SKF 3984/3920 Tapered Roller Bearing 66.68×112.71×30.16mm for Heavy Machinery OEM Use

Product Specifications

Application Industries

Stop Equipment Downtime with Genuine SKF 3984/3920 Tapered Roller Bearings

When heavy machinery grinds to a halt due to bearing failure, every hour of downtime eats into production targets and profits. Many operators face the double challenge of finding authentic replacement parts quickly and ensuring they meet the exact specifications of their equipment. Sourcing from unreliable suppliers often leads to mismatched bearings that fail prematurely, while coordinating with multiple vendors wastes valuable time better spent on maintenance.

Genuine SKF 3984/3920 Bearings, In Stock and Ready to Ship

As an official SKF distributor with over 10 years of technical expertise, we solve these challenges by providing authentic SKF 3984/3920 Tapered Roller Bearings directly from authorized supply chains. Our WMS real-time inventory system ensures this bearing—with dimensions 66.68×112.71×30.16mm—is available for immediate dispatch, eliminating long lead times. Whether your application involves heavy-duty conveyors, construction machinery gearboxes, or industrial press systems, our ISO 9001 three-level quality inspection guarantees each unit meets SKF’s strict performance standards before shipment.

Engineered for Heavy-Duty Performance

The SKF 3984/3920 Tapered Roller Bearing is designed to excel in high-load, radial applications common in heavy machinery. Its single-row tapered structure distributes weight evenly across rolling elements, making it ideal for equipment subject to continuous stress such as mining crushers, loader axles, and industrial gearboxes. The separated design allows for easy mounting and dismounting during maintenance, reducing downtime during repairs. With precision ratings from P0 to P2, this bearing maintains stability even under varying speeds and operating conditions, ensuring consistent performance in critical applications.

Technical Features That Maximize Reliability

Key technical attributes of the SKF 3984/3920 directly contribute to its durability and efficiency. The choice of cage material—iron, brass, or nylon—allows customization for specific operating environments: iron cages suit high-temperature settings, brass offers enhanced strength for heavy loads, and nylon reduces friction in high-speed applications. Vibration classes Z1V1 to Z3V3 ensure smooth operation, minimizing noise and wear on connected components. Available seal types (Zz, 2RS, Open) provide flexibility in contamination protection: 2RS seals are ideal for dusty construction sites, while Open designs suit applications requiring frequent lubrication checks. These features combine to extend bearing life and reduce maintenance intervals.

Avoid Hidden Costs: The Value of Authentic SKF Bearings

Choosing counterfeit tapered roller bearings may seem cost-effective initially, but the long-term consequences are severe. Substandard materials and imprecise manufacturing lead to early failure, often within months of installation. This results in repeated downtime, increased labor costs for replacements, and potential damage to expensive machinery components like gears and shafts. In contrast, genuine SKF 3984/3920 bearings are engineered to meet ISO standards, with rigorous testing ensuring they withstand the demands of heavy machinery. By investing in authentic parts, you reduce total cost of ownership through longer service life, fewer repairs, and uninterrupted production.

Why Global Buyers Choose Our SKF Bearings

Packaging & Shipping

• Original SKF packaging with product certification and batch traceability documentation
• Carton and pallet packaging for secure transportation, with gross weight per unit 1.200kg
• Global door-to-door logistics via DHL, FedEx, UPS, air, or sea freight
• Real-time shipment tracking provided upon dispatch
• 1-unit minimum order quantity, supporting emergency maintenance and small-batch requirements

Get Your SKF 3984/3920 Bearing Today

Don’t let equipment downtime impact your bottom line. Whether you need a single replacement bearing for emergency repair or bulk orders for planned maintenance, we ensure fast delivery and reliable performance. Send us your bearing designation, application details, and quantity, and our team will provide a detailed quote within one working day—keeping your operations running smoothly.

Frequently Asked Questions