-- SKF Authorized Engineering Partner
Rnav4922-4930 High Precision Needle Roller Bearings Factory Supply
Ensure smooth, precise machinery operation with our High Precision Needle Roller Bearings, engineered to minimize friction and maximize load capacity for critical applications. Available in models W639/3-2RS1, W639/2-2Z, and W639-2Z (2*6*3mm specification), these bearings deliver consistent performance with Z1V1-Z3V3 vibration control and flexible lubrication options (grease or oil).
- Rich stock ensures 100% on-time delivery, eliminating production delays when you need replacements fast
- OEM/ODM services available to tailor specifications to your exact equipment requirements
- Sample testing supported to verify fit and function before full order placement
- Product Name
- Rnav4922-4930 High Precision Needle Roller Bearings Factory Supply
- Category
- Deep Groove Ball Bearing
- Quality Standard
- ISO 9001 / TS 16949
- Lead Time
- 8-12 Weeks Custom
- Minimum Order
- Negotiable
15+ Certified Engineers On-Call
Free application analysis · Failure diagnosis · Custom modification guidance. Response within 24 hours.
Especificações do Produto
Parâmetro
Detalhes
Número do Modelo
Especificação
Estoque
Ações Ricas
Tecnologia de graxas
Alto
Lubrificação
Graxas ou Óleo
Vibração
, Serviço
OEM, ODM
Entrega
por correio expresso, rodoviário, ferroviário, aéreo, marítimo
Amostra
Disponível
Taxa de entrega dentro do prazo
100,0%
Tempo de resposta
Menos de 0,5 h
Pacote de transporte
Palete de papelão
Marca Registrada
BDL/ Origem
China
Código HS
8482102000
Capacidade de produção
20.000.000 unidades/ano
Adequação da Aplicação
Indústria
Aplicações Típicas
Equipamentos de automação
Automotivo
Maquinário industrial
Finding the right needle roller bearings for your equipment can be frustrating. Mismatched dimensions lead to installation delays, while low-quality bearings fail prematurely, causing costly downtime. With so many brands and型号 on the market, sourcing multiple types often means juggling multiple suppliers and inconsistent lead times. Projetado para oferecer desempenho consistente em aplicações exigentes
Our Rnav4922-4930 high precision needle roller bearings address these challenges directly. As a专业轴承供应商 with extensive experience, we maintain rich stocks of W639 series models like W639/3-2RS1, W639/2-2Z, and W639-2Z, ensuring you get the exact规格 you need without delays. Whether for automation equipment guides or automotive mechanisms, these bearings deliver reliable performance where precision matters most. This needle roller bearing series excels in applications with limited radial space, thanks to its compact 2*6*3mm design. The high grease technology ensures effective lubrication under varying loads, while vibration grades Z1V1 to Z3V3 accommodate different precision needs—from general industrial use to more sensitive equipment. Proper lubrication (grease or oil) selection directly impacts bearing life, making this versatility a key advantage in diverse operating conditions. Several critical specifications contribute to the performance of these needle roller bearings. The vibration class (Z1V1 to Z3V3) indicates the bearing’s balance quality; higher grades like Z3V3 reduce noise and vibration in precision machinery. The lubrication flexibility (grease or oil) allows adaptation to operating temperatures and speeds—grease for lower maintenance, oil for high-speed applications. Additionally, the 2*6*3mm dimension ensures interchangeability with major international standards, simplifying replacement and reducing inventory complexity. Por que rolamentos de qualidade reduzem o custo total de propriedade
Choosing substandard needle roller bearings may seem cost-effective initially, but the hidden expenses add up. Early wear from poor material quality leads to frequent replacements and unplanned downtime. Our bearings, manufactured under rigorous quality control, minimize these risks. With ISO 9001-compliant production processes, each unit undergoes strict dimensional and hardness testing, ensuring it meets the performance requirements of your application. This reliability translates to longer service intervals and lower overall maintenance costs. Qualidade em que você pode confiar: da produção à entrega
Our commitment to quality starts with raw material inspection and continues through every stage of manufacturing. All bearings follow ISO 9001-certified production and检验流程, with成品尺寸, hardness, and表面处理检测 before shipment. We stand behind our products with a质保期, covering manufacturing defects for your peace of mind. With a comprehensive network of suppliers, we offer both自有品牌 and international brand options, ensuring you get bearings that match your specific standards and requirements. Quantidade mínima de pedido baixa suportada, ideal tanto para reparos em pequena escala quanto para grandes produções
Whether you need W639/3-2RS1, W639/2-2Z, W639-2Z, or other needle roller bearings, we’re here to help. Contact us with your required model, quantity, and delivery location, and our team will respond within 0.5h with pricing and availability. With our 100% on-time delivery rate, you can count on receiving your order when you need it. Perguntas frequentes
P: Vocês fornecem rolamentos de outras marcas ou modelos?
A: Yes, we support inquiries for all bearing brands and型号. We can source according to your specified brand, dimensions, or performance requirements. P: Como posso verificar se este rolamento é compatível com o meu equipamento?
A: Provide your equipment’s required bearing dimensions (d x D x B), model number, or application details. Our technical team will verify compatibility with the W639 series specifications. Q: What is your质保政策 for these bearings? A: We provide a质保期 covering manufacturing defects. Specific terms are outlined in the sales contract, and defective products can be replaced or returned within the warranty period. Q: Qual é a quantidade mínima de pedido?
A: We offer low minimum order quantities, supporting small batch purchases for testing or maintenance, as well as large-volume orders for production. Q: Quanto tempo leva o envio e quais métodos estão disponíveis?
A: With rich stocks, we ship immediately. Shipping time depends on the method: Express (1-3 days), Air (3-7 days), Sea (20-40 days), Road, or Train. We’ll recommend the best option based on your location. Q: Do you offer OEM/ODM定制 services? A: Yes, we support OEM and ODM定制. Provide your drawings, specifications, or performance requirements, and we can manufacture bearings tailored to your needs. Ready to order or need a quote?
W639/3-2RS1, W639/2-2Z, W639-2Z
2*6*3mm
/
Precision linear guides, small motor assemblies
Instrument panels, door mechanisms
Conveyor systems, small gearboxes
Need Reliable W639 Series Needle Roller Bearings? Avoid Common Sourcing Headaches
Optimal Performance in Tight Spaces and High-Rigidity Requirements
