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 3308-D-Ma for Gearbox with Steel/Copper/Nylon Cage
Double Row Angular Contact Ball Bearing 3308-D-Ma for Gearbox with Steel/Copper/Nylon Cage
In Stock · Ready to Ship
<p>Ensure gearbox reliability with the <strong>Double Row Angular Contact Ball Bearing 3308-D-Ma</strong>—engineered to deliver consistent performance under high radial and axial loads. As an official SKF distributor, we guarantee 100% genuine bearings with full traceability documentation, eliminating customs clearance delays and quality disputes.</p><ul><li>Triple cage options (steel/copper/nylon) optimize for temperature resistance and reduced friction, extending gearbox service life by minimizing wear</li><li>Precision ratings from P0 to P6 ensure perfect alignment in high-speed applications, reducing vibration and downtime risks</li><li>Back-to-back arrangement design enhances rigidity for heavy-duty industrial gearboxes, matching OEM specifications for seamless integration</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 3308-D-Ma for Gearbox with Steel/Copper/Nylon Cage -- 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 |
| Specification | As Your Request |
| Trademark | SKF |
| Origin | Jiangsu China |
| Production Capacity | 1000000 |
Application Industries
| Industry | Typical Equipment |
|---|---|
| Automotive | Gearboxes, Transmission Systems, Differential Units |
| General Machinery | Industrial Gearboxes, Pumps, Compressors |
| Manufacturing | Machine Tools, Conveyor Systems, Production Line Drives |
| Rail Transit | Locomotive Gearboxes, Railcar Axle Systems |
Stop Gearbox Downtime — Genuine 3308-D-Ma Double Row Angular Contact Ball Bearing Delivered Fast
OEM manufacturers know the frustration: counterfeit bearings fail prematurely, causing unexpected gearbox shutdowns and production line losses. Multi-tier distribution channels stretch lead times by 30–50%, making it hard to align with tight production schedules. Even when bearings arrive, technical support for installation and failure analysis is often missing, leaving your team to resolve issues alone.
Genuine SKF 3308-D-Ma Bearings, In Stock and Ready to Ship
As an official SKF distributor, we provide the 3308-D-Ma Double Row Angular Contact Ball Bearing with full traceability and batch consistency — no gray-market risks. Our large centralized warehouse ensures stock availability for immediate dispatch, eliminating delays that disrupt your manufacturing timeline. Whether your gearbox operates in automotive, general machinery, or rail transit applications, this bearing delivers the reliability you need for continuous operation.
Optimal Performance in Gearbox Applications
The 3308-D-Ma Angular Contact Ball Bearing is engineered for gearbox environments where radial and axial loads combine under high rotational speeds. Its double row design provides enhanced rigidity and moment load capacity, critical for maintaining gear mesh accuracy and reducing vibration. Available with steel, copper, or nylon cages, it adapts to varying temperature ranges and lubrication conditions, ensuring consistent performance in both standard and demanding industrial scenarios.
Technical Details That Define Gearbox Reliability
Precision matters in gearbox bearings. The 3308-D-Ma offers multiple precision ratings (P0 to P2) to match your equipment's tolerance requirements — tighter tolerances (P2) minimize runout, reducing noise and extending gear life. Cage material selection directly impacts performance: steel cages excel in high-temperature applications, copper cages handle heavy loads with minimal friction, while nylon cages reduce weight and vibration in moderate-speed operations. Combined with SKF's bearing steel construction, these features ensure the bearing withstands the cyclic stresses of gearbox operation, delivering predictable service life.
The Hidden Cost of Non-Genuine Gearbox Bearings
Choosing unauthorized bearings for your gearbox may seem cost-effective initially, but the long-term consequences are severe. Counterfeit bearings often lack proper heat treatment, leading to premature fatigue and catastrophic failure. A single gearbox breakdown can cost thousands in downtime, repair parts, and lost production — far exceeding the savings from cheaper alternatives. Our 100% genuine SKF 3308-D-Ma bearings come with full certification, ensuring compliance with ISO 9001 and SKF global standards, and reducing the risk of customs clearance issues or quality disputes.
Why Gearbox OEMs Trust Our Bearing Supply
Our position as an official SKF distributor means every 3308-D-Ma bearing can be traced back to SKF's manufacturing process, with complete documentation provided on request. We implement full-process quality management, including incoming inspections and pre-shipment checks, to ensure batch consistency. With a SKF-certified technical team, we offer free model selection support based on your gearbox's operating parameters — from load calculations to lubrication recommendations. Serving over 60 countries, our global logistics network delivers door-to-door, with dedicated account managers tracking every order from warehouse to delivery.
Packaging & Shipping
- Original SKF packaging with individual box protection and batch traceability labels
- Stock items dispatched within 3–7 working days of order confirmation
- Flexible shipping via DHL, FedEx, UPS, air freight, or sea freight based on urgency
- Real-time tracking numbers provided once shipment is confirmed
- Minimum order quantity of 1 unit, supporting both emergency repairs and bulk OEM requirements
Get Your 3308-D-Ma Bearing Today
Don't let gearbox downtime affect your production targets. Send us your 3308-D-Ma order quantity and gearbox operating details — our team will issue a formal quotation with traceability certificates within 24 hours. With stock on hand, we can get your bearings delivered fast, minimizing the risk of extended downtime.
Frequently Asked Questions
Q: Are these genuine SKF 3308-D-Ma bearings?
A: Yes, we are an official SKF authorized distributor. Every 3308-D-Ma bearing comes with full traceability documentation and SKF certification to confirm authenticity.
Q: How do I confirm if the 3308-D-Ma is suitable for my gearbox?
A: Provide your gearbox model, operating speed, load conditions, and temperature range. Our SKF-certified technical team will verify compatibility and recommend the optimal cage material.
Q: What is the warranty for the 3308-D-Ma bearing?
A: We offer the standard SKF manufacturer warranty, covering manufacturing defects. In the rare event of a quality issue, we provide unconditional replacement or refund.
Q: What is the minimum order quantity for the 3308-D-Ma?
A: We accept orders starting from 1 unit, making it suitable for emergency repairs, small-batch trials, or large OEM production runs.
Q: How quickly can you ship the 3308-D-Ma bearing?
A: Stock items are shipped within 3–7 working days. For urgent requirements, we can arrange expedited logistics with DHL/FedEx for faster delivery.
Q: How can I verify the authenticity of the 3308-D-Ma bearing upon delivery?
A: Check the SKF packaging for holographic labels, laser-etched part numbers on the bearing, and scan the QR code to access SKF's official traceability records. We also provide a copy of the SKF authorization certificate with your order.
Ready to order or need a quote?
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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