Especificaciones del Producto
Parámetro
Detalles
Modelo NO.
Rodamiento de rodillos cilíndricos de doble hilera
Dimensión Externa
Mediano y Grande (120-190mm)
Material
Acero para rodamientos
Esférico
Rodamientos No Alineados
Dirección de Carga
Cojinete axial
Separado
Separado
Liquidación
C0 C2 C3 C4 C5
Jaula
Latón, Acero
Vibración
| Z1V1 Z2V2 Z3V3 |
Dureza
60-64 HRC
Paquete de Transporte
Palet de cartón
Código HS
8482800000
Industrias de Aplicación
Industria
Equipo Típico
Maquinaria de Construcción
Excavadoras, Cargadoras, Bulldozers
Minería
Trituradoras, Transportadores, Plataformas de Perforación
Herramientas de Máquina
Tornos CNC, Máquinas de Fresado, Husillos
Acero
Molinos de laminación, coladas continuas, grúas aéreas
Maquinaria Industrial
Cajas de engranajes, Bombas, Compresores
Minimize Downtime with Reliable Double Row Cylindrical Roller Bearing NNU4938/4940 B/Sp W33
Maintaining industrial machinery means dealing with unexpected bearing failures that halt production and increase costs. Sourcing authentic double row cylindrical roller bearings often involves long lead times from multiple suppliers, while inconsistent quality across channels raises risks of premature wear in critical equipment like gearboxes and rolling mills.
Authentic Double Row Cylindrical Roller Bearings, In-Stock for Immediate Delivery
Our NNU4938/4940 B/Sp W33 double row cylindrical roller bearing addresses these challenges with genuine quality and ready availability. As an official distributor, we maintain large centralized inventory to support urgent maintenance needs, ensuring you get the right bearing when you need it. Designed for industrial machinery, this bearing combines separated inner and outer rings for easy installation, making it ideal for high-load applications in mining and construction equipment.
Diseñado para el Rendimiento de Maquinaria Industrial de Alta Resistencia
This double row cylindrical roller bearing excels in demanding environments where axial and radial loads are present. With a hardness of 60-64 HRC and vibration grades up to Z3V3, it delivers stable performance in high-speed rotating equipment such as machine tool spindles and steel mill conveyors. The separated design allows for quick replacement during maintenance, reducing downtime and keeping your operations running efficiently.
Características técnicas clave que garantizan la longevidad
The NNU4938/4940 B/Sp W33 bearing incorporates critical features that directly impact equipment reliability. Its brass cage provides superior strength and heat resistance compared to standard steel cages, ensuring consistent roller spacing and reducing friction in high-temperature applications. Clearance options from C0 to C5 allow precise matching to operating conditions—C3 clearance, for example, accommodates thermal expansion in continuous-duty machinery, while C4 is suited for heavy shock loads in mining equipment. Vibration grades Z1V1 to Z3V3 meet strict noise and stability requirements, making it suitable for precision machine tools where smooth operation is essential.
Avoid Hidden Costs: Why Authenticity Matters for Industrial Bearings
Choosing non-genuine double row cylindrical roller bearings may seem cost-effective initially, but the long-term consequences are significant. Counterfeit bearings often fail prematurely due to substandard materials and poor manufacturing, leading to unplanned downtime, expensive repairs, and potential damage to connected components. Our bearings adhere to ISO 9001 quality standards, with each unit inspected before shipment to ensure compliance with original specifications. By investing in authentic bearings, you reduce total cost of ownership through extended service life and fewer replacements.
Su Socio de Confianza para Soluciones de Rodamientos Industriales
With official authorization from top bearing brands, we guarantee traceability for every product, backed by complete quality inspection documents. Our cross-brand technical team, with expertise in both European precision and American heavy-duty bearings, provides free选型 support to ensure you get the right fit for your equipment. Serving over 1,200 clients across 55+ countries, we’ve built a reputation for reliable large-project supply and unified quality certification. Our one-stop procurement process simplifies ordering, allowing you to mix brands and receive consolidated delivery, reducing supplier management costs.
Packaging & Shipping
Empaque de paletas de cartón seguro para prevenir daños durante el tránsito
disponible para entrega en 3-7 días hábiles
Opciones de logística global que incluyen DHL, FedEx, UPS, transporte aéreo y marítimo
Seguimiento en tiempo real proporcionado para todos los envíos
Cantidad mínima de pedido de 1 pieza, apoyando necesidades de mantenimiento de emergencia
Get Your NNU4938/4940 B/Sp W33 Bearing Today
Don’t let equipment downtime affect your productivity. Whether you need a single bearing for emergency repair or bulk orders for planned maintenance, we ensure prompt delivery and reliable performance. Send us your requirements now to get started.
Preguntas Frecuentes
Q: Are these bearings genuine?
A: Yes, we are an official authorized distributor, and every bearing can be traced to the authentic supply chain with complete authorization documents.
P: ¿Cómo confirmo si este rodamiento se ajusta a mi equipo?
A: Provide your equipment model or operating parameters, and our technical team will conduct free选型 verification to ensure compatibility.
P: ¿Cuál es la política de garantía?
A: We adhere to original manufacturer warranty standards, with unconditional replacement for manufacturing defects.
P: ¿Cuál es la cantidad mínima de pedido?
A: We accept orders for 1 piece, supporting urgent maintenance requirements.
P: ¿Cuánto tiempo tarda el envío?
A: 现货 items are shipped within 3-7 working days, with flexible logistics options including DHL, FedEx, UPS, air, and sea freight.
Q: ¿Cómo puedo verificar la autenticidad del rodamiento?
A: Each bearing comes with original packaging and security labels; we also provide complete traceability documents for verification.
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Send your bearing designation, application details, and quantity — we’ll respond within 24 hours.
