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Needle Bearing
Bdl Needle Roller Bearing Rna6918 Rna6919 Rna6920 High Quality
Experience smoother, longer-lasting machinery performance with our precision-engineered Needle Roller Bearing lineup, including RNA6918, RNA6919, and RNA6920 models. These high-quality bearings minimize friction to reduce wear on critical components, ensuring your equipment runs reliably even under heavy loads.
- Designed with optimized cage geometry to maintain consistent roller alignment, preventing premature failure in high-torque applications
- Constructed from premium-grade steel for exceptional durability, so you spend less time on replacements and more on productivity
7
Day Prototype
vs. 8-12 wks standard
50+
Countries Served
Global logistics network
12h
Quote Response
Expert engineers on call
Typical Applications
Wind Power
Mining
Steel & Metallurgy
Automotive / EV
Rail Transit
Precision Machinery
Genuine SKF Bearings
NDA Protected
Free Sample for Orders > $50K
Global Shipping
Product Details
Especificações do Produto
Adequação da Aplicação
| Hydraulic cylinders, conveyor systems, gearboxes |
| Construction machinery pivot points, agricultural implements |
Needle Roller Bearings RNA6918, RNA6919, RNA6920: Solving Common Sourcing Challenges
Finding the right needle roller bearings for your equipment often means navigating a maze of brands and specifications. Many buyers struggle with mismatched dimensions causing installation delays, or low-quality components leading to premature wear. Sourcing from multiple suppliers just to compare options only adds to the frustration.
Projetado para desempenho confiável em ambientes exigentes
Our RNA6918, RNA6919, and RNA6920 needle roller bearings address these challenges through ISO 9001-certified manufacturing processes and comprehensive quality testing. As a supplier with access to both our own brand and major international manufacturers, we provide a single source for all your bearing needs. These bearings excel in applications like hydraulic cylinder rods and自动化设备 where high radial load capacity in compact spaces is critical. Designed to handle high radial loads with minimal radial section height, these needle roller bearings perform best in rotating applications with moderate speeds. Their open-end design allows for easy lubrication maintenance, making them suitable for machinery operating in temperatures ranging from -20°C to 120°C. Proper selection based on load direction and operating clearance is essential to prevent premature failure in heavy-duty industrial settings. Principais Características de Engenharia que Impactam a Vida Útil
The precision-machined raceways of these needle roller bearings ensure consistent load distribution across the rollers, reducing stress concentrations. The high-carbon chromium steel construction provides surface hardness exceeding HRC 60, enhancing wear resistance in abrasive environments. Their optimized roller length-to-diameter ratio balances load capacity with rotational efficiency, while strict dimensional tolerances ensure interchangeability with major international standards. This combination of features directly contributes to extended service intervals and reduced maintenance requirements. Custo Total de Propriedade: Por que a Qualidade é Mais Importante que o Preço
Choosing inferior needle roller bearings may seem cost-effective initially, but frequently leads to higher long-term expenses. Early bearing failure can cause unplanned downtime, damage to adjacent components, and increased labor costs for replacements. Our bearings, manufactured to strict quality standards, help avoid these issues by maintaining consistent performance over extended periods. Following ISO 281 fatigue life calculations, proper selection ensures these bearings deliver predictable service life, making them a sound investment for critical machinery. Garantia de Qualidade que Você Pode Verificar
Every batch of RNA6918, RNA6919, and RNA6920 bearings undergoes comprehensive testing, including dimensional accuracy checks, hardness verification, and surface finish inspection. Our ISO 9001 certification covers the entire production process, from raw material incoming inspection to final product validation. We stand behind our products with a standard质保期, and offer replacements for any manufacturing defects. With access to extensive inventory and multiple brand options, we can fulfill orders according to your specific quality requirements and delivery timeline. Embalagem industrial padrão com envoltório protetor para evitar danos durante o transporte
Opções flexíveis de envio incluindo correio expresso, frete aéreo e transporte marítimo Baixa quantidade mínima de pedido para apoiar tanto instalações de teste quanto requisitos de produção total
Obtenha sua cotação de rolamentos hoje
Whether you need RNA6918, RNA6919, RNA6920, or other needle roller bearing models, provide us with your required specifications and quantity. Our team will quickly confirm availability and provide competitive pricing. With our extensive network of suppliers, we can also assist with sourcing other bearing types to meet your complete machinery requirements. Perguntas Frequentes Q: Can you supply other bearing brands or models besides those listed? A: Yes, we support inquiries for all bearing brands and models. We can source products according to your specific brand or dimensional requirements. Q: Como posso confirmar se esses rolamentos se ajustam ao meu equipamento?
