Ensure smooth, long-lasting operation for your industrial machinery with our high precision Needle Roller Bearing NA4860 NA4864 NA4868. Crafted from premium bearing steel and available in P0-P4 precision grades, these radial bearings deliver exceptional load capacity and minimal friction—perfect for reducing downtime in heavy-duty applications like machine tools and reducers.
Especificaciones del Producto
| NA4860 |
| 300*380*80 mm |
Industrias de Aplicación
Industrial machinery operators know the cost of bearing failure—unplanned downtime, missed deadlines, and costly repairs. When standard bearings can’t handle high radial loads or precise rotation, production lines suffer. Many suppliers force minimum orders that tie up capital, while others compromise on material quality, leading to premature wear. Finding a reliable source for precision needle roller bearings shouldn’t mean sacrificing flexibility or performance.
Our Needle Roller Bearing NA4860, NA4864, and NA4868 address these challenges directly. As an integrated manufacturer with ISO9001 and ISO14001 certifications, we produce each bearing to P0-P4 precision standards, ensuring consistent performance in critical applications like machine tool spindles and reducer assemblies. With a 1pc MOQ for standard items and 3-7 day delivery, we eliminate the need for large inventory stockpiles, letting you order exactly what you need when you need it.
These closed-type needle roller bearings excel in high-load, low-speed applications where space is limited. The 300*380*80 mm NA4860 model, constructed from premium bearing steel, delivers exceptional radial load capacity—ideal for agricultural machinery reducers and construction equipment gearboxes. Without inner or outer rings, they integrate seamlessly into existing component designs, reducing assembly complexity while maintaining structural integrity under continuous operation.
The technical specifications of our needle roller bearings directly impact your equipment’s efficiency. Our P0-P4 precision ratings ensure minimal radial runout, critical for maintaining alignment in CNC machine tools. Clearance options (C0, C3, C4) allow customization for thermal expansion in high-temperature environments, preventing seizure during extended operation. The closed design retains lubrication (grease or oil) effectively, reducing maintenance intervals and extending service life in dusty industrial settings.
Por qué escatimar en rodamientos cuesta más a largo plazo
Low-quality bearings may save money upfront, but they often fail within months, causing production halts that cost far more than the initial savings. A single downtime incident in a manufacturing plant can exceed $10,000 per hour. Our bearings, backed by a 12-month global warranty, undergo rigorous QC testing to ensure material purity and dimensional accuracy. We stand behind every unit—offering defect replacement or refund to protect your investment and keep your machinery running.
Since 2005, Jinan Saifan Bearing has served global buyers across Europe, America, and Southeast Asia, building a reputation for reliability. Our full R&D department and in-house QC lab ensure each bearing meets international standards, while OEM/ODM capabilities let us tailor solutions to your unique requirements. With free technical guidance and responsive after-sales support, we don’t just sell bearings—we partner with you to optimize your equipment performance.
Embalaje y Envío
Embalaje seguro en pallets de cartón para evitar daños durante el tránsito
Envío flexible a través de DHL, FedEx, UPS, aéreo o transporte marítimo
Seguimiento en tiempo real proporcionado para todos los pedidos
1pc cantidad mínima de pedido para apoyar reparaciones de emergencia y necesidades de pequeños lotes
Obtenga sus rodamientos de rodillos de aguja de precisión hoy
Don’t let subpar bearings slow your production. Whether you need NA4860, NA4864, NA4868, or custom-engineered solutions, our team is ready to assist. Send us your bearing model, application details, and quantity, and we’ll provide a competitive quote within 24 hours. With our fast delivery and technical expertise, you can minimize downtime and maximize productivity.
Preguntas Frecuentes
P: ¿Son estos rodamientos genuinos y trazables?
A: Yes, all our bearings are manufactured in-house under strict ISO standards, with full traceability from raw material to finished product.
P: ¿Cómo confirmo el rodamiento correcto para mi equipo?
A: Provide your equipment model or application parameters (load, speed, temperature), and our technical team will verify compatibility at no cost.
Q: ¿Cuál es su política de garantía?
A: Ofrecemos una garantía global de 12 meses que cubre defectos de fabricación, con reemplazo o reembolso gratuito para productos no conformes.
P: ¿Cuál es la cantidad mínima de pedido?
A: Los artículos estándar tienen un MOQ de 1 pieza, apoyando tanto reparaciones de emergencia como compras de pequeñas cantidades.
P: ¿Qué tan rápido pueden enviar?
A: Most standard bearings ship within 3-7 days; custom orders depend on specifications, typically 5-15 days.
P: ¿Ofrecen soporte técnico para la instalación?
A: Yes, our engineers provide free technical guidance on installation, lubrication, and maintenance to optimize bearing performance.
¿Listo para hacer un pedido o necesita una cotización?
Envíe su designación de rodamiento, detalles de la aplicación y cantidad — responderemos dentro de 24 horas.
High-grade chrome steel, raw material QC, full-process monitoring, ISO/ABMA/DIN compliance.
Samples in 3-5 days, bulk orders 5-15 days. Free samples for distributors (freight collect).
P0-P4 precision grades, Z2-Z3-Z4 noise levels. Custom drawings welcome.
Professional technical guidance and failure solutions from our R&D team.
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