SKF 3984/3920 Tapered Roller Bearing 66.68×112.71×30.16mm for Heavy Duty Machinery
<p>Ensure peak performance in your heavy duty machinery with the <strong>SKF 3984/3920 tapered roller bearing</strong>, engineered to deliver reliable load handling and extended service life. This precision-crafted bearing (66.68×112.71×30.16mm) features a separable design for easy installation and maintenance, paired with a choice of iron, brass, or nylon cages to suit your specific operating conditions.</p><ul><li>Single-row tapered structure optimizes radial and axial load distribution, reducing downtime in critical applications like mining and construction equipment</li><li>Precision ratings from P0 to P2 ensure consistent performance, backed by SKF’s global quality assurance and full traceability documentation</li><li>Grease or oil lubrication flexibility allows adaptation to diverse operating environments, supported by our same-day shipping and expert technical guidance</li></ul>
- 100% genuine -- COC & factory certificates available
- In-stock · bulk & small-batch orders accepted
- ISO · DIN · ABMA · JIS compliant
- Full customs clearance documentation provided
Product Details
Full Specifications & Description
Product Specifications
| Parameter | Details |
|---|---|
| Model Number | 3984/3920 |
| Bearing Type | Tapered Roller Bearing |
| Dimensions | 66.68×112.71×30.16 mm |
| Cage Material | Iron Cage/Brass Cage/Nylon Cage |
| Precision Rating | P0, P6, P5, P4, P2 |
| Seals Type | Zz, 2RS, Open |
| Structure | Single Row |
| Separated | Separated |
| Rolling Body | Roller |
| Load Direction | Radial |
| Alignment | Non-Aligning |
| Vibration Level | Z1V1, Z2V2, Z3V3 |
| Lubrication | Grease or Oil |
| Origin | Sweden |
| HS Code | 8482200000 |
Application Suitability
| Industry | Typical Applications |
|---|---|
| Heavy Machinery | Transmission systems, gearboxes, axle assemblies |
| Industrial Equipment | Conveyors, presses, material handling machinery |
Need a Dependable SKF 3984/3920 Tapered Roller Bearing for Heavy Machinery?
Finding the right tapered roller bearing for heavy-duty applications often means sifting through inconsistent quality and unclear specifications. Misalignment issues, premature wear from substandard materials, and long lead times can disrupt operations and increase maintenance costs. When your machinery relies on precise load distribution and durability, settling for anything less than the correct bearing isn't an option.
Engineered for Reliable Performance in Heavy-Duty Environments
The SKF 3984/3920 tapered roller bearing addresses these challenges with dimensions of 66.68×112.71×30.16 mm, designed to handle radial and axial loads in demanding industrial settings. As a specialized supplier with access to a wide range of SKF bearings, we ensure you get the exact specifications needed—whether for wind power gearboxes, mining equipment, or steel mill machinery. Our direct supply chain means you avoid middlemen, receiving genuine products with consistent quality.
Ideal for High-Load, Precision-Required Applications
This bearing excels in heavy-duty machinery where reliable performance under stress is critical. Its single-row tapered design ensures efficient load distribution, making it suitable for applications with combined radial and axial loads. The separated structure allows for easy mounting and adjustment, while options for iron, brass, or nylon cages accommodate different operating temperatures and load conditions. Whether in continuous operation or intermittent heavy loads, this bearing maintains dimensional stability and reduces vibration across Z1V1 to Z3V3 levels.
Key Engineering Features That Enhance Performance
The precision rating options (from P0 to P2) allow selection based on application requirements—higher precision grades like P5 or P4 minimize runout in high-speed equipment, while P0 suits general industrial use. The choice of seal types (Zz, 2RS, Open) provides flexibility: 2RS seals offer enhanced contamination protection for dusty environments, while open designs facilitate lubrication in high-temperature settings. The radial load direction capability ensures compatibility with machinery components like axles and gear shafts, where consistent force transmission is essential. Surface hardness and heat treatment, compliant with SKF's quality standards, contribute to resistance against wear and fatigue, extending service life.
Why Proper Bearing Selection Lowers Total Cost
Choosing the correct SKF 3984/3920 bearing reduces the risk of unplanned downtime—a critical factor in heavy machinery operations. Inferior bearings often fail prematurely due to material inconsistencies or imprecise manufacturing, leading to costly repairs and production losses. This bearing's adherence to international standards ensures interchangeability with existing components, simplifying replacement and reducing inventory complexity. By investing in a genuine tapered roller bearing that matches your application's load, speed, and environmental conditions, you lower long-term costs associated with maintenance, parts replacement, and operational disruptions.
Quality You Can Trust in Every Component
Our commitment to quality starts with direct sourcing from established channels, ensuring each SKF 3984/3920 bearing meets original specifications. We implement rigorous inspection processes, verifying dimensions, precision, and material quality before shipment. Comprehensive documentation, including batch traceability and compliance certificates, provides transparency and peace of mind. With a large inventory covering over 95% of conventional SKF models, we support same-day shipping for in-stock items, ensuring you receive your order when needed. Our ISO 9001-certified procedures guarantee consistent quality across procurement, storage, and delivery.
Packaging & Shipping
- Standard packaging: Carton with pallet for bulk orders
- Individual package dimensions: 12.50cm × 12.50cm × 4.00cm (gross weight: 1.200kg)
- Fast global delivery: 7-15 days door-to-door to most countries and regions
- Flexible logistics: Supports express, air, and sea freight based on order size and urgency
- Low minimum order quantity: Accommodates both small-scale replacements and large-volume procurement
Get Your SKF 3984/3920 Bearing Quote Today
Whether you need a single unit for maintenance or bulk quantities for production, we provide competitive pricing and reliable supply. To ensure compatibility with your equipment, share your machinery model, required quantity, and delivery location—our technical team can assist with verification if needed. Contact us now to confirm stock availability and receive a tailored quote.
Frequently Asked Questions
Q: Do you supply bearings from other brands besides SKF?
A: Yes, we offer a full range of international brands including NSK, NTN, Koyo, NACHI, IKO, FAG, Timken, and domestic quality brands, supporting procurement by specific model or specification.
Q: How can I confirm if the SKF 3984/3920 fits my equipment?
A: Provide your machinery's make, model, or existing bearing dimensions (bore diameter, outer diameter, width), and our technical team will cross-verify compatibility with the 66.68×112.71×30.16 mm specification.
Q: What is your warranty policy for SKF bearings?
A: All SKF products come with the original factory warranty covering manufacturing defects. Specific terms are detailed in the product documentation, and we handle returns or replacements in accordance with SKF's global warranty standards.
Q: What is the minimum order quantity for the SKF 3984/3920?
A: We accept small orders, including single units for maintenance needs. Larger quantities may qualify for volume pricing—contact us with your requirements for details.
Q: How quickly can you ship the SKF 3984/3920 bearing?
A: If in stock, we ship same-day for orders confirmed before 12:00 GMT+8. International delivery typically takes 7-15 days via our global logistics network, with express options available for urgent needs.
Q: Do you offer custom packaging or labeling for bulk orders?
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SKF 3984/3920 Tapered Roller Bearing 66.68×112.71×30.16mm for Heavy Duty Machinery
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