Description
Product Specifications
| Parameter | Details |
|---|---|
| Bearing Type | Double Row Cylindrical Roller Bearing |
| Outer Dimension | Medium and Large(120-190mm) |
| Material | Bearing Steel |
| Spherical | Non-Aligning Bearings |
| Load Direction | Axial Bearing |
| Separated | Separated |
| Clearance | C0 C2 C3 C4 C5 |
| Cage | Brass, Steel |
| Vibration | Z1V1 Z2V2 Z3V3 |
| Hardness | 60-64 HRC |
| Transport Package | Carton Pallet |
| HS Code | 8482800000 |
Application Suitability
| Industry | Typical Applications |
|---|---|
| Construction Machinery | Heavy equipment drive systems, hydraulic machinery components, transmission assemblies |
Struggling with Bearing Failures in Construction Machinery? The SKF NNU4934 B/Sp C3 Makes a Difference
Construction machinery operators know the cost of unexpected downtime—especially when caused by bearing failures. Misaligned components, excessive noise, and premature wear often stem from using incorrect bearing specifications. Sourcing reliable double row cylindrical roller bearings with precise clearance and durable cages can be a challenge, particularly when dealing with multiple suppliers for different brands.
Engineered for the Demands of Construction Environments
The SKF NNU4934 B/Sp C3 double row cylindrical roller bearing addresses these challenges with features designed for heavy-duty applications. As a professional bearing supplier with access to a comprehensive range of international brands, we ensure this bearing meets the exacting standards required for construction machinery. Its separated design allows for easy installation and maintenance, while the C3 clearance provides optimal performance under thermal expansion conditions common in high-load operations.
Optimal Performance in Heavy-Duty Conditions
This cylindrical roller bearing excels in applications where high radial loads and moderate axial loads are present—typical in construction equipment like excavator swing mechanisms and bulldozer final drives. Operating within temperature ranges suitable for outdoor construction sites, its robust construction handles the vibration and shock loads inherent to these environments. The brass cage option enhances durability, making it ideal for continuous operation where reliability is non-negotiable.
Key Engineering Features Explained
The 60-64 HRC hardness of the bearing steel ensures excellent wear resistance, critical for extending service life in abrasive construction environments. The Z1V1 to Z3V3 vibration classes allow selection based on noise sensitivity—important for operator comfort and compliance with worksite regulations. The double row design provides higher load capacity compared to single row alternatives, while the separated inner and outer rings simplify mounting and dismounting during maintenance. C3 clearance is specifically chosen to accommodate thermal expansion, preventing premature failure in high-temperature operations.
Why Choosing the Right Bearing Reduces Total Costs
Investing in a quality double row cylindrical roller bearing like the SKF NNU4934 B/Sp C3 minimizes long-term costs. Inferior bearings often fail prematurely due to inadequate material hardness or imprecise clearance, leading to expensive equipment downtime and replacement parts. Properly specified bearings reduce maintenance frequency, lower labor costs, and prevent secondary damage to adjacent components. By following industry standards for load ratings and fatigue life, this bearing delivers consistent performance that contributes to overall equipment efficiency.
Quality You Can Rely On
Our bearing procurement process adheres to strict quality control measures, ensuring each product meets dimensional and performance specifications. We source from established manufacturers with ISO 9001 certified production processes, covering raw material inspection through final product testing. All bearings come with complete traceability documentation, and we offer warranty coverage for manufacturing defects. With access to a wide range of brands and models, we can fulfill both standard and hard-to-find bearing requirements, supporting your operation with reliable supply.
Packaging & Shipping
- Standard packaging: Carton with pallet for secure transportation
- Available from stock for prompt dispatch
- Flexible shipping options: Express courier, air freight, or sea freight based on urgency and destination
- Low minimum order quantity supported, accommodating both small maintenance needs and large production runs
Get a Quote for Your SKF NNU4934 Bearing Requirement
Whether you need a single replacement bearing or bulk quantities for your construction machinery fleet, we can provide competitive pricing and reliable delivery. Share your exact requirements—including quantity, delivery location, and any special packaging needs—and our team will prepare a tailored quote to support your operation.
Frequently Asked Questions
Q: Do you supply bearings from other brands besides SKF?
A: Yes, we offer a comprehensive range of bearings from international brands including NSK, NTN, Koyo, NACHI, IKO, FAG, Timken, and domestic Chinese manufacturers, along with custom specifications.
Q: How can I confirm if this bearing fits my equipment?
A: Provide your equipment model or the existing bearing’s dimensions (bore diameter, outer diameter, width), and our technical team will verify compatibility with the SKF NNU4934 B/Sp C3 specifications.
Q: What warranty coverage do you offer?
A: We provide warranty coverage against manufacturing defects. The specific warranty period and terms are detailed in each sales contract, ensuring protection for your investment.
Q: What is the minimum order quantity for this bearing?
A: We support low minimum order quantities, allowing you to purchase single units for maintenance or larger quantities for production, with volume-based pricing available.
Q: How quickly can you ship the SKF NNU4934 bearing?
A: Stock items are shipped within 1-2 business days. For non-stock or custom orders, lead times vary by manufacturer and will be confirmed in your quote.
Q: Do you offer OEM or custom bearing solutions?
A: Yes, we can source or manufacture custom bearings according to your technical drawings, specifications, or sample requirements, including specialized materials and cage designs.
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.
