Saifan Bearing
SKF Bearings
Double Row Cylindrical Roller Bearing NU320 NU322 NU324 EC M/J C3/C4 for Industrial Machinery
Double Row Cylindrical Roller Bearing NU320 NU322 NU324 EC M/J C3/C4 for Industrial Machinery
Double Row Cylindrical Roller Bearing NU320 NU322 NU324 EC M/J C3/C4 for Industrial Machinery
Double Row Cylindrical Roller Bearing NU320 NU322 NU324 EC M/J C3/C4 for Industrial Machinery
Double Row Cylindrical Roller Bearing NU320 NU322 NU324 EC M/J C3/C4 for Industrial Machinery
Double Row Cylindrical Roller Bearing NU320 NU322 NU324 EC M/J C3/C4 for Industrial Machinery
Double Row Cylindrical Roller Bearing NU320 NU322 NU324 EC M/J C3/C4 for Industrial Machinery
Double Row Cylindrical Roller Bearing NU320 NU322 NU324 EC M/J C3/C4 for Industrial Machinery
Double Row Cylindrical Roller Bearing NU320 NU322 NU324 EC M/J C3/C4 for Industrial Machinery
Double Row Cylindrical Roller Bearing NU320 NU322 NU324 EC M/J C3/C4 for Industrial Machinery
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Double Row Cylindrical Roller Bearing NU320 NU322 NU324 EC M/J C3/C4 for Industrial Machinery

SKU: c686f4caf5e0

Ensure smooth, high-precision operation for your industrial machinery with our Double Row Cylindrical Roller Bearing NU320/NU322/NU324 EC M/J series. Engineered to handle heavy radial loads while maintaining stability across C3/C4 clearance options, these bearings reduce downtime and extend equipment lifespan in demanding manufacturing environments.

  • Separated design with brass/steel cages enables easy installation and maintenance, ideal for machine tools and reducers requiring quick part replacement
  • 60-64 HRC hardness and Z2V2 vibration grade ensure consistent performance under variable speeds, addressing the need for reliable rotation in critical industrial processes
  • Available in medium-large outer dimensions (120-190mm) to fit standard industrial machinery specifications, backed by Saifan's ISO 9001-certified quality control for peace of mind
Factory Price
¥1.10
MOQ: 1pc · Bulk discount available
ISO 9001
Certified
12-Month
Warranty
3-5 Days
Sample Delivery
Technical Documentation

Product Details

Especificaciones del Producto

Parámetro

Detalles

Modelo NO.

Dimensión Externa

Mediano y Grande(120-190mm)

Material

Acero para rodamientos

Esférico

Rodamientos No Alineados

Dirección de Carga

Separado

Separado

Liquidación

Jaula

Vibración

Paquete de Transporte

Palet de Cartón

Especificación

Código HS

Double Row Cylindrical Roller Bearing
Axial Bearing
C0 C2 C3 C4 C5
Brass, Steel
Z1V1 Z2V2 Z3V3
Hardness 60-64 HRC
As Your Request
8482800000

Industrias de Aplicación

Industria

Equipo Típico

Maquinaria Industrial

Herramientas de Máquina, Cajas de Engranajes, Reductores, Máquinas de Impresión

Automotriz

Sistemas de Transmisión, Ejes Motrices

Maquinaria Agrícola

Tractores, Cosechadoras

Ingeniería

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.

Rodamientos de Precisión para el Rendimiento de Maquinaria Industrial

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.

Rendimiento Óptimo en Condiciones Industriales Exigentes

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.

Características Técnicas Clave que Importan

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.

Por qué los rodamientos genuinos reducen el costo total de propiedad

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.

Nuestro Compromiso con la Calidad y el Servicio

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.

Embalaje y Envío

    El embalaje en palets de cartón garantiza un transporte y almacenamiento seguros

    Los pedidos de muestra se envían dentro de 3-5 días hábiles

    Pedidos al por mayor entregados en 5-15 días hábiles

    Múltiples opciones logísticas disponibles para satisfacer sus requisitos de entrega

  • 1 piece MOQ for standard bearings, supporting both small and large volume orders

Asegure sus rodamientos hoy

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.

Preguntas Frecuentes

P: ¿Son estos rodamientos genuinos y trazables?

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: ¿Cómo puedo confirmar el modelo de rodamiento correcto para mi equipo?

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.

P: ¿Cuál es el período de garantía para estos rodamientos?

A: We offer an official 12-month warranty from the date customers receive the goods, covering manufacturing defects.

P: ¿Cuál es la cantidad mínima de pedido?

A: We offer flexible order rules with a 1 piece MOQ for standard bearings, making it easy to order both small and large quantities.

P: ¿Cuánto tiempo tarda el envío?

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: ¿Puede proporcionar soporte técnico para la instalación y el mantenimiento?

A: Sí, nuestro equipo técnico profesional ofrece orientación gratuita sobre la selección de rodamientos, instalación, lubricación y mantenimiento diario, incluyendo soporte para resolución de problemas a distancia.


¿Listo para hacer un pedido o necesita una cotización?

  • Envíe su designación de rodamiento

Quality Assurance
100% Inspection

High-grade chrome steel, raw material QC, full-process monitoring, ISO/ABMA/DIN compliance.

Delivery
3-15 Days

Samples in 3-5 days, bulk orders 5-15 days. Free samples for distributors (freight collect).

Customization
Full OEM/ODM

P0-P4 precision grades, Z2-Z3-Z4 noise levels. Custom drawings welcome.

After-Sales
12-Month Warranty

Professional technical guidance and failure solutions from our R&D team.

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Need a Custom Solution?

Our R&D team supports full OEM/ODM customization with technical drawings. Contact us for stable factory pricing and reliable supply.