Saifan Bearing
Needle Roller Bearing NA4911 NA4912 NA4913 for Industrial Machinery 55x80x25mm P0-P4 Precision
Needle Roller Bearing NA4911 NA4912 NA4913 for Industrial Machinery 55x80x25mm P0-P4 Precision
Needle Roller Bearing NA4911 NA4912 NA4913 for Industrial Machinery 55x80x25mm P0-P4 Precision
Needle Roller Bearing NA4911 NA4912 NA4913 for Industrial Machinery 55x80x25mm P0-P4 Precision
Needle Roller Bearing NA4911 NA4912 NA4913 for Industrial Machinery 55x80x25mm P0-P4 Precision
Needle Roller Bearing NA4911 NA4912 NA4913 for Industrial Machinery 55x80x25mm P0-P4 Precision
Needle Roller Bearing NA4911 NA4912 NA4913 for Industrial Machinery 55x80x25mm P0-P4 Precision
Needle Roller Bearing NA4911 NA4912 NA4913 for Industrial Machinery 55x80x25mm P0-P4 Precision
Needle Roller Bearing NA4911 NA4912 NA4913 for Industrial Machinery 55x80x25mm P0-P4 Precision
Needle Roller Bearing NA4911 NA4912 NA4913 for Industrial Machinery 55x80x25mm P0-P4 Precision
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Needle Roller Bearing NA4911 NA4912 NA4913 for Industrial Machinery 55x80x25mm P0-P4 Precision

SKU: 00b781eaec38

Ensure smooth, precise rotation for your industrial machinery with the Needle Roller Bearing NA4911 NA4912 NA4913, engineered to deliver reliable performance even under heavy radial loads. Crafted from high-grade bearing steel with P0-P4 precision ratings, these 55x80x25mm bearings minimize vibration and extend equipment lifespan, making them ideal for machine tools, reducers, and textile machinery.

  • Designed without inner/outer rings for space-saving integration in compact assemblies
  • Supports both grease and oil lubrication to adapt to diverse operating conditions
  • Backed by our ISO 9001-certified quality control and 12-month warranty for long-term peace of mind
Factory Price
¥1.50
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.

Dirección de Carga

Rodamiento Radial

Estilo

Sin Anillo Exterior, Sin Anillo Interior

Material

Acero para rodamientos

Tipo

Cerrado

Nombre del Producto

Rodamiento de agujas

Lubricación

Grasa o Aceite

Calificación de Precisión

P0 P6 P5 P4 P2

Liquidación

C0 C3 C4

Tiempo de entrega

3-7días

Servicio

OEM ODM

Paquete de Transporte

Palet de Cartón

Especificación

Marca registrada

BDL

Origen

China

Código HS

8482102000

Capacidad de Producción

1000000

NA4911
55*80*25 mm

Industrias de Aplicación

Industria

Equipo Típico

Maquinaria Industrial

Herramientas de Máquina, Equipos de Impresión, Reductores

Fabricación de Piezas de Automóviles

Sistemas de Transmisión, Cajas de Cambios

Maquinaria Agrícola

Cosechadoras, Tractores

Nueva Energía

Aerogeneradores, Equipos Fotovoltaicos

Electrodomésticos

Motores, Bombas

Stop Equipment Downtime with NA4911 Needle Roller Bearing for Industrial Machinery

Industrial machinery operators know the frustration of unexpected downtime—especially when it’s caused by bearing failures. Low-quality bearings often fail prematurely under heavy loads, leading to production delays and costly repairs. Sourcing precision bearings with reliable delivery and consistent quality can be a challenge, especially when dealing with multiple suppliers or minimum order requirements that don’t fit your needs.

NA4911 Needle Roller Bearing: Precision Engineered for Reliable Performance

Our NA4911 Needle Roller Bearing addresses these pain points with its P0-P4 precision rating and robust design, ideal for industrial machinery like machine tools and reducers. As an integrated manufacturer with over 15 years of experience, we ensure each bearing meets strict quality standards through our in-house R&D and QC lab. With a 1pc MOQ for standard items and 3-7 days delivery, we support both emergency repairs and regular production needs without compromising on lead time.

