"When a critical piece of rotating equipment failed, we needed a mixed SKF list urgently. The supplier consolidated the order, shipped same-day, and the parts were on our plant floor in two days. The equipment was back online before the end of the shift."




Buying for several machines? Add this model to one inquiry with the other SKF bearings, housings and accessories on your list. Each line keeps its own designation, quantity and specification.
Send Your Full ListAbout this SKF bearing
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 Suitability
| Industry | Typical Applications |
|---|---|
| Gearbox | High precision gear transmission systems |
Looking for a Reliable Double Row Angular Contact Ball Bearing 3309-D-Ma? Here's What Matters
Selecting the right bearing for gearbox applications can be challenging. Many procurement teams face issues with bearing precision that leads to excessive vibration, or struggle to find suppliers who can guarantee consistent quality for critical components. When dealing with high precision gearboxes, even minor deviations in bearing specifications can result in costly downtime and repairs.
Built for Reliable, Long-Term Performance in Gearboxes
This Double Row Angular Contact Ball Bearing SKF 3309-D-Ma addresses these challenges with its high precision rating and robust construction. As a supplier with ISO 9001认证生产/检验流程, we ensure that each bearing meets strict quality standards. Our extensive inventory covers a wide range of models, including this gearbox-specific bearing, allowing for quick access to the parts you need without unnecessary delays.
Optimal Performance in High Precision Gearbox Environments
This bearing is specifically designed for gearbox applications where high precision and reliable load handling are essential. It operates effectively under radial loads, making it suitable for the dynamic forces encountered in gear transmission systems. The double row angular contact structure provides enhanced rigidity, ensuring stable performance even in demanding operating conditions where precision alignment is critical.
Engineering Details That Impact Gearbox Performance
The choice of bearing steel as the primary material ensures excellent durability and resistance to wear, which is vital for gearbox components that experience continuous stress. The availability of multiple precision ratings (P0, P2, P4, P5, P6) allows you to select the exact level of accuracy needed for your specific gearbox application—higher precision grades like P2 or P4 are ideal for high-speed or high-torque scenarios where minimal runout is required. The various cage options (Steel, Copper, Nylon) offer flexibility to match different operating temperatures and load requirements, ensuring optimal performance across diverse gearbox designs.
Why Bearing Selection Affects Total Cost in Gearbox Systems
Choosing the right High Precision Bearing for your gearbox goes beyond upfront costs. A bearing with incorrect precision or material can lead to premature failure, resulting in unplanned downtime, costly repairs, and potential damage to other gearbox components. This SKF 3309-D-Ma for Gearbox is engineered to provide long service life under demanding conditions, reducing the total cost of ownership by minimizing maintenance intervals and replacement needs. Properly selected bearings also contribute to smoother gear operation, improving overall system efficiency and extending the lifespan of the entire gearbox.
Quality You Can Rely On for Critical Applications
Our manufacturing and inspection processes adhere to ISO 9001 standards, ensuring consistent quality from raw material selection to final product testing. Each bearing undergoes rigorous checks for dimensions, hardness, and surface treatment to meet the specified requirements. We provide a warranty period to cover manufacturing defects, giving you confidence in your purchase. With access to a comprehensive range of brands and models, we can source bearings according to your exact specifications. Our现货库存丰富 allows for prompt delivery, ensuring you get the parts you need when you need them.
Packaging & Shipping
- Transport package includes carton and pallet for secure handling during transit
- 现货库存 available for quick shipping of standard models
- Multiple logistics options including express, air, and sea freight to meet your delivery timeline
- Low minimum order quantity supported, accommodating both small and large volume采购需求
Request a Quote for SKF 3309-D-Ma Bearing
To get started, please provide the bearing model (3309-D-Ma), required quantity, and delivery destination. Our team will promptly provide you with pricing and lead time information. We handle all types of bearing采购需求, so whether you need this specific model or other gearbox bearings, we can assist with your order.
Frequently Asked Questions
Q: Do you support procurement of other bearing brands and models?
A: Yes, we offer comprehensive procurement services covering a wide range of international and domestic brands. We can source bearings according to your specified brand, model, or technical requirements.
Q: How can I confirm if this bearing is suitable for my gearbox?
