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 |
|---|
| Heavy Construction | Excavators, Bulldozers, Loaders, Cranes |
| Industrial Machinery | Gearboxes, Presses, Rolling Mills |
| Mining | Conveyors, Crushers, Drilling Equipment |
Minimize Downtime with NNU4934 B/Sp C3 Double Row Cylindrical Roller Bearing for Heavy Machinery
Construction and industrial operators know the cost of unexpected downtime—every hour a machine sits idle eats into productivity and profits. Sourcing reliable bearings for heavy-duty equipment often means juggling multiple suppliers, facing long lead times, and worrying about inconsistent quality that can lead to premature failures. When your excavator or crane needs a replacement bearing, you need a solution that matches the original specifications and arrives fast.
Engineered for Heavy-Duty Performance When You Need It Most
Our Double Row Cylindrical Roller Bearing NNU4934 B/Sp C3 is designed to meet the rigorous demands of heavy construction machinery. As an official authorized SKF solution provider, we ensure every bearing undergoes full-process quality control compliant with global standards. Whether your equipment operates under high axial loads, continuous vibration, or varying temperatures, this non-aligning, separated roller bearing delivers consistent performance—critical for maintaining uptime in demanding worksites.
Built to Withstand the Toughest Conditions
This Heavy Construction Machinery Bearing excels in applications where reliability under heavy loads is non-negotiable. Its separated design allows for easy mounting and dismounting, simplifying maintenance and reducing repair time. The C3 clearance rating ensures optimal performance even when thermal expansion occurs during prolonged operation, making it ideal for gearboxes, main shafts, and other critical components in excavators, bulldozers, and industrial presses. With a hardness of 60-64 HRC, it resists wear and deformation under extreme stress.
Technical Precision That Drives Machine Reliability
The performance of your heavy machinery depends on critical bearing specifications. The NNU4934 B/Sp C3 features a robust bearing steel construction, providing the strength needed to handle large axial loads common in construction equipment. Its cage options—brass or steel—offer durability and stability at different operating speeds, while vibration classes Z1V1 to Z3V3 ensure smooth operation with minimal noise. The separated design allows for precise mounting, ensuring proper alignment and extending bearing life. When paired with the right lubrication system, this bearing delivers consistent performance even in dust, dirt, and high-moisture environments.
Why Cutting Corners on Bearings Costs You More
Choosing non-genuine or low-quality bearings may save money upfront, but the hidden costs add up quickly. Counterfeit bearings often fail prematurely, leading to unplanned downtime, costly repairs, and potential damage to surrounding components. A single bearing failure in a crane or excavator can halt an entire project, resulting in lost revenue and missed deadlines. Our bearings, backed by SKF's global standards, reduce these risks by ensuring reliability and longevity. With full specification coverage and professional scheme matching, we help you avoid the hidden expenses of poor-quality components.
Your Trusted Partner for Industrial Bearings
With over 900 clients across 50+ countries, we’ve built our reputation on reliability and service. As an official full-category authorized provider, we offer complete traceability for every bearing, ensuring you receive genuine products that meet SKF’s strict quality standards. Our sealing & lubrication engineering team provides expert support for选型 and application, helping you avoid costly mistakes. For emergency maintenance, we deliver fast—minimizing downtime when you need it most. Plus, our one-stop system procurement means you can source all your bearing and maintenance needs from a single, trusted supplier, reducing coordination costs and streamlining your supply chain.
Packaging & Shipping
- Secure carton pallet packaging to prevent damage during transit
- Expedited delivery options available for emergency maintenance needs
- Flexible shipping via DHL, FedEx, UPS, air, or sea freight
- Real-time logistics tracking provided for all orders
- Minimum order quantity of 1 piece, ideal for both maintenance and project requirements
Get Your Machinery Back to Work—Fast
Don’t let bearing issues slow down your operations. Whether you need a single NNU4934 B/Sp C3 for emergency repair or want to stock up for future projects, we have the inventory and expertise to support you. Send us your bearing designation, application details, and quantity, and our team will provide a quote within one working day—so you can get back to work with minimal delay.
Frequently Asked Questions
Q: Are these genuine bearings?
A: Yes, as an official authorized SKF solution provider, all our products are sourced through legitimate channels and come with complete traceability documentation to verify authenticity.
Q: How can I confirm this bearing fits my equipment?
A: Provide your equipment model, shaft diameter, or existing bearing part number, and our technical team will verify compatibility and provide expert选型 support at no additional cost.
Q: What is the warranty policy?
A: We stand behind the quality of our bearings. All products are covered by the manufacturer's warranty, with replacement or refund available for any manufacturing defects.
Q: What is the minimum order quantity?
A: We accept orders for 1 piece, making us ideal for emergency repairs, small-scale maintenance, or initial testing before larger project commitments.
Q: How long does shipping take?
A: For in-stock items, we ship within 3-7 working days. Expedited shipping options are available for urgent requirements, with delivery times varying by destination.
Q: How do I verify the bearing's authenticity upon receipt?
A: Each bearing comes with original packaging and documentation. You can cross-check serial numbers against manufacturer records, and our team can assist with verification if needed.
Ready to order or need a quote?
Send your bearing designation, application details, and quantity — we'll respond within 24 hours.
