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 |
| Seal Type | ZZ, 2RS, Open |
| Lubrication | Grease or Oil |
| Load Direction | Radial Bearing |
| Structure | Single Row, Taper |
| Separated | Separated |
| Rolling Body | Roller Bearings |
| Aligning | Non-Aligning Bearing |
| Vibration Level | Z1V1, Z2V2, Z3V3 |
| Origin | Sweden |
| HS Code | 8482200000 |
Application Suitability
| Industry | Typical Applications |
|---|---|
| Heavy Machinery | Construction equipment, mining machinery, steel mill processing lines |
| Industrial Manufacturing | Conveyor systems, heavy-duty gearboxes, press machinery |
Why the SKF 3984/3920 Tapered Roller Bearing Stands Out for Heavy-Duty Applications
When heavy machinery operates under extreme loads, the wrong bearing choice leads to frequent downtime and increased maintenance costs. Many buyers struggle with mismatched dimensions causing installation failures or premature wear from substandard materials. Finding a reliable source for specific tapered roller bearings like the SKF 3984/3920 often means navigating multiple suppliers with inconsistent lead times.
Engineered for Heavy-Duty Performance
The SKF 3984/3920 tapered roller bearing addresses these challenges with its robust design and precise specifications. As a specialized supplier with access to a comprehensive range of bearing brands, we ensure this 66.68×112.71×30.16mm bearing meets original equipment standards for heavy machinery. Its separated structure allows for easy mounting and dismounting, a critical feature in maintenance-intensive environments like mining and construction sites.
Optimal Performance in Demanding Conditions
This bearing excels in applications with combined radial and axial loads, typical in heavy-duty gearboxes and conveyor systems. Operating temperatures compatible with both grease and oil lubrication make it versatile for varying industrial environments. The non-aligning design ensures stability under high torque, while precision ratings from P0 to P2 accommodate applications requiring tight dimensional tolerances, such as steel mill rolling equipment.
Key Engineering Features Explained
The cage material options—iron, brass, or nylon—provide flexibility for different operating conditions: iron cages offer high strength for shock-loaded applications, brass enhances heat dissipation in high-temperature environments, and nylon reduces noise in precision machinery. The Z1V1 to Z3V3 vibration levels allow selection based on equipment sensitivity, with higher grades minimizing operational noise in precision manufacturing. The bearing’s 30.16mm width balances load capacity and space constraints, making it suitable for compact heavy-duty assemblies where installation space is limited.
Total Cost of Ownership Benefits
Choosing the correct tapered roller bearing directly impacts long-term operational costs. A bearing with improper precision class or material can fail prematurely, leading to unplanned downtime and potential damage to adjacent components. The SKF 3984/3920’s adherence to international dimensional standards ensures interchangeability with existing setups, reducing inventory costs. By selecting the appropriate cage material and lubrication type upfront, maintenance teams can extend service intervals, lowering overall maintenance expenses for heavy machinery fleets.
Quality You Can Verify
Our procurement process follows ISO 9001 standards, with each bearing undergoing dimensional and hardness testing before shipment. We provide complete traceability documentation, including batch inspection reports, to confirm compliance with original specifications. All products are sourced through established channels, ensuring authenticity and consistent performance. With a large dedicated inventory, we support same-day shipping for in-stock items, minimizing equipment downtime during replacement.
Packaging & Shipping
- Standard packaging: Carton with pallet for bulk orders, individual box for small quantities
- Package dimensions: 12.50cm × 12.50cm × 4.00cm per unit
- Gross weight: 1.200kg per unit
- Shipping options: Express courier, air freight, or sea freight based on urgency and destination
- Minimum order quantity: Flexible, supporting both small batches and large-scale procurement
Get Your SKF 3984/3920 Bearing Quote Today
Whether you need a single replacement or bulk order for heavy machinery, we provide competitive pricing and reliable delivery. Simply share your required quantity and destination, and our team will confirm stock availability and shipping timelines. For technical assistance in verifying compatibility with your equipment, include your application details—our engineers can help ensure the SKF 3984/3920 meets your operational requirements.
Frequently Asked Questions
Q: Do you supply other bearing brands or models besides SKF?
A: Yes, we offer a full range of international brands including NSK, NTN, Koyo, NACHI, IKO, FAG, and Timken, as well as domestic quality brands. We can source specific models based on your requirements.
Q: How can I confirm if the SKF 3984/3920 fits my equipment?
A: Provide your equipment model or existing bearing dimensions (bore, outer diameter, width), and our technical team will cross-verify compatibility with the SKF 3984/3920 specifications.
Q: What is your warranty policy for this bearing?
A: We offer a warranty against manufacturing defects. Specific terms are detailed in the sales contract, with coverage typically ranging from 6 to 12 months depending on application.
Q: What is the minimum order quantity for the SKF 3984/3920?
A: We accept small orders starting from one unit, making it easy to source replacement parts without excess inventory.
Q: How long does shipping take to [my country]?
A: In-stock items ship within 24 hours. Delivery times vary by destination: 3-5 days for express courier, 7-10 days for air freight, and 30-45 days for sea freight.
Q: Can you provide custom packaging or labeling for this bearing?
A: Yes, we offer customized packaging and label printing services to meet specific customer or regulatory requirements.
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.
