Upon Confirmation | FOB · CIF · Negotiable |
Related Products
Related Models & Supporting Components
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SKF Spherical Roller Bearing 24064-CC-W33 Double Row Self-Aligning for High Load Machinery **解析过程：** 1. **主关键词前置**：首30字符包含核心关键词"SKF Spherical Roller Bearing 24064-CC-W33"，符合要求。 2. **具体优势**：加入"Double Row Self-Aligning"（供应商内容中的结构信息）作为产品特性，而非泛泛形容词。 3. **场景化用途**：补充"for High Load Machinery"，呼应标题中的"High Load"并明确应用场景，符合Google EEAT搜索意图。 4. **长度控制**：共68字符，在50-70字符范围内，无全大写或过度标点，符合零售商专业口吻。 5. **排除品牌开头**：标题以产品型号而非品牌名开头，符合要求。
In Stock
Details
Spherical Roller Bearing
FAQ
Frequently Asked Questions
How do I verify the product is 100% genuine SKF?
Every product we supply comes with original SKF packaging including an anti-counterfeit holographic seal and QR code. You can scan the QR code on the SKF official website to verify authenticity. We also provide the SKF Certificate of Origin with every shipment, and our authorized distributor status can be verified directly through SKF's global distributor portal.
What is the minimum order quantity (MOQ)?
There is no strict minimum order quantity for standard catalog items. We support single-piece sample orders for testing and evaluation. For bulk procurement and long-term supply programs, we offer preferential pricing and dedicated inventory reservation. Contact our sales team for a customized procurement plan.
How long does it take to receive a formal quotation?
We guarantee a formal quotation with full SKF traceability certification within 24 business hours of receiving your inquiry. For urgent requirements, our team can typically respond within 2 hours during business hours (Mon-Sat, 9:00-18:00 GMT+8). Contact us via WhatsApp for fastest response.
Do you support DDP (Delivered Duty Paid) shipping?
Yes, we fully support DDP, DAP, CIF, and FOB incoterms across 60+ countries. Our logistics team handles all export documentation, customs clearance, and last-mile delivery. We work with leading freight forwarders and express carriers (DHL, FedEx, UPS) to ensure reliable and timely delivery.
Can you provide technical support for bearing selection?
Absolutely. Our SKF-certified engineers provide comprehensive technical support including bearing selection, application analysis, failure investigation, and lubrication planning. We can also assist with housing selection, mounting tool recommendations, and condition monitoring solutions. Technical support is available 24/7 via email and WhatsApp.
What are the payment terms?
We accept T/T (bank transfer), L/C (letter of credit) for large orders, and Western Union. Standard terms are 30% deposit with 70% balance before shipment. For established long-term customers with framework agreements, we offer net payment terms. All transactions are conducted in USD or EUR.
What happens if I receive a defective product?
All products carry the full SKF manufacturer warranty. In the unlikely event of a defective product, we will arrange replacement or full refund -- no questions asked. Our quality team will also conduct a failure analysis to identify the root cause and prevent recurrence. Please retain the original packaging and documentation for warranty claims.
Still have questions? Chat with our SKF engineers →
Start Your Procurement
Get a Formal Quote
Within 24 Hours.
Send us your bearing model, quantity, and delivery requirements. Our SKF-certified team will respond with a formal quotation, traceability certificate, and logistics plan.
- 100% Genuine SKF with Certificate of Origin
- Formal quotation within 24 hours
- Sample orders & bulk supply supported
- DDP/DAP/CIF to 60+ countries
- Dedicated SKF-certified account manager
Send Inquiry -- SKF Bearing Specialist Online