Description
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 |
|---|---|
| Construction Machinery | Heavy-duty equipment components requiring radial load support |
Looking for a Reliable Heavy Duty Double Row Angular Contact Ball Bearing 3218-a? Here’s What Matters
Construction machinery operators know the frustration of bearing failures—downtime from early wear, misalignment issues, or incompatible replacements costs time and money. With countless brands and specifications on the market, finding the right bearing that balances performance and availability can feel like searching for a needle in a haystack.
Built for Reliable, Long-Term Performance in Construction Machinery
The Heavy Duty Double Row Angular Contact Ball Bearing 3218-a addresses these challenges with robust design tailored for construction environments. Our ISO 9001 certified processes ensure each bearing meets strict quality standards, while our extensive network covers both international brands like SKF and domestic options, allowing one-stop sourcing for all your bearing needs. Whether your equipment demands precise radial load handling or requires quick replacement to minimize downtime, this double row angular contact ball bearing delivers consistent performance where it matters most.
Where This Bearing Performs Best
Designed for heavy-duty applications, this 3218-a bearing excels in construction machinery operating under high radial loads and moderate axial forces. Its double row structure provides enhanced rigidity, making it suitable for equipment subject to vibration and variable stress conditions. The steel cage option further reinforces durability, ensuring reliable operation even in dusty or debris-prone job sites where standard bearings might fail prematurely.
Engineering Details That Matter
The bearing’s construction from high-grade bearing steel ensures optimal hardness and wear resistance, critical for withstanding the harsh conditions of construction sites. Available precision ratings from P0 to P6 allow customization based on application requirements—higher precision grades (P2/P4) suit equipment where minimal runout is essential, while standard grades (P0/P6) offer cost-effective solutions for general use. The separated design facilitates easier installation and maintenance, a key advantage during field repairs. Lubrication with oil or grease can be selected based on operating speed and temperature, ensuring proper friction management for extended service life.
Why Bearing Selection Affects Total Cost
Choosing the right bearing directly impacts your bottom line. A mismatched or low-quality 3218-a bearing may save upfront costs but often leads to frequent replacements, unplanned downtime, and potential damage to adjacent components. This bearing’s adherence to international standards ensures dimensional consistency, reducing the risk of installation errors that cause premature failure. By investing in a precision-engineered steel cage bearing designed for construction machinery, you minimize maintenance costs and maximize equipment uptime—ultimately lowering the total cost of ownership over the long term.
Quality You Can Rely On
Our commitment to quality starts with rigorous incoming material inspections and continues through finished product testing, including dimensional verification and hardness checks. Each bearing is covered by a warranty against manufacturing defects, providing peace of mind for your critical applications. With access to a wide range of brands and models, we can source or supply bearings according to your exact specifications, whether you need SKF-branded products or compatible alternatives. Our substantial inventory ensures quick response to urgent orders, so you can keep your machinery operational without unnecessary delays.
Packaging & Shipping
- Standard packaging includes carton boxes with palletization for bulk orders, ensuring secure transport
- Expedited shipping available for urgent requirements, with stock items typically dispatched within 24-48 hours
- Flexible logistics options including express courier, air freight, and sea freight to meet your delivery timeline
- Low minimum order quantities supported, accommodating both small-scale repairs and large-volume procurement
Request a Quote for Your 3218-a Bearing Needs
Whether you need a single Heavy Duty Double Row Angular Contact Ball Bearing 3218-a or a bulk order for your construction fleet, we’re ready to assist. Provide your exact model requirements, quantity, and delivery location, and our team will promptly provide a competitive quote. With our comprehensive product range and technical expertise, we simplify the procurement process—so you can focus on keeping your machinery running.
Frequently Asked Questions
Q: Do you support procurement of other bearing brands or models?
A: Yes, we offer comprehensive sourcing services for all major international and domestic brands, including SKF, NSK, NTN, Koyo, and more. We can supply bearings according to your specific model or dimensional requirements.
Q: How can I confirm if this 3218-a bearing fits my equipment?
A: Provide your equipment model, existing bearing part number, or critical dimensions (bore diameter, outer diameter, width), and our technical team will verify compatibility and suggest the most suitable options.
Q: What is your warranty policy for bearings?
A: We provide a warranty against manufacturing defects for all bearings. The specific warranty period and terms are detailed in each order confirmation, with replacement or refund available for verified quality issues.
Q: What is the minimum order quantity for this bearing?
A: We support low minimum order quantities, including single-unit purchases for emergency repairs, as well as large-volume orders for ongoing production or fleet maintenance.
Q: How long does shipping take, and what logistics options are available?
A: In-stock items ship within 48 hours. Shipping time depends on the destination and chosen method—express courier (3-5 days), air freight (5-7 days), or sea freight (20-30 days for standard service).
Q: Can you provide OEM or ODM customization for bearings?
A: Yes, we offer customized bearing solutions including special materials, cage types, lubrication, and packaging. Contact us with your specific requirements or technical drawings for a tailored quote.
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.







