Ensure smooth, precise rotation in your industrial machinery with the Needle Roller Bearing RNA4834, engineered to deliver reliable performance even under heavy radial loads. This 185x215x45mm closed-type bearing—crafted from high-grade bearing steel—minimizes downtime by maintaining stability across P0-P4 precision grades, making it ideal for machinery where consistent motion is critical.
Whether you’re replacing worn components or building new equipment, this bearing balances durability and precision to keep your operations running without interruption.
Especificaciones del Producto
| RNA4834 |
| 185*215*45 mm |
Industrias de Aplicación
Industrial machinery operators know the frustration of unexpected downtime caused by bearing failure. A single seized needle roller bearing in critical equipment like gearboxes or printing machines can halt production lines, leading to lost revenue and expensive repairs. Many face challenges with sourcing reliable bearings that meet precision requirements while offering flexible ordering options for both emergency replacements and bulk production needs.
The RNA4834 Needle Roller Bearing addresses these pain points with its robust design and precise manufacturing. As a radial needle bearing with closed type construction, it delivers exceptional load-bearing capacity in a compact 185x215x45mm form factor. Our production capabilities ensure consistent quality from P0 to P4 precision grades, suitable for demanding industrial applications. With 16 years of manufacturing experience and ISO 9001:2015 certification, we provide a one-stop solution for both standard bearings and customized requirements.
This closed type needle roller bearing excels in applications involving high radial loads and moderate speeds, common in industrial gearboxes, printing machinery, and agricultural equipment. Its bearing steel construction ensures durability under continuous operation, while the available clearance options (C0, C3, C4) allow adaptation to thermal expansion and mounting conditions. The design without inner and outer rings maximizes load capacity for space-constrained installations, making it ideal for machinery where compact dimensions are critical.
Características Técnicas Que Importan
Precision rating directly impacts machinery performance – our RNA4834 is available from P0 (standard) up to P4 (high precision), controlling radial runout and ensuring smooth operation. Clearance selection is equally important: C0 for standard applications, C3 for higher temperature environments, and C4 for heavy load conditions with thermal expansion. The closed type design provides effective contamination protection, extending service life in industrial settings. Lubrication flexibility (grease or oil) allows adaptation to specific operating speeds and maintenance schedules, optimizing bearing performance for each unique application.
Choosing authentic RNA4834 185x215x45mm bearings eliminates the hidden costs of counterfeit products. Inferior bearings often fail prematurely, causing secondary damage to shafts and housings – repairs that typically cost 5-10 times the bearing price. Our strict quality control includes incoming material inspection and full-process production supervision, ensuring each bearing meets ISO industrial standards. The 12-month warranty provides additional security, while our professional technical team helps select the right precision grade and clearance, avoiding premature failures due to misapplication.
Nuestro Compromiso con el Suministro Confiable
With a production capacity of 1,000,000 units annually and flexible order policies (1 piece MOQ for standard bearings), we ensure timely availability for both emergency repairs and scheduled maintenance. Our in-house laboratory conducts dimensional detection and performance testing, while ISO 14001 certification reflects our commitment to environmental management. We support OEM/ODM customization, adjusting specifications to match customer drawings and application requirements. Distributors and wholesalers benefit from free samples (freight borne by customer) and efficient delivery – 3-5 working days for samples and 5-15 days for bulk orders.
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, incluyendo exprés, aéreo y flete marítimo
Información de seguimiento en tiempo real proporcionada para todos los envíos
Cantidad mínima de pedido de 1 pieza para rodamientos estándar
Don't let equipment downtime affect your productivity. Whether you need a single replacement bearing or bulk quantities for production, we ensure fast delivery and reliable performance. Send us your requirements including quantity and precision grade, and our team will provide a tailored quotation within 24 hours.
Preguntas Frecuentes
Q: Is this a genuine Saifan bearing?
A: Yes, all our products are manufactured in our Jinan facility and meet strict quality standards. We provide certification of origin and quality control documentation with each order.
Q: How do I confirm if RNA4834 is suitable for my equipment?
A: Our technical team can assist with选型 based on your equipment model, load requirements, and operating conditions. Please provide application details for a professional recommendation.
Q: ¿Cuál es su política de garantía?
A: We offer a 12-month warranty from the date of delivery. Defective products due to manufacturing issues will be replaced free of charge or refunded according to customer preference.
P: ¿Cuál es la cantidad mínima de pedido?
A: Standard bearings like RNA4834 have a 1 piece MOQ, supporting both emergency repairs and small-batch purchases.
P: ¿Qué tan rápido pueden enviar?
A: Sample orders ship within 3-5 working days, while bulk orders typically dispatch within 5-15 working days depending on quantity and specifications.
P: ¿Ofrecen soporte técnico para la instalación?
A: Yes, our professional technical team provides free guidance on bearing selection, installation, lubrication, and maintenance, including remote troubleshooting support.
¿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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