Product Specifications
| Parameter |
Details |
| Model NO. |
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 Industries
| Industry |
Typical Equipment |
| Construction Machinery |
Excavators, Loaders, Bulldozers, Concrete Mixers |
Reduce Downtime with Low Noise Double Row Cylindrical Roller Bearing NNU4934 B/Sp C3 W33 for Construction Machinery
Construction machinery operators know the frustration of unexpected downtime—especially when it’s caused by bearing failure. Noisy operation, premature wear, and misalignment issues not only disrupt project timelines but also increase maintenance costs. Sourcing reliable bearings that meet heavy-duty requirements while keeping noise levels low can feel like searching for a needle in a haystack, especially when dealing with multiple suppliers.
Engineered for Construction Machinery’s Toughest Conditions
The Low Noise Double Row Cylindrical Roller Bearing NNU4934 B/Sp C3 W33 is designed to address these challenges head-on. As an official authorized distributor of SKF & Timken, we ensure every bearing meets strict quality standards through our unified ISO 9001 inspection system. With a large centralized inventory, we can fulfill orders quickly, even for urgent maintenance needs, so your construction equipment gets back to work without unnecessary delays.
Optimized Performance in High-Demand Applications
This double row cylindrical roller bearing excels in heavy-load, high-torque environments typical of construction machinery. Its separated design allows for easy mounting and dismounting, simplifying maintenance in the field. The W33 lubrication groove and C3 clearance provide enhanced thermal stability and accommodate shaft expansion, critical for equipment operating under varying temperatures and heavy loads. Whether used in excavator swing mechanisms or loader drive axles, this bearing delivers consistent performance where reliability matters most.
Key Technical Features That Make a Difference
The NNU4934 B/Sp C3 W33’s performance is defined by precision engineering. Its brass or steel cage ensures stable roller guidance, even at high speeds, reducing vibration and extending service life. The 60-64 HRC hardness rating guarantees resistance to wear and deformation under heavy loads, while Z1V1, Z2V2, or Z3V3 vibration classes minimize operational noise—a crucial factor for operator comfort and compliance with worksite regulations. The C3 clearance grade balances radial play and load distribution, preventing overheating and ensuring optimal contact between rollers and raceways.
Why Genuine Bearings Matter for Your Bottom Line
Choosing non-genuine bearings may seem like a cost-saving measure, but the hidden expenses add up quickly. Counterfeit bearings often fail prematurely, leading to unplanned downtime, expensive repairs, and potential damage to other machine components. Our Low Noise Double Row Cylindrical Roller Bearing for Construction Machinery, backed by official brand authorization, eliminates these risks. With full traceability and compliance with international standards, you’re not just buying a bearing—you’re investing in long-term reliability and reduced total cost of ownership.
Your Trusted Partner for Construction Machinery Bearings
With over 1,200 clients across 55+ countries, we’ve built our reputation on delivering dual-brand bearing solutions that integrate European precision and American heavy-duty advantages. Our cross-brand technical team provides expert support, from选型 to after-sales service, ensuring you get the right bearing for your specific application. We offer one-stop mixed procurement, so you can source all your bearing needs from a single, reliable supplier, reducing administrative hassle and supplier management costs. Every bearing undergoes rigorous quality checks before shipment, giving you confidence in every order.
Packaging & Shipping
- Secure carton pallet packaging to protect against damage during transit
- Expedited shipping options available for urgent maintenance requirements
- Global logistics partners including DHL, FedEx, and UPS for reliable delivery
- Real-time tracking provided for all shipments
- Flexible order quantities, with no minimum order requirement for emergency needs
Get Your Construction Machinery Back on Track
Don’t let bearing issues slow down your projects. The NNU4934 B/Sp C3 W33 Low Noise Double Row Cylindrical Roller Bearing is in stock and ready to ship. Send us your requirements today, and our team will provide a detailed quote within 24 hours. The sooner you order, the sooner your equipment can return to full operation—minimizing downtime and maximizing productivity.
Frequently Asked Questions
Q: Are these genuine bearings?
A: Yes, we are official authorized distributors of SKF & Timken, ensuring all products are traceable to the original manufacturer with complete authorization documentation.
Q: How do I confirm if this bearing fits my equipment?
A: Provide your equipment model or specific application parameters, and our technical team will verify compatibility and offer选型 support at no extra cost.
Q: What is your warranty policy?
A: All bearings come with the manufacturer’s standard warranty, covering manufacturing defects with unconditional replacement or refund.
Q: What is the minimum order quantity?
A: We accept orders for 1 unit, making us ideal for emergency repairs and small-batch procurement.
Q: How long does shipping take?
A: In-stock items ship within 3-7 business days, with multiple logistics options including express, air, and sea freight to meet your timeline.
Q: How can I verify the authenticity of the bearing?
A: Each bearing includes原厂 packaging with防伪 labels and laser markings. We also provide full traceability documents for cross-verification through manufacturer channels.
Ready to order or need a quote?
Send your bearing designation, application details, and quantity — we’ll respond within 24 hours.
