Product Specifications
| Parameter |
Details |
| Model NO. |
3984/3920 |
| Cage |
Iron Cage/Brass Cage/Nylon Cage |
| Precision Rating |
P0 P6 P5 P4 P2 |
| Service |
OEM ODM |
| 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 |
35mm-180mm |
| Specification |
66.68*112.71*30.16 mm |
| Trademark |
SKF |
| Origin |
Sweden |
| HS Code |
8482200000 |
Application Industries
| Industry |
Typical Equipment |
| Construction Machinery |
Excavators, Loaders, Bulldozers |
| Mining |
Crushers, Conveyors, Drilling Rigs |
| Steel |
Rolling Mills, Continuous Casters |
| Heavy Duty Machinery |
Gearboxes, Axles, Hydraulic Pumps |
Stop Equipment Downtime with Genuine SKF 3984/3920 Tapered Roller Bearings
Industrial operations lose thousands of dollars daily when heavy machinery grinds to a halt due to bearing failure. Many buyers face the frustration of long lead times from direct suppliers or the risk of counterfeit parts that fail prematurely. Sourcing multiple bearing brands for a single project only adds to the complexity, with mismatched quality standards and delivery schedules delaying critical repairs.
Genuine SKF 3984/3920 Bearings: In Stock and Ready for Heavy Duty Applications
As an official SKF distributor, we eliminate these pain points by offering authentic SKF 3984/3920 tapered roller bearings with immediate access to large centralized inventory. This 66.68×112.71×30.16mm bearing is engineered to handle the radial and axial loads common in construction machinery, mining equipment, and steel plant operations. Our one-stop procurement process means you can order this SKF bearing alongside other brands, with unified quality checks and consolidated delivery to streamline your supply chain.
Engineered for High-Load, High-Stress Environments
The SKF 3984/3920 tapered roller bearing excels in heavy duty machinery where durability under extreme loads is non-negotiable. Its separated design allows for easy mounting and dismounting, a critical feature during maintenance in the field. Whether used in excavator gearboxes, conveyor systems, or mining crushers, this bearing delivers consistent performance under conditions of high vibration and varying temperatures, reducing the need for frequent replacements and unplanned downtime.
Technical Features That Maximize Machinery Uptime
The precision rating options (P0 to P2) ensure compatibility with applications requiring tight tolerances, from general industrial use to high-precision machine tools. The choice of iron, brass, or nylon cages allows customization based on operating speed and load requirements—brass cages, for example, offer superior strength in high-temperature environments. Vibration classes Z1V1 to Z3V3 minimize noise and energy loss, while seal types (Zz, 2RS, Open) provide flexibility for different lubrication and contamination control needs. These technical details translate directly to longer bearing life and lower total operating costs for your equipment.
Why Authenticity Matters: The Cost of Counterfeit Bearings
Counterfeit tapered roller bearings often cut corners on material quality and manufacturing precision, leading to premature failure. A single bearing failure in a critical piece of equipment can cause secondary damage to gears, shafts, and housings, resulting in repair costs that far exceed the price of a genuine part. Our SKF 3984/3920 bearings come with full traceability, ensuring they meet ISO 9001 quality standards and SKF’s rigorous performance specifications. Investing in genuine bearings reduces the risk of unplanned downtime and protects your machinery investment over the long term.
Why Buyers in 55+ Countries Choose Us
Our position as an official SKF distributor means every bearing is sourced directly from the manufacturer, with complete authorization documentation. We serve over 1,200 clients worldwide, including large equipment manufacturers and mining EPC teams, by offering: one-stop mixed procurement of SKF and Timken bearings, a cross-brand technical team for选型 support, and unified quality inspection before shipment. Our global logistics network ensures timely delivery, whether you need a single bearing for emergency maintenance or bulk orders for project installations. With 10+ years in the industry, we’ve built a reputation for reliability in markets like Australia, Russia, and Saudi Arabia.
Packaging & Shipping
- Original SKF packaging with anti-counterfeit labels and product certification
- Consolidated packaging available for mixed orders to reduce handling
- Express delivery options (3-7 business days) for urgent maintenance needs
- Full logistics tracking provided from warehouse to delivery
- Minimum order quantity: 1 piece, supporting both small repairs and large projects
Get Your SKF 3984/3920 Bearing Shipped Today
Don’t let equipment downtime impact your production schedule. Send us your order details—including quantity and application requirements—and our team will provide a quote within 24 hours. With stock on hand, we can ship your SKF 3984/3920 bearing immediately, helping you get back to full operation as quickly as possible.
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 can be verified through SKF’s official channels.
Q: How do I confirm if the SKF 3984/3920 is suitable for my equipment?
A: Provide your equipment model or operating parameters (load, speed, temperature), and our technical team will verify compatibility at no cost.
Q: What is the warranty policy?
A: All SKF bearings come with the manufacturer’s warranty, covering manufacturing defects. We handle warranty claims directly with SKF for quick resolution.
Q: What is the minimum order quantity?
A: We accept orders for 1 piece, ideal for emergency maintenance or small-scale projects.
Q: How long does shipping take?
A: In-stock bearings ship within 1 business day. Delivery times range from 3-7 days via DHL, FedEx, or UPS, depending on your location.
Q: How can I verify the authenticity of the bearing?
A: Each bearing includes SKF’s holographic label and
