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 |
| Industrial Manufacturing |
Machine Tools, Gearboxes, Reducers |
| Automotive |
Transmission Systems, Axles |
| Agricultural Machinery |
Tractors, Harvesters |
| Engineering |
Excavators, Heavy Duty Machinery |
Reduce Downtime with Wide Clearance Double Row Cylindrical Roller Bearing NU311 EC P/C3
Industrial machinery operators know the frustration of unexpected downtime caused by bearing failures. Misalignment, heavy loads, and temperature fluctuations often lead to premature wear, especially in standard clearance bearings. Sourcing reliable replacement parts with flexible MOQ and fast delivery can be another challenge, disrupting maintenance schedules and production timelines.
Engineered for Heavy-Duty Industrial Performance
The Wide Clearance Double Row Cylindrical Roller Bearing NU311 EC P/C3 addresses these pain points with precision design and robust construction. As a professional bearing manufacturer with decades of export experience, we ensure this bearing meets strict quality standards, supporting industrial machinery in high-load, high-temperature environments. Its separated structure allows for easy installation and maintenance, making it ideal for gearboxes, reducers, and machine tool spindles where reliability is critical.
Optimal Performance in Demanding Conditions
This Double Row Cylindrical Roller Bearing excels in applications with radial loads and moderate axial displacement. The P/C3 clearance grade provides extra space to accommodate thermal expansion and shaft misalignment, common in industrial machinery operating at variable speeds. With a hardness of 60-64 HRC, it delivers exceptional wear resistance, ensuring long service life even under continuous operation. Whether in agricultural equipment or heavy engineering machinery, this bearing maintains stable performance under heavy loads.
Key Technical Features That Matter
The NU311 EC P/C3 bearing’s technical specifications directly impact its performance in industrial settings. The double row design increases radial load capacity compared to single row bearings, making it suitable for high-torque applications. Cage options of brass or steel offer durability—brass cages excel in high-speed scenarios with better heat dissipation, while steel cages provide enhanced strength for heavy shock loads. Vibration grades Z1V1 to Z3V3 ensure smooth operation, reducing noise and extending equipment lifespan. The choice of C3 clearance is particularly beneficial for machinery with temperature variations, preventing seizure and maintaining operational efficiency.
Why Genuine Bearings Lower Total Costs
Choosing genuine Wide Clearance Cylindrical Roller Bearings over counterfeit alternatives reduces long-term costs significantly. Counterfeit bearings often fail prematurely, leading to unplanned downtime, expensive repairs, and potential damage to adjacent components. Our bearings adhere to ISO international standards, with strict incoming material inspection and full-process production supervision. Each unit undergoes dimensional detection and performance testing, ensuring consistent quality. The 12-month warranty further protects your investment, covering manufacturing defects with free replacement or refund options.
Our Commitment to Reliable Supply
With over 18 years of manufacturing experience, we serve customers across Europe, North America, Southeast Asia, and the Middle East. Our factory is equipped with advanced precision processing equipment and automated production lines, capable of producing bearings from P0 to P4 precision grades. We offer flexible order policies, including 1 piece MOQ for standard bearings and sample orders without MOQ, supporting both small-scale maintenance and large-volume production needs. Our professional technical team provides free guidance on bearing selection, installation, and maintenance, ensuring optimal performance in your specific application. Certified with ISO 9001:2015 and ISO 14001, we maintain strict quality control throughout production and delivery.
Packaging & Shipping
- Carton pallet packaging ensures safe transportation and storage
- Sample orders shipped within 3-5 working days
- Bulk orders delivered in 5-15 working days
- Multiple logistics options available to meet global delivery requirements
- 1 piece MOQ for standard bearings, ideal for emergency repairs
Secure Your Bearing Supply Today
Don’t let bearing issues disrupt your production schedule. The NU311 EC P/C3 Wide Clearance Double Row Cylindrical Roller Bearing is designed to handle the demands of industrial machinery, providing reliable performance and long service life. Contact us with your specific requirements, and our team will ensure you get the right bearing for your application, delivered on time.
Frequently Asked Questions
Q: Are these bearings genuine and traceable?
A: Yes, we maintain a strict quality control system with full-process supervision. All products meet ISO international standards, and we can provide documentation to trace the manufacturing process upon request.
Q: How do I confirm if this bearing fits my equipment?
A: Provide your equipment model, load requirements, and operating conditions. Our technical team offers free选型 guidance to ensure compatibility and optimal performance.
Q: What is the warranty policy?
A: We offer a 12-month warranty from the date of receipt. Qualified defective products are eligible for free replacement or refund.
Q: What is the minimum order quantity?
A: Standard bearings have a 1 piece MOQ, supporting emergency维修 and small-scale purchases. Customized orders have negotiable quantities.
Q: How long does shipping take?
A: Sample orders ship in 3-5 working days, bulk orders in 5-15 working days. We offer flexible logistics options to meet your delivery timeline.
Q: How can I verify the bearing’s quality upon receipt?
A: Our bearings undergo unified standard finished product inspection. You can check dimensional accuracy, hardness, and clearance using standard industrial tools, or contact our technical team for support.
Ready to order or need a quote?
Send your bearing designation, application details, and quantity — we’ll respond within 24 hours.
