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 |
| Origin |
Jiangsu China |
| HS Code |
8482800000 |
Application Industries
| Industry |
Typical Equipment |
| Industrial Machinery |
Machine Tools, Gearboxes, Reducers, Printing Machines |
| Automotive |
Transmission Systems, Drive Axles |
| Agricultural Machinery |
Tractors, Harvesters |
| New Energy Equipment |
Wind Turbines, Solar Tracking Systems |
Minimize Downtime with NNU4920 B/Sp C3 W33 Double Row Cylindrical Roller Bearing
Industrial machinery operators know the frustration of unexpected downtime caused by bearing failure. When a cylindrical roller bearing fails prematurely, it halts production lines, increases maintenance costs, and delays deliveries. Sourcing reliable bearings with the right specifications and flexible order terms often adds another layer of complexity to keeping operations running smoothly.
Engineered for Industrial Machinery Reliability
The NNU4920 B/Sp C3 W33 Double Row Cylindrical Roller Bearing addresses these challenges with precision manufacturing and adaptable design. As a professional bearing manufacturer with decades of experience, we produce this bearing to meet P0-P4 precision grades and Z2-Z4 noise levels, ensuring it performs consistently in industrial machinery applications. Whether integrated into gearboxes, printing machines, or reducers, this bearing delivers the stability needed for continuous operation.
Optimal Performance in Heavy-Duty Conditions
Designed for axial load handling in medium and large industrial equipment (120-190mm outer dimension), this double row cylindrical roller bearing excels in high-torque environments. Its separated structure allows for easy installation and maintenance, while the C3 clearance ensures proper operation under thermal expansion conditions common in heavy-duty machinery. The combination of bearing steel material (60-64 HRC hardness) and brass or steel cage options provides durability to withstand rigorous industrial workflows.
Technical Features That Enhance Machinery Performance
The NNU4920 B/Sp C3 W33 bearing incorporates critical technical features that directly impact operational efficiency. Its Z1V1-Z3V3 vibration grades reduce noise and vibration, minimizing wear on adjacent components. The availability of multiple clearance classes (C0-C5) allows customization to specific application requirements, ensuring optimal preload and heat dissipation. With a separated design, maintenance teams can quickly replace or inspect the bearing without disassembling the entire equipment, reducing downtime during scheduled servicing.
Why Genuine Bearings Matter for Total Cost of Ownership
Choosing genuine Double Row Cylindrical Roller Bearings over counterfeit alternatives directly affects your bottom line. Counterfeit bearings often fail prematurely due to substandard materials and poor manufacturing, leading to unplanned shutdowns, costly repairs, and potential damage to expensive machinery. Our bearings meet ISO international standards and undergo strict quality control—from raw material inspection to full-process production supervision—ensuring reliable performance and reducing long-term maintenance costs.
Our Commitment to Your Operations
With over 18 years of manufacturing and export experience, we stand behind the quality of our industrial machinery bearings. Our ISO 9001:2015 certified quality management system ensures consistent production standards, while our in-house laboratory conducts dimensional, noise, vibration, and service life tests. We offer flexible order policies, including 1 piece MOQ for standard bearings and 3-5 working days delivery for samples, supporting both emergency repairs and bulk production needs. Our professional technical team provides free guidance on selection, installation, and maintenance, helping you maximize bearing lifespan and equipment efficiency.
Packaging & Shipping
- Secure carton pallet packaging to prevent damage during transit
- 3-5 working days delivery for sample orders
- 5-15 working days delivery for bulk orders
- Multiple logistics options including express, air, and sea freight
- 1 piece MOQ for standard bearings, supporting small-batch and emergency purchases
Get Your NNU4920 Bearing Shipped Today
Don’t let bearing issues disrupt your production schedule. Whether you need a single replacement bearing or a bulk order for your manufacturing line, we can fulfill your requirements quickly. Send us your specifications, application details, and quantity, and our team will provide a prompt quote to help you get back to full operation.
Frequently Asked Questions
Q: Are these bearings genuine and traceable?
A: Yes, all our bearings are manufactured in our ISO-certified facility and come with complete traceability documentation, ensuring authenticity and quality.
Q: How do I confirm if this bearing fits my equipment?
A: Provide your equipment model, operating conditions (load, speed, temperature), and required specifications. Our technical team will verify compatibility and recommend the optimal bearing solution.
Q: What is the warranty policy for this bearing?
A: We offer a 12-month warranty from the date of delivery, covering manufacturing defects with free replacement or refund for qualified issues.
Q: What is the minimum order quantity?
A: Standard bearings have a 1 piece MOQ, allowing for emergency repairs and small-batch purchases. Customized orders have negotiable quantities.
Q: How quickly can you ship the NNU4920 bearing?
A: Sample orders ship within 3-5 working days, while bulk orders take 5-15 working days depending on quantity and specifications.
Ready to order or need a quote?
Send your bearing designation, application details, and quantity — we’ll respond within 24 hours.
