Double Row Full Complement Cylindrical Roller Bearings

Technical Parameters

Key Advantages

Ultra-High Load Capacity

Engineered for extreme working conditions, our bearings provide:

· Radial load capacity up to 800 kN 

· 3× higher performance than standard bearing designs

· Excellent shock resistance under heavy impact loads

Long Service Life

In steel mill continuous rolling applications, DEMY bearings have achieved:

· Stable operation for over 20,000 hours 

· Reduced downtime by up to 40% 

· Extended replacement cycle from 12 to 24 months

High Temperature Performance

· Stable operation up to 150°C 

· Suitable for harsh industrial environments

· Optional high-temperature lubrication available

 Precision Manufacturing

· Raceway roundness accuracy: ≤ 0.003 mm 

· Low vibration and low noise operation

· Improved machine stability and efficiency

Flexible Structure Options

Available series:

· NU Series 

· NN Series 

· NNU Series 

Applicable to:

· Cement mills

· Steel continuous casting machines

· Marine propulsion systems

· Heavy-duty industrial gear systems

Application

Our bearings are widely used in:

· Steel & metallurgy industry

· Mining & quarry machinery

· Heavy-duty conveyors

· Cement production lines

· Marine and shipbuilding equipment

· Industrial gear systems

Installation and Maintenance Guide

To ensure optimal performance:

Before installation

· Apply correct preload based on equipment design

· Ensure shaft and housing precision alignment

During operation

· Regularly monitor temperature and vibration

· Use suitable high-performance lubricants

Maintenance advantage

· Extended lubrication intervals

· Reduced wear and downtime

Quality Assurance

Every DEMY bearing is strictly tested:

· 12-step inspection process

· 500-hour endurance testing

· 100% load verification

· Compliance with ABEC-1 / ABEC-3 standards 

Why Choose DEMY?

✔ 20+ Years Manufacturing Experience

Deep expertise in industrial bearing engineering.

✔ Large-Scale Production Capacity

Up to 1,000,000 sets/year for stable global supply.

✔ Exported to 30+ Countries

Trusted by international steel, mining, and machinery industries.

✔ Custom Engineering Support

We provide:

· Non-standard bearing design

· High-temperature solutions

· Application-specific optimization

Get a Quote Today

Looking for high-load bearing solutions for your equipment?

Contact DEMY for:

· Technical drawings

· Price list

· Custom design support

· Bulk order quotation