Ensure smooth, precise rotation for your industrial machinery with our Needle Roller Bearings, engineered to deliver reliable performance even under heavy radial loads. Designed for models NA4924, NA4926, and NA4928 (120x165x45mm), these bearings combine P0-P4 precision grades with high-grade bearing steel construction to minimize vibration and extend equipment lifespan.
Especificaciones del Producto
| NA4924 |
| 120*165*45 mm |
Industrias de Aplicación
| Machine Tools, Printing Machinery, Gearboxes |
| Reducers, Conveyors, Compressors |
Industrial machinery operators know the cost of unexpected downtime—missed deadlines, maintenance overtime, and production losses add up fast. When standard bearings fail prematurely or precision doesn’t meet requirements, your entire operation suffers. Sourcing reliable needle roller bearings with the right dimensions and performance ratings shouldn’t be a challenge, especially when equipment depends on 120x165x45mm P0-P4 precision components.
Our Needle Roller Bearings NA4924, NA4926, and NA4928 are designed to solve these pain points. As an integrated manufacturer with over 18 years of experience, we ensure each bearing meets strict quality control standards, from raw material selection to final inspection. With a 12-month global warranty and free technical guidance, these industrial bearings deliver consistent performance in machine tools, reducers, and printing equipment—applications where radial load capacity and precision are non-negotiable.
These needle roller bearings excel in high-load, moderate-speed industrial environments. Without inner and outer rings, they offer space-saving design advantages for compact machinery, while bearing steel construction ensures durability under continuous operation. Whether your equipment faces shock loads, variable temperatures, or constant vibration, the closed-type design and grease/oil lubrication flexibility adapt to diverse working conditions, reducing maintenance frequency and extending service life.
Precisión Técnica Que Impulsa el Rendimiento
Key technical features set these bearings apart. The P0-P4 precision ratings ensure minimal runout and vibration, critical for precision machinery where even微小偏差 can affect product quality. Clearance options (C0, C3, C4) allow customization for thermal expansion needs—C3 and C4 clearances are ideal for applications with temperature fluctuations, preventing premature failure from tight fits. The closed design enhances contamination resistance, a must in manufacturing environments where dust and debris are constant threats.
Por qué escatimar en rodamientos cuesta más
Choosing low-quality bearings may save upfront costs, but the hidden expenses are steep. Early failures lead to unplanned shutdowns; a single day of production loss in a manufacturing plant can exceed the price of premium bearings. Our industrial needle bearings, backed by ISO9001 and ISO14001 certifications, reduce total cost of ownership by minimizing downtime, lowering maintenance needs, and ensuring longer service intervals. When every rotation counts, reliable components prevent cascading equipment damage and keep your operation running.
Su Socio de Rodamientos de Confianza a Largo Plazo
At Jinan Saifan Bearing, we prioritize stability and transparency. Our full R&D and QC lab ensures each bearing meets design specifications, while flexible order terms (1pc MOQ for standard items) support both emergency repairs and bulk production needs. With 3-5 days sample lead time and 5-15 days bulk delivery, we keep your supply chain moving. We’ve served global buyers across Europe, America, and Southeast Asia since 2005, building a reputation for defect replacement/refund responsiveness and consistent supply—even amid raw material market fluctuations.
Embalaje y Envío
Embalaje seguro de cartón y paletas para prevenir daños durante el tránsito
Tiempo de entrega de 3 a 7 días para pedidos estándar
Múltiples opciones logísticas: DHL, FedEx, UPS, transporte aéreo y transporte marítimo
Seguimiento en tiempo real proporcionado para todos los envíos
Don’t let bearing issues slow your production. Whether you need NA4924, NA4926, NA4928, or custom dimensions, our team can confirm specifications and deliver quickly. Send us your bearing model, application details, and quantity—we’ll provide a competitive quote within 24 hours, helping you get back to full operation faster.
Preguntas Frecuentes
Q: Are these needle roller bearings authentic and traceable?
A: Yes, we maintain full quality control from manufacturing to delivery, with batch tracking and ISO certifications ensuring authenticity.
Q: How do I confirm if the NA4924 size (120x165x45mm) fits my equipment?
A: Proporcione el modelo de su equipo o las dimensiones del eje/alojamiento, y nuestro equipo técnico verificará la compatibilidad sin costo alguno.
Q: ¿Cuál es la cobertura de garantía para estos rodamientos?
A: We offer a 12-month global warranty, including free replacement or refund for manufacturing defects.
Q: What is the minimum order quantity for NA series bearings?
A: Standard items have a 1pc MOQ, supporting both small repairs and large-scale orders.
P: ¿Qué tan rápido puedo recibir mi pedido?
A: Samples ship in 3-5 days, and bulk orders deliver within 5-15 days depending on quantity.
Q: What lubrication is recommended for these needle roller bearings?
A: Both grease and oil lubrication are suitable; we can provide specific recommendations based on your operating speed and temperature.
¿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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