Especificaciones del Producto
Parámetro
Detalles
Número de modelo
| RNA4903 |
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
Especificación
22*30*13 mm
Origen
China
Código HS
8482102000
Industrias de Aplicación
Industria
Equipo Típico
Maquinaria Industrial
| Machine Tools, Gearboxes, Printing Equipment, Textile Machinery |
Automotriz
| Transmission Systems, Auxiliary Equipment |
Maquinaria Agrícola
| Tractors, Harvesters, Heavy Duty Farming Equipment |
Electrodomésticos
| Washing Machines, Air Conditioners, Power Tools |
Nueva Energía
Aerogeneradores, Sistemas de Seguimiento Solar
Reduce Downtime with RNA4903 Needle Roller Bearing 22x30x13mm for Industrial Machinery
Equipment operators know the frustration of unexpected downtime caused by bearing failures. When a needle roller bearing fails prematurely, it halts production lines, increases maintenance costs, and delays deliveries. Sourcing reliable precision bearings with flexible MOQ and fast delivery often feels like a challenge—especially for small-batch repairs or custom machinery needs.
Precision Engineered RNA4903 Bearing for Reliable Industrial Performance
Our RNA4903 Needle Roller Bearing addresses these pain points with its P0-P4 precision rating and robust bearing steel construction. Designed as a radial bearing without inner or outer rings, it fits seamlessly into compact mechanical assemblies where space is limited. With over 18 years of manufacturing experience, we ensure each bearing meets strict dimensional and performance standards, making it ideal for industrial machinery like gearboxes, printing equipment, and textile machines.
Rendimiento Óptimo en Entornos Industriales Exigentes
This needle roller bearing excels in applications requiring high radial load capacity within tight spaces. The closed design protects internal components from contaminants, while compatibility with both grease and oil lubrication allows adaptation to various operating conditions. Whether your machinery operates at moderate speeds in a factory setting or handles variable loads in agricultural equipment, the RNA4903 delivers consistent performance and extended service life.
Características técnicas que garantizan la fiabilidad a largo plazo
The RNA4903’s precision rating (from P0 to P4) directly impacts machinery accuracy—higher precision grades reduce vibration and noise, critical for sensitive equipment like CNC machines. Clearance options (C0, C3, C4) allow customization based on thermal expansion needs; C3 clearance, for example, accommodates higher operating temperatures without compromising performance. The bearing steel material provides excellent wear resistance, ensuring durability even in heavy-duty applications such as excavator components and industrial gearboxes.
Por qué los rodamientos genuinos importan para su resultado final
Choosing non-genuine bearings may seem cost-effective initially, but the hidden costs add up. Counterfeit bearings often fail early due to substandard materials and poor manufacturing, leading to unplanned downtime, replacement costs, and potential damage to adjacent components. Our RNA4903 bearings adhere to ISO industrial standards and undergo rigorous testing, including dimensional inspection and performance validation, ensuring you avoid these hidden expenses and maintain consistent production.
Nuestro Compromiso con la Calidad y el Servicio
As a professional bearing manufacturer since 2005, we combine advanced production technology with strict quality control. Our in-house laboratory conducts comprehensive tests, from noise and vibration analysis to service life evaluations, ensuring every bearing meets international standards. We hold ISO 9001:2015 and ISO 14001 certifications, reflecting our commitment to quality management and environmental responsibility. With a 12-month warranty and professional technical support, we stand behind our products and help you optimize bearing selection, installation, and maintenance.
Packaging & Shipping
Embalaje seguro de cartón y paletas para prevenir daños durante el tránsito
Los pedidos de muestra se envían dentro de 3-5 días hábiles; los pedidos al por mayor dentro de 5-15 días hábiles
Opciones de envío flexibles que incluyen express (DHL, FedEx), transporte aéreo y marítimo
Seguimiento logístico en tiempo real proporcionado para todos los pedidos
1 pieza MOQ para rodamientos estándar, apoyando reparaciones de emergencia y compras de pequeñas cantidades
Get Your RNA4903 Bearing Today
Don’t let bearing issues disrupt your operations. Whether you need a single replacement or bulk order, our RNA4903 Needle Roller Bearing is ready to ship. Contact us with your specifications, and our technical team will ensure you get the right bearing for your application—fast.
Preguntas Frecuentes
Q: Is this a genuine Saifan bearing?
A: Yes, all our bearings are manufactured in-house under strict quality control, with full traceability and compliance with ISO standards. We provide certification upon request.
Q: How do I confirm if the RNA4903 fits my machinery?
A: Provide your equipment model, operating conditions (load, speed, temperature), and required precision grade. Our technical team will verify compatibility and recommend the optimal clearance and lubrication.
P: ¿Cuál es la política de garantía?
A: Ofrecemos una garantía de 12 meses a partir de la fecha de entrega. Los productos defectuosos debido a problemas de fabricación serán reemplazados sin costo alguno o reembolsados.
P: ¿Cuál es la cantidad mínima de pedido?
A: Standard bearings have a 1-piece MOQ, making it easy to source single units for emergency repairs.
P: ¿Cuánto tiempo tarda el envío?
A: Sample orders ship within 3-5 working days; bulk orders take 5-15 working days. Express shipping typically arrives in 3-7 days worldwide.
Q: How can I verify the bearing’s quality upon receipt?
A: Each bearing includes dimensional specifications and batch testing reports. You can cross-check measurements and contact our team for additional quality verification support.
Ready to order or need a quote?
Send your bearing designation, application details, and quantity — we’ll respond within 24 hours.
