Mining & Metallurgy
Crushers, mills, conveyors, and smelting equipment under heavy radial/axial loads.
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100% Genuine SKF
Full Traceability
ISO 9001 Certified
SKF Authorized
Deep Groove Ball Bearing
Deep Groove Ball Bearing 6221 6321 SKF 105x190x36mm for Industrial Machinery OEM
Deep Groove Ball Bearing 6221 6321 SKF 105x190x36mm for Industrial Machinery OEM
In Stock · Ready to Ship
<p>Ensure uninterrupted industrial machinery performance with SKF 6221/6321 deep groove ball bearings, engineered to deliver consistent radial load handling and extended service life in demanding OEM applications. As an <strong>official SKF authorized distributor</strong>, we guarantee 100% genuine bearings with full traceability documentation, eliminating supply chain risks for your production line.</p><ul><li>Precision 105x190x36mm dimensions with 0° contact angle optimize rotational stability in high-speed machinery</li><li>High-grade bearing steel construction ensures durability under heavy loads, reducing unplanned downtime</li><li>Streamlined vertical supply chain enables faster bulk delivery compared to traditional multi-tier distributors</li></ul>
Bore (d)
--
Outer Dia. (D)
--
Width (B)
--
Dynamic C
--
Static Câ‚€
--
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
Deep Groove Ball Bearing 6221 6321 SKF 105x190x36mm for Industrial Machinery OEM -- Parameter Sheet
SKF · Deep Groove Ball Bearing
| Parameter | Value | Unit / Note |
|---|---|---|
| Bearing Series | -- | Deep Groove Ball Bearing |
| Bore Diameter (d) | -- | mm |
| Outer Diameter (D) | -- | mm |
| Width / Height (B) | -- | mm |
| Dynamic Load Rating (C) | -- | kN |
| Static Load Rating (Câ‚€) | -- | 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. | 6221 6321 |
| Rows Number | Single |
| Load Direction | Radial Bearing |
| Material | Bearing Steel |
| Contact Angle | 0° |
| Specification | 105×190×36mm |
| Trademark | SKF |
| Origin | Japan |
| HS Code | 8482102000 |
| Package Size | 21.00cm × 21.00cm × 5.60cm |
| Package Gross Weight | 3.890kg |
Application Industries
| Industry | Typical Equipment |
|---|---|
| General Machinery | Electric Motors, Gearboxes, Pumps, Fans |
| Industrial Manufacturing | Conveyor Systems, Compressors, Machine Tools |
| Automotive | Alternators, Water Pumps, Transmission Systems |
| Rail Transit | Train Axle Boxes, Auxiliary Power Units |
Stop Production Delays with Genuine SKF 6221 6321 Deep Groove Ball Bearings
OEM manufacturers know the cost of bearing failure – unplanned downtime, production line shutdowns, and quality disputes from counterfeit parts. When your industrial machinery relies on precise radial load handling, using uncertified bearings with unknown material quality risks equipment damage and lost revenue. Multi-tier distribution channels only worsen the problem, stretching lead times by 30-50% and leaving you scrambling to meet production schedules.
Genuine SKF Bearings, In Stock and Traceable
As an official SKF authorized distributor, we provide 100% genuine Deep Groove Ball Bearings 6221 and 6321, each with full traceability documentation to eliminate customs clearance obstacles. Our centralized warehouse stocks these 105x190x36mm bearings for immediate dispatch, ensuring your production lines stay operational. Whether for electric motor spindles, gearbox assemblies, or conveyor systems, these single-row radial bearings deliver consistent performance in industrial machinery OEM applications.
Optimal Performance in Demanding Industrial Environments
The SKF 6221 and 6321 bearings excel in high-speed rotating equipment where radial load capacity is critical. With a 0° contact angle and bearing steel construction, they handle continuous operation in general machinery, automotive manufacturing, and rail transit systems. Their 105mm bore diameter and 190mm outer diameter provide the perfect balance of load distribution and compact design, making them ideal for applications requiring reliable power transmission and minimal maintenance.
Technical Details That Maximize Machinery Uptime
The 36mm width of these SKF bearings ensures stable load distribution across the raceway, reducing stress concentrations during high-torque operation. Constructed from high-grade bearing steel, they maintain dimensional stability even under temperature fluctuations common in industrial settings. The single-row design optimizes friction characteristics, supporting efficient energy transfer in electric motors and pumps. While dynamic and static load ratings follow SKF's global standards, their precision manufacturing guarantees consistent performance batch after batch – a critical factor for OEMs matching bearings to production tolerances.
Why Genuine SKF Bearings Reduce Total Cost of Ownership
Counterfeit bearings may offer lower upfront prices, but they typically fail 40-60% earlier than genuine SKF products, leading to expensive repairs and production losses. Our ISO 9001-compliant quality management ensures each bearing meets SKF's global standards for material purity and dimensional accuracy. By choosing authorized supply channels, you avoid the hidden costs of gray-market parts: incomplete traceability documents, inconsistent performance, and lack of manufacturer support. For industrial machinery OEMs, the reliability of genuine SKF 6321 and 6221 bearings translates directly to lower warranty claims and higher customer satisfaction.
Your Trusted Partner for SKF OEM Solutions
With over a decade serving 60+ countries, we combine global reach with localized service. Our SKF-certified technical team provides free model selection support, helping you confirm the 105x190x36mm bearing is the right fit for your equipment. We offer small-batch trial orders for quality verification before mass production, and our dedicated account managers track every order from warehouse to delivery. As part of our commitment to supply chain resilience, we maintain strategic inventory for emergency delivery – ensuring you never wait weeks for critical replacement parts.
Packaging & Shipping
- Original SKF packaging with authentication labels
- 3-7 business days delivery for in-stock items
- Global door-to-door logistics via DHL, FedEx, or UPS
- Real-time tracking provided for all shipments
- Minimum order quantity: 1 piece, supporting emergency maintenance
Get Your SKF 6221 6321 Bearings Delivered Fast
Every day of equipment downtime costs your business revenue. Send us your bearing model list, application parameters, and order volume today – we’ll issue a formal quotation with traceability certificates within 24 hours. Our streamlined OEM process ensures you get the right bearings when you need them, without the delays of traditional distribution channels.
Frequently Asked Questions
Q: Are these genuine SKF bearings?
A: Yes, we are an official SKF authorized distributor. Each bearing comes with certification and full traceability documentation to verify authenticity.
Q: How do I confirm if the 6221/6321 is compatible with my machinery?
A: Provide your equipment model or operating parameters (load, speed, temperature), and our SKF-certified technical team will verify compatibility at no cost.
Q: What is your warranty policy?
A: All bearings come with SKF's standard manufacturer warranty, covering manufacturing defects with unconditional replacement.
Q: What is the minimum order quantity?
A: We accept orders for 1 piece, supporting both emergency repairs and small-batch production needs.
Q: How long does shipping take?
A: In-stock bearings ship within 3-7 business days via DHL, FedEx, or UPS, with tracking provided for all orders.
Q: How can I verify the bearing's authenticity?
A: Each bearing includes SKF's original packaging with security labels. We also provide full traceability documents and can assist with verification through SKF's official channels.
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
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