Needle Roller Bearings

Needle Roller Bearing RNA4840 RNA4844 RNA4848 for Industrial Machinery with P0-P4 Precision

SKU: b77b7a38a187 In Stock

Ensure smooth, precise rotation in your industrial machinery with our Needle Roller Bearing series (RNA4840, RNA4844, RNA4840). Engineered to deliver P0-P4 precision, these bearings minimize downtime and enhance equipment reliability, even under heavy radial loads. Crafted from high-grade bearing steel with a closed design, they excel in applications requiring compact installation and consistent performance—ideal for machine tools, textile machinery, and printing equipment.

  • Radial load optimized with a 220*250*50 mm specification (RNA4840) for seamless integration into industrial setups
  • Flexible lubrication options (grease or oil) to adapt to your machinery’s unique operating conditions
  • Backed by our ISO 9001-certified quality control and 12-month warranty, ensuring long-term peace of mind
Wholesale Price (FOB)
¥1.50
MOQ: 1 Piece • Bulk discounts available on inquiry
SEND INQUIRY WHATSAPP
12-Month Warranty
Free Samples
Global Shipping
Product Specifications

Technical Details & Description

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

Clasificación de Precisión

P0 P6 P5 P4 P2

Liquidación

C0 C3 C4

Tiempo de Entrega

3-7 días

Servicio

OEM ODM

Paquete de Transporte

Palet de cartón

Especificación

Origen

China

Código HS

8482102000

Capacidad de Producción

1000000

RNA4840
220*250*50 mm

Industrias de Aplicación

Industria

Equipo Típico

Maquinaria Industrial

Herramientas de Máquina, Equipos de Impresión, Reductores

Automotriz

Sistemas de Transmisión, Cajas de Cambios

Maquinaria Agrícola

Cosechadoras, Tractores

Construcción

Excavadoras, Maquinaria de Carga Pesada

Nueva Energía

Aerogeneradores, Equipos Solares

Minimize Downtime with Precision RNA4840 RNA4844 RNA4848 Needle Roller Bearings for Industrial Machinery

Industrial machinery operators know the frustration of unexpected downtime caused by bearing failures. When low-quality bearings fail prematurely, production lines stop, maintenance costs rise, and deadlines are missed. Sourcing reliable bearings with the right precision grade and quick delivery can be a challenge, especially when dealing with multiple suppliers for different models.

Engineered for Reliability: P0-P4 Precision Needle Roller Bearings

Our RNA4840, RNA4844, and RNA4848 Needle Roller Bearings are designed to address these pain points. As an integrated manufacturer with ISO9001 and ISO14001 certifications, we ensure consistent quality across every unit. With P0-P4 precision ratings, these bearings meet the strict requirements of industrial machinery, providing stable performance in machine tools, reducers, and printing equipment. Our 1pc MOQ and 3-7 day delivery time mean you can get the exact bearings you need without waiting for large orders.

Rendimiento Óptimo en Entornos Industriales Exigentes

These needle roller bearings excel in applications requiring high radial load capacity in a compact design. The closed type construction and bearing steel material ensure durability even under heavy loads and continuous operation. Without inner and outer rings, they offer space-saving solutions for machinery where installation dimensions are critical. Whether used in agricultural harvesters, construction excavators, or new energy equipment, these bearings deliver reliable rotation to keep your operations running smoothly.

Características Técnicas Clave Que Importan

The precision rating of a bearing directly impacts machinery performance. Our P0-P4 precision range allows you to select the exact level needed: P0 for general industrial use, P4 for high-precision applications like CNC machine tools. Clearance options (C0, C3, C4) accommodate different operating conditions—C3 and C4 provide extra space for thermal expansion in high-temperature environments. The closed design protects internal components from contaminants, reducing maintenance needs. With lubrication flexibility (grease or oil), these bearings adapt to various speed and load requirements, ensuring optimal friction reduction and heat dissipation.

Por qué los rodamientos de calidad reducen el costo total de propiedad

Choosing genuine, high-quality needle roller bearings like our RNA4840 series minimizes long-term costs. Inferior bearings may have lower upfront prices but often fail prematurely, leading to unplanned downtime, replacement labor, and potential damage to connected components. Our bearings, backed by a 12-month global warranty, offer consistent performance and longer service life, reducing the frequency of replacements. With ISO certifications and strict quality control processes, we ensure each bearing meets international standards, providing peace of mind and reliability that cheap alternatives cannot match.

Nuestro Compromiso con Su Éxito

With over 18 years of experience manufacturing bearings for global buyers, we have built a reputation for reliability. Our full R&D and QC lab ensure each bearing undergoes rigorous testing before shipment. We offer free technical guidance to help you select the right bearing for your application, and our defect replacement policy ensures you receive only the best products. As a direct manufacturer, we provide competitive pricing without compromising quality. Our global distribution network allows us to serve customers across Europe, America, Southeast Asia, and the Middle East with efficient logistics and responsive support.

Packaging & Shipping

    Embalaje seguro de cartón y paletas para prevenir daños durante el tránsito

  • 3-7 day delivery time for standard items to meet urgent needs
  • Flexible shipping options including express (DHL, FedEx, UPS), air, and sea freight

    • Seguimiento en tiempo real proporcionado para todos los envíos

  • 1pc MOQ available for standard bearings, supporting small-batch and emergency orders

Obtenga sus rodamientos de rodillos de aguja de precisión hoy

Don’t let bearing issues slow down your production. Whether you need RNA4840, RNA4844, RNA4848, or other industrial bearings, we have the expertise and inventory to meet your requirements. Send us your bearing model, application details, and quantity, and our team will provide a prompt quote to help you get back to full operation quickly.

Preguntas Frecuentes

Q: ¿Son estos rodamientos de agujas genuinos y trazables?

A: Sí, somos un fabricante integrado con estrictos procesos de control de calidad. Cada rodamiento se produce en nuestra instalación certificada por ISO y se puede rastrear a través de nuestros registros de producción.

Q: How do I confirm if the RNA4840 bearing is suitable for my machine?

A: Provide your equipment model or operating parameters (load, speed, temperature), and our technical team will assist with选型确认 to ensure compatibility.

Q: ¿Cuál es la política de garantía para estos rodamientos?

A: We offer a 12-month global warranty covering manufacturing defects. Defective products will be replaced or refunded according to our warranty terms.

Q: What is the minimum order quantity for RNA4840 bearings?

A: We accept 1pc MOQ for standard items, making it easy to order small quantities for maintenance or testing.

P: ¿Cuánto tiempo tarda en enviarse después de realizar el pedido?

A: Standard items have a 3-7 day delivery time. For large or custom orders, lead times will be confirmed during the quotation process.

Q: Can you provide OEM/ODM services for these needle roller bearings?

A: Yes, we offer full OEM/ODM customization to meet specific design requirements, including material, precision, and packaging options.

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

Sample Policy

Free samples available for distributors. 3–5 days production lead time.

Bulk Delivery

5–15 days for bulk orders. T/T, L/C and Alibaba payments accepted.

Certifications

ISO 9001:2015, ISO 14001 certified. ABMA / DIN compliant.

After-Sales

12-month warranty plus dedicated technical failure analysis support.

Related Products

You May Also Need

VIEW ALL PRODUCTS
Engineering Insights

Latest from Our Knowledge Base

ALL ARTICLES