A: Please provide your gearbox specifications, including required dimensions (d x D x B), load capacity, and operating conditions. Our technical team will verify compatibility with the SKF 3309-D-Ma bearing.
Q: What is your warranty policy for bearings?
A: We provide a warranty period covering manufacturing defects. The specific terms are detailed in our sales contract, and defective products can be replaced or returned within the warranty period.
Q: What is the minimum order quantity for this bearing?
A: We support low minimum order quantities, allowing you to purchase small batches for testing or maintenance needs, as well as large volumes for production requirements.
Q: What are the shipping times and available logistics options?
A: For in-stock items, we can ship immediately. Delivery times vary by location, with express, air, and sea freight options available to meet your specific timeline requirements.
Q: Do you offer OEM/ODM customization services for bearings?
A: Yes, we can provide customized bearing solutions according to your drawings, specifications, or unique application requirements.
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.
One SKF inquiry. Every line accounted for.
Electrical Equipment is an Authorized SKF Distributor that turns mixed equipment lists into itemised, comparable quotes and consolidated supply for industrial plants, maintenance contractors and distributors worldwide.
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Broad SKF range in one purchase
Ball, roller, needle, thrust, mounted and precision bearings handled in a single industrial order.
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Mixed equipment lists
One inquiry covers parts for different machines, with designations and internal stock codes matched line by line.
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Standard and precision flagged
Routine replacement bearings and special-specification models are labelled separately on your quote.
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No unapproved substitutes
Identification gaps are closed before quoting; any alternative is listed separately for your approval.
Related SKF bearings
These SKF models share the category of Double Row Angular Contact Ball Bearing 3309-D-Ma SKF for Gearbox High Precision and can be quoted on the same inquiry.
01 Double Row Angular Contact Ball Bearing 3312 A-2Z/C3 MT33 for Gearbox High Precision
View details
02 Cylindrical Roller Bearing NN 3017 TN9/SP Double Row High Precision for Industrial Machinery
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03 Double Row Cylindrical Roller Bearing NUP211-EC J C3 for Industrial Gearboxes High Precision
View details
04 Double Row Cylindrical Roller Bearing Nu320 Ec J/C3 for High Precision Main Shaft Applications
View detailsWhere this bearing is used
Double Row Angular Contact Ball Bearing 3309-D-Ma SKF for Gearbox High Precision is specified in the applications below. Open an application to see the matching SKF bearing categories.
Trusted by plants and maintenance teams
Industrial buyers in the USA, Mexico, Oman, France, New Zealand and Brazil source genuine SKF bearings and mixed lists through Electrical Equipment.
"We had a bad experience with counterfeit SKF bearings from another supplier. The bearings from skfus.com are genuine, traceable, and the packaging matches SKF's current format. Our reliability team verified the first batch and we now use them as our primary source."
"The SKF mounted units and insert bearings we ordered for a conveyor upgrade were supplied with the correct housing and locking arrangement. Our maintenance team installed them without modification. No noise, no leaks, no call-backs."
Technical articles for this bearing type
These guides cover selection, identification and replacement points relevant to Double Row Angular Contact Ball Bearing 3309-D-Ma SKF for Gearbox High Precision.
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Read the guideQuestions about ordering this SKF bearing
Short answers on identification, mixed orders, quote terms and substitutions at Electrical Equipment.
What if my SKF designation is incomplete?
Send a clear photo of the bearing markings and note which details still need confirming. We close identification gaps, including the exact specification and complete assembly, before you accept a quote. Nothing is substituted to fill a gap.
Can I quote this bearing together with other SKF categories?
Yes. Standard, precision and mounted units can sit in one itemised inquiry, with each line keeping its own designation, quantity and specification. Housings and mounting accessories are added when they are part of your supply scope.
What does the written quote include?
Each quote lists the designation, quantity, price and currency, stock availability, estimated lead time and quote validity. Applicable freight or tax terms are stated, and the product documents available for your order are confirmed.
How are substitutions confirmed?
Only with your approval. Any alternative is marked separately on the quote, and every technical change needs sign-off from the buyer before an order is placed.
Get a written quote for Double Row Angular Contact Ball Bearing 3309-D-Ma SKF for Gearbox High Precision
Send this model alone or with your full SKF list. We verify the identification details on every line first, then issue an itemised written quote with lead time and validity.