A: Provide the required dimensions (bore diameter, outer diameter, width) or existing part number, and our technical team will verify compatibility with your application. P: Qual garantia vocês oferecem para esses rolamentos de agulhas?
A: We provide a standard质保期 against manufacturing defects. Specific warranty terms will be detailed in your order confirmation. Q: Qual é a quantidade mínima do pedido para esses rolamentos?
A: We offer low minimum order quantities to accommodate both small-scale trials and large production runs. Contact us for specific MOQ information. Q: How quickly can you ship after order placement? A: Stock items are typically shipped within 1-2 business days. Shipping time depends on your location and chosen delivery method. Q: Vocês oferecem soluções personalizadas de rolamentos?
A: Yes, we support OEM/ODM customization based on your technical drawings or specific performance requirements. Ready to order or need a quote?Optimal Performance Under Specific Load Conditions
Packaging & Shipping
Send the bearing model, dimensions (d x D x B), and quantity — we’ll get back to you with pricing and lead time.
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Product Summary
- Product Name
- Bdl Needle Roller Bearing Rna6918 Rna6919 Rna6920 High Quality
- Category
- Needle Bearing
- Brand
- SKF
- Certification
- ISO 9001 · TS 16949
- Lead Time
- 7 Working Days
Get a Custom Quote
Our engineers will respond within 12 hours with a tailored solution.
Request QuoteGeneral Specifications
| Bearing Type | Needle Bearing |
| Brand | SKF |
| Quality Standard | ISO 9001 / TS 16949 |
| Precision Grade | P0 / P5 / P6 (custom) |
| Material | Chrome Steel / Stainless |
| Cage Material | Steel / Brass / Polyamide |
| Lubrication | Grease / Oil (specify) |
| Operating Temp. | -40°C to +200°C |
| Min. Order Qty | 1 pc (samples available) |
| Prototype Lead Time | 7 Working Days |
Performance Parameters
| Load Capacity | Contact for C0/Cr values |
| Speed Rating | Contact for ndm limit |
| Vibration Level | Z1 / Z2 / Z3 (custom) |
| Noise Level | V1 / V2 / V3 (custom) |
| Fatigue Life | L10h per ISO 281 |
| Sealing Options | Open / Z / 2Z / RS / 2RS |
Custom Specifications Available
Our engineering team can modify bearing dimensions, materials, seals, and clearances to meet your specific operating requirements. Submit your drawing or spec sheet for a tailored proposal.
Wind Power
Main shaft bearings, gearbox bearings, and generator bearings for onshore and offshore wind turbines.
Mining & Quarrying
Heavy-duty bearings for crushers, conveyors, and rotary equipment in extreme dust and shock-load environments.
Steel & Metallurgy
High-temperature bearings for rolling mills, continuous casting, and furnace applications.
Automotive / EV
Wheel hub bearings, transmission bearings, and e-motor bearings for passenger and commercial vehicles.
Rail Transit
Axle box bearings, traction motor bearings, and gearbox bearings meeting EN/UIC railway standards.
Precision Machinery
High-precision spindle bearings, angular contact bearings, and super-precision bearings for CNC and robotics.
Application Design
EngineeringOur engineers analyze your operating conditions -- load, speed, temperature, environment -- and select or design the optimal bearing solution to maximize service life and reduce total cost of ownership.
Custom Modification
7-Day TurnaroundNeed non-standard dimensions, special materials, or modified clearances? We can modify standard SKF bearings or manufacture fully custom solutions with a 7-day prototype turnaround.
Failure Analysis
DiagnosticsWhen bearings fail prematurely, our team conducts root-cause analysis using advanced diagnostic tools to identify the failure mode and recommend corrective action.
Predictive Maintenance
Up to 40% Less DowntimeWe deploy vibration monitoring, thermal imaging, and oil analysis programs that detect bearing deterioration early -- reducing unplanned downtime by up to 40%.
On-site Installation
Global CoverageProper installation is critical to bearing performance. Our certified technicians provide on-site installation support, alignment verification, and operator training worldwide.
Lifecycle Support
Enterprise SLAFrom initial selection through end-of-life, our dedicated account managers provide scheduled maintenance plans, re-lubrication programs, and replacement forecasting for enterprise clients.
Why SKF China
The engineering partner advantage
7 Days
Prototype Lead Time
vs. 8-12 weeks via standard channels
15+
Certified Engineers
SKF-certified, on-call for your project
50+
Countries Delivered
Reliable global logistics network
Request a Quote
Get a custom quote for
Bdl Needle Roller Bearing Rna6918 Rna6919 Rna6920 High Quality
NDA protected · Free samples for orders > $50K · Reply within 12 hours
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