Wide Clearance Double Row Cylindrical Roller Bearing Nu311 Ec P/C3 for Industrial Machinery

Product Specifications

Application Industries

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

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