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 |
| Specification |
As Your Request |
| 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 |
| Engineering |
Excavators, Heavy Duty Equipment |
Reduce Downtime with Reliable Double Row Cylindrical Roller Bearings NU320 NU322 NU324 EC M/J C3/C4
Industrial machinery operators know the frustration of unexpected downtime caused by bearing failure. When production lines stop due to premature bearing wear or incorrect specifications, the costs add up quickly—from lost output to emergency repair expenses. Sourcing high-quality bearings that meet exact technical requirements can be challenging, especially when dealing with multiple suppliers for different components.
Precision Bearings for Industrial Machinery Performance
Our Double Row Cylindrical Roller Bearing NU320 NU322 NU324 EC M/J C3/C4 is engineered to address these challenges. As a professional bearing manufacturer with decades of industry experience, we produce bearings from P0 to P4 precision grade and Z2/Z3/Z4 noise grade, ensuring they meet the demands of industrial machinery. The separated design allows for easy installation and maintenance, while the brass or steel cage options provide stability in various operating conditions. Whether used in machine tools, gearboxes, or reducers, these bearings deliver consistent performance to keep your equipment running smoothly.
Optimal Performance in Demanding Industrial Conditions
Double Row Cylindrical Roller Bearings are designed to handle radial loads and moderate axial loads, making them ideal for applications with high rotational speeds and heavy loads. The C3 and C4 clearance options accommodate thermal expansion in machinery operating at elevated temperatures, preventing premature failure due to tight fitting. With a hardness of 60-64 HRC, these bearings offer excellent wear resistance, ensuring long service life even in dusty or contaminated industrial environments. Choosing the right bearing for your specific machinery—whether it’s a printing press or an agricultural tractor—directly impacts operational efficiency and maintenance costs.
Key Technical Features That Matter
The clearance grade of a bearing significantly affects its performance. C3 clearance is suitable for applications where thermal expansion is expected, providing extra space to prevent overheating and seizure. C4 clearance offers even more tolerance, ideal for high-speed machinery or situations with significant temperature variations. The cage material also plays a critical role: brass cages excel in high-temperature environments and offer better strength, while steel cages provide cost-effective durability for standard industrial applications. Additionally, the vibration grades Z1V1 to Z3V3 ensure smooth operation, reducing noise and minimizing wear on adjacent components, which is essential for precision equipment like CNC machines.
Why Genuine Bearings Lower Total Cost of Ownership
Opting for genuine Double Row Cylindrical Roller Bearings may seem like a higher initial investment compared to counterfeit alternatives, but the long-term savings are substantial. Counterfeit bearings often fail prematurely due to substandard materials and poor manufacturing processes, leading to unplanned downtime, costly repairs, and potential damage to other machine components. Our bearings meet ISO, ABMA, and DIN international industrial standards, ensuring consistent quality and reliability. With a 12-month warranty, you can trust that our products will perform as expected, reducing the total cost of ownership by minimizing maintenance and replacement expenses over time.
Our Commitment to Quality and Service
With over 15 years of manufacturing and export experience, Jinan Saifan Bearing Co., Ltd has established a reputation for reliability. Our factory is equipped with advanced precision processing equipment and automated production lines, supported by a professional technical R&D team and experienced QC staff. We implement strict incoming raw material inspection and full-process production supervision, with an in-house laboratory conducting dimensional detection, noise & vibration tests, and service life experiments. Certified with ISO 9001:2015 Quality Management System and ISO 14001 Environmental Management System, we ensure every bearing meets high standards. Our one-stop service covers independent R&D, mass production, brand bearing supply, and global sales, with flexible order policies—1 piece MOQ for standard bearings and sample orders without MOQ—to support your needs.
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 your delivery requirements
- 1 piece MOQ for standard bearings, supporting both small and large volume orders
Secure Your Bearings Today
Don’t let bearing issues disrupt your production schedule. Whether you need a single NU320 bearing for emergency repair or bulk NU322/NU324 bearings for planned maintenance, we have you covered. Send us your requirements, including bearing型号, quantity, and application details, and our team will provide a prompt quote to help you get back to full operation quickly.
Frequently Asked Questions
Q: Are these bearings genuine and traceable?
A: Yes, we are a professional manufacturer with strict quality control processes. All our bearings are produced in-house and come with full traceability documentation.
Q: How can I confirm the correct bearing model for my equipment?
A: Our professional technical team can assist with选型 based on your equipment specifications, operating conditions, and load requirements. Provide us with details about your machinery, and we’ll help ensure compatibility.
Q: What is the warranty period for these bearings?
A: We offer an official 12-month warranty from the date customers receive the goods, covering manufacturing defects.
Q: What is the minimum order quantity?
A: We offer flexible order rules with a 1 piece MOQ for standard bearings, making it easy to order both small and large quantities.
Q: How long does shipping take?
A: Sample orders are shipped within 3-5 working days, and bulk orders take 5-15 working days, depending on quantity and customization requirements.
Q: Can you provide technical support for installation and maintenance?
A: Yes, our professional technical team offers free guidance on bearing selection, installation, lubrication, and daily maintenance, including remote troubleshooting support.
Ready to order or need a quote?
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Tags:
C3 Clearance Roller Bearing
Double Row Cylindrical Roller Bearing
Double Row Cylindrical Roller Bearing for Industrial Machinery
Industrial Machinery Bearings
NU320 Bearing
NU320 EC M/J C3 Roller Bearing
NU322 Bearing
NU324 Bearing
