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
Angular Contact Bearing
Double Row Angular Contact Ball Bearing 3311-D-Ma for Automotive Transmission Systems
Double Row Angular Contact Ball Bearing 3311-D-Ma for Automotive Transmission Systems
In Stock · Ready to Ship
<p>Ensure seamless automotive transmission performance with the <strong>Double Row Angular Contact Ball Bearing 3311-D-Ma</strong>, engineered to deliver exceptional radial and axial load handling for precise power transfer in high-torque systems. As an official SKF distributor, we guarantee 100% genuine bearings with full traceability documentation, eliminating compliance hurdles and counterfeit risks.</p><ul><li>Double row angular contact design provides 30% higher rigidity than single row alternatives, ideal for transmission input/output shafts</li><li>Available with steel, copper, or nylon cages to match specific lubrication and temperature requirements</li><li>Precision ratings from P0 to P6 ensure consistent batch performance, supporting stable production scheduling with reliable lead times</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
Double Row Angular Contact Ball Bearing 3311-D-Ma for Automotive Transmission Systems -- Parameter Sheet
SKF · Angular Contact Bearing
| Parameter | Value | Unit / Note |
|---|---|---|
| Bearing Series | -- | Angular Contact 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. | Double Row Angular Contact Ball Bearing |
| Separated | Separated |
| Rows Number | Double |
| Load Direction | Radial Bearing |
| Material | Bearing Steel |
| Precision Rating | P0, P2, P4, P5, P6 |
| Type | Ball |
| Structure | Angular Contact |
| Cage | Steel Cage, Copper Cage, Nylon Cage |
| Lubrication | Oil, Grease |
| Transport Package | Carton, Pallet |
| Trademark | SKF |
| Origin | Jiangsu China |
Application Industries
| Industry | Typical Equipment |
|---|---|
| Automotive | Transmission Systems, Gearboxes, Drivetrains |
| Industrial Machinery | Power Transmission Units, Precision Gearboxes |
Eliminate Transmission Downtime with SKF 3311-D-Ma Double Row Angular Contact Ball Bearings
Automotive OEMs and maintenance teams know the cost of transmission failures—unplanned downtime, production delays, and warranty claims. Counterfeit bearings often fail prematurely under radial and axial loads, while multi-tier distributors struggle to maintain consistent batch quality for transmission assemblies. Sourcing reliable double row angular contact ball bearings for critical drivetrain components shouldn’t mean compromising on traceability or delivery speed.
Authorized SKF 3311-D-Ma Bearings: In Stock and Fully Traceable
As an official SKF distributor, we provide the 3311-D-Ma Double Row Angular Contact Ball Bearing with complete supply chain transparency. Our centralized warehouse stocks genuine SKF bearings, ensuring batch consistency for automotive transmission systems. Each unit comes with certification documents, eliminating customs clearance issues and quality disputes. Whether for high-volume OEM production or emergency maintenance, we deliver bearings that meet SKF’s global standards for material purity and dimensional accuracy.
Engineered for Automotive Transmission Performance
The SKF 3311-D-Ma is designed to handle combined radial and axial loads in high-torque transmission environments. Its double row angular contact structure provides superior rigidity compared to single row designs, making it ideal for gearbox input/output shafts and differential assemblies. Operating within automotive transmission temperature ranges, this bearing maintains stable performance under continuous load cycles, reducing the risk of premature wear and power loss.
Key Technical Features That Matter
The bearing’s precision rating options (P0 to P6) allow customization for specific transmission tolerances—P6 grade ensures minimal runout for high-speed gear synchronization, while P0 suits general industrial applications. Available cage materials (steel, copper, nylon) address varying temperature and lubrication needs: steel cages excel in high-heat environments, nylon reduces friction in noise-sensitive applications, and copper offers enhanced durability for heavy-duty transmissions. The separated design facilitates easy installation and maintenance, a critical advantage during assembly line operations.
Why Genuine SKF Bearings Lower Total Cost of Ownership
Non-genuine bearings may cost less upfront, but they often lack the material quality and manufacturing precision of SKF products. This leads to increased vibration, higher energy consumption, and shorter service life—costing more in replacement parts and labor over time. Our 100% genuine SKF 3311-D-Ma bearings, backed by ISO 9001 quality management, reduce long-term maintenance costs by delivering predictable performance and extended service intervals, directly impacting your transmission system’s reliability and profitability.
Why Automotive Manufacturers Choose Our SKF Bearings
Our authorized distribution status means every SKF 3311-D-Ma bearing is traceable to its production batch, with full documentation available upon request. Our SKF-certified technical team provides application-specific guidance, from bearing selection to installation best practices, helping you avoid common transmission assembly errors. With operations in 60+ countries, we offer global door-to-door logistics, ensuring on-time delivery even for urgent orders. Our four-step OEM cooperation process—quotation within 24 hours, sample testing, framework agreements, and dedicated account management—streamlines procurement for automotive production lines.
Packaging & Shipping
- Original SKF packaging with product certification and batch traceability documents
- Secure carton and pallet packaging to prevent damage during transit
- Global logistics options including DHL, FedEx, UPS, air freight, and sea freight
- Real-time shipment tracking provided for all orders
- Flexible order quantities, from single units for emergency repairs to bulk OEM production runs
Get Your Transmission Bearings Delivered On Time
Don’t let bearing supply issues disrupt your production schedule. Send us your SKF 3311-D-Ma quantity requirements and transmission application details today, and our team will provide a formal quotation within 24 hours. With our large inventory, we can ship immediately—keeping your assembly lines running and reducing downtime risks.
Frequently Asked Questions
Q: Are these genuine SKF bearings?
A: Yes, we are an official SKF authorized distributor. Every bearing comes with full traceability documentation and brand certification to confirm authenticity.
Q: How do I confirm if the 3311-D-Ma fits my transmission system?
A: Provide your transmission model, shaft dimensions, and operating parameters (load, speed, temperature), and our SKF-certified technical team will verify compatibility.
Q: What is the warranty policy?
A: All SKF bearings are covered by the manufacturer’s warranty against defects in materials and workmanship. We handle warranty claims directly with SKF for efficient resolution.
Q: What is the minimum order quantity?
A: We accept orders for 1 unit, making us suitable for both emergency repairs and large-scale OEM production requirements.
Q: How long does shipping take?
A: In-stock bearings ship within 3-7 business days via your preferred logistics method. For bulk orders, we provide a confirmed delivery timeline in our quotation.
Q: How can I verify the bearing’s authenticity?
A: Each bearing includes SKF’s laser-etched part number, packaging with security features, and a batch traceability certificate. We can also 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