Optimizado para Aplicaciones Industriales de Alta Dureza

The NA4911 Needle Roller Bearing is engineered to handle radial loads in high-stress environments, making it perfect for industrial machinery operating under continuous rotation. Its 55x80x25mm dimension and closed type design provide stability in applications like printing equipment and gearboxes, where precision and durability directly impact operational efficiency. The bearing’s compatibility with both grease and oil lubrication allows flexibility across different working conditions, ensuring consistent performance even in varying temperatures.

Características técnicas que impulsan el rendimiento

Three key technical specifications set this bearing apart: precision rating, clearance options, and material quality. The P0-P4 precision range ensures minimal vibration and noise, critical for high-speed machinery where accuracy is paramount. Clearance options (C0, C3, C4) allow customization based on thermal expansion needs, preventing premature wear in temperature-fluctuating environments. Crafted from high-grade bearing steel, the NA4911 offers excellent wear resistance, extending service life and reducing replacement frequency—ultimately lowering long-term maintenance costs.

Por qué los rodamientos de calidad importan para su resultado final

Choosing substandard needle roller bearings may seem cost-effective initially, but the hidden costs add up quickly. Early failures lead to unplanned downtime, expensive repairs, and potential damage to adjacent components. Our bearings, backed by ISO9001 and ISO14001 certifications, meet global industry standards, ensuring reliable performance and reducing the risk of production interruptions. With a 12-month global warranty and defect replacement policy, we stand behind our products, helping you avoid the financial impact of bearing-related issues.

Su Socio de Confianza para Soluciones de Rodamientos

At Jinan Saifan Bearing, we’ve built our reputation on reliability and technical expertise. Since 2005, we’ve served global buyers across Europe, America, and Southeast Asia, delivering over 1 million bearings annually. Our full OEM/ODM capabilities mean we can customize bearings to your exact specifications, while our strict confidentiality protocols protect your designs. We provide free technical guidance to ensure proper installation and performance, and our responsive after-sales team ensures quick resolution to any issues. With free samples (buyer covers freight) and flexible payment options including T/T and Alibaba trade, we make the procurement process seamless.

Embalaje y Envío

    Embalaje seguro en pallets de cartón para evitar daños durante el tránsito

  • 3-7 days delivery time for standard items, ensuring quick turnaround for urgent needs
  • Multiple logistics options including DHL, FedEx, UPS, air, and sea freight to match your timeline and budget
  • Seguimiento en tiempo real proporcionado para todos los envíos, manteniéndolo informado sobre el estado de entrega

  • 1pc minimum order quantity, supporting both small-scale repairs and bulk production requirements

Order Your NA4911 Needle Roller Bearing Today

Don’t let bearing issues slow down your operations. Whether you need a single replacement or bulk order, we’re ready to fulfill your request. Send us your bearing model, application details, and quantity, and our team will provide a quote within 24 hours. With our stable supply and competitive pricing, we’re here to keep your machinery running smoothly.

Preguntas Frecuentes

Q: Are these bearings authentic and reliable?

A: Yes, all our bearings are manufactured in-house under strict quality control processes and hold ISO9001 & ISO14001 certifications. We provide full traceability for each product.

Q: How do I confirm if the NA4911 is suitable for my equipment?

A: Provide your equipment model, load requirements, and operating conditions, and our technical team will verify compatibility and offer guidance at no cost.

Q: ¿Cuál es su política de garantía?

A: Ofrecemos una garantía global de 12 meses. Si un rodamiento falla debido a defectos de fabricación, proporcionamos reemplazo gratuito o reembolso.

P: ¿Cuál es la cantidad mínima de pedido?

A: For standard items like the NA4911, the minimum order quantity is 1 piece, ideal for emergency repairs.

P: ¿Cuánto tiempo tarda el envío?

A: Standard delivery is 3-7 days. We also offer expedited shipping options for urgent orders.

Q: Can you customize bearings to specific requirements?

A: Yes, we offer full OEM/ODM customization, including dimensions, precision grades, and materials, to meet your unique needs.

Ready to order or need a quote?
Send your bearing designation, application details, and quantity — we'll respond within 24 hours

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.