Tapered Roller Bearing
Class
P4 / P2
Origin
DE / SE
Standard
DIN 620
Lead
3-7 Days
Tapered Roller Bearing
In Stock
Tapered Roller Bearing SKF 3984/3920 66.68×112.71×30.16mm for Heavy Duty Machinery with Iron/Brass Cage
ISO 9001 · DIN Certified
<p>Ensure heavy-duty machinery operates with precision and reliability using the <strong>SKF 3984/3920</strong> tapered roller bearing, engineered to handle high radial and axial loads in demanding industrial environments. This 66.68×112.71×30.16mm precision component features a separable design for easy maintenance, paired with your choice of iron or brass cage to suit temperature and load requirements—ideal for reducing downtime in critical applications like CNC machine tools or wind power equipment.</p><ul><li>Complies with ISO 9001 and DIN standards, backed by SKF's renowned quality assurance for consistent performance</li><li>Single-row structure with P0-P2 precision ratings available, ensuring smooth operation even under variable loads</li><li>Grease or oil lubrication flexibility allows adaptation to specific machinery lubrication systems</li></ul>
Technical Specifications
- Type
- Tapered Roller Bearing
- Precision Class
- P4 / P2
- Certification
- ISO 9001
- Radial Runout
- ≤ 1.5 μm
- Delivery
- 3-7 Business Days
Related Keywords
Reply within 12 hours
NDA available
Full certification docs
Precision packaging
Product Description
Technical Details & Application
Product Specifications
| Parameter | Details |
|---|---|
| Model NO. | 3984/3920 |
| Cage | Iron Cage/Brass Cage/Nylon Cage |
| Precision Rating | P0 P6 P5 P4 P2 |
| Rows Number | Single |
| Structure | Taper |
| Aligning | Non-Aligning Bearing |
| Vibration | Z1V1 Z2V2 Z3V3 |
| Lubricate | Grease or Oil |
| Seals Type | Zz 2RS Open |
| Separated | Separated |
| Rolling Body | Roller Bearings |
| Load Direction | Radial Bearing |
| Outer Dimension Range | 35mm-180mm |
| Specification | 66.68×112.71×30.16 mm |
| Trademark | SKF |
| Origin | Sweden |
| HS Code | 8482200000 |
Application Industries
| Industry | Typical Equipment |
|---|---|
| Heavy Machinery | Construction Equipment, Mining Drills, Cranes |
| Manufacturing | Gearboxes, Conveyor Systems, Press Machines |
| Energy | Wind Turbine Gearboxes, Hydraulic Pumps |
| Agriculture | Harvesters, Tractors, Heavy-Duty Tillers |
Reduce Downtime with Genuine SKF 3984/3920 Tapered Roller Bearings
Industrial operations lose thousands in revenue daily when equipment fails due to substandard bearings. Maintenance teams often struggle with long lead times for authentic parts or face compatibility issues from mismatched components. For heavy-duty machinery, using non-precision bearings leads to premature wear, increased vibration, and costly unplanned shutdowns.
Genuine SKF 3984/3920 Bearings: In Stock and Ready for Heavy-Duty Applications
As an official SKF distributor, we provide the SKF 3984/3920 tapered roller bearing with precision dimensions (66.68×112.71×30.16mm) and options for iron or brass cages—ideal for handling radial and axial loads in heavy machinery. Our ISO 9001 and DIN compliant inspection system ensures each bearing meets strict quality standards before shipment. With sufficient stock of P4/P2 grade bearings, we eliminate the delays of direct manufacturer minimum order quantities.
Engineered for High-Load, High-Stress Environments
The SKF 3984/3920 excels in applications with combined radial and thrust loads, such as gearboxes, axle systems, and industrial conveyors. Its separated design allows for easy mounting and adjustment, while precision grades up to P2 ensure minimal runout in high-speed operations. Whether operating in dusty construction sites or temperature-fluctuating manufacturing plants, this bearing maintains performance under extreme conditions.
Technical Features That Maximize Machinery Uptime
Key specifications of the SKF 3984/3920 directly impact operational reliability. The precision rating options (from P0 to P2) allow customization—P4/P2 grades reduce vibration in precision machinery, while P0 suits general industrial use. Cage materials offer distinct advantages: brass cages provide higher temperature resistance and durability for continuous operation, while iron cages optimize cost-effectiveness for standard applications. Vibration classes Z1V1 to Z3V3 ensure smooth performance, critical for reducing noise and extending equipment life.
Avoid Hidden Costs: The Value of Authentic SKF Bearings
Counterfeit tapered roller bearings often fail within months, leading to replacement costs, labor expenses, and production losses that far exceed initial savings. Genuine SKF bearings undergo rigorous testing to ensure dynamic load capacity and fatigue life meet OEM requirements. Our full certification documents—including origin verification and quality reports—protect against compliance risks in large-scale projects, while our precision testing procedures eliminate the threat of premature failure.
Why 800+ Global Clients Choose Our Bearing Solutions
Our dual authorization for European brands (FAG & SKF) ensures direct access to authentic inventory. With 45+ countries served, we’ve established premium shockproof logistics that protect bearings during transit. Senior application engineers provide free选型 support, helping clients avoid costly mismatches. Every order includes unified documentation, simplifying compliance for multi-component projects. As a one-stop distributor, we consolidate purchases across brands, reducing supplier management costs by up to 30% for our clients.
Packaging & Shipping
- Original SKF packaging with carton and pallet reinforcement
- Package Size: 12.50cm × 12.50cm × 4.00cm
- Package Gross Weight: 1.200kg
- Priority delivery available for urgent maintenance needs
- Full logistics tracking with dedicated contact for updates
- 1 piece minimum order quantity supported
Get Your SKF 3984/3920 Bearing Shipped Today
Equipment downtime doesn’t wait—and neither should you. Submit your order with the SKF 3984/3920 model, application details, and quantity, and our team will provide a unified quote within one working day. With in-stock inventory and global shipping options, we help you minimize production interruptions.
Frequently Asked Questions
Q: Are these genuine SKF bearings?
A: Yes, we are an official SKF authorized distributor. Every bearing is traceable to the original SKF supply chain and comes with complete authorization documentation.
Q: How do I confirm if the 3984/3920 fits my equipment?
A: Provide your equipment model or technical specifications (load, speed, operating conditions), and our senior application engineers will verify compatibility at no cost.
Q: What is your warranty policy?
A: We honor SKF’s original manufacturer warranty, covering manufacturing defects with unconditional replacement.
Q: What is the minimum order quantity?
A: We accept orders for 1 piece, supporting emergency maintenance and small-batch requirements.
Q: How long does shipping take?
A: In-stock bearings ship within 3-7 working days via DHL, FedEx, UPS, air, or sea freight—your choice based on urgency.
Q: How can I verify the bearing’s authenticity?
A: Each bearing includes SKF’s original packaging with防伪 labels and laser markings. We also provide traceability documents and certification reports upon request.
Ready to order or need a quote?
Send your bearing designation, application details, and quantity — we’ll respond within 24 hours.
Related Products
More Tapered Roller Bearing
Tapered Roller Bearing
Low Vibration SKF 32206 Tapered Roller Bearing 30x62x20mm for Gearbox & Car Hubs
View Details
Inquiry
Get Pricing &
Technical Support
Submit your inquiry for Tapered Roller Bearing SKF 3984/3920 66.68×112.71×30.16mm for Heavy Duty Machinery with Iron/Brass Cage and our senior application engineers will respond within 12 hours with pricing, availability, and technical documentation.
Authorized European Stock
Genuine FAG & SKF, traceable certificates
Reply Within 12 Hours
Senior engineers, multi-language support
Full Certification Docs
ISO 9001, DIN 620, material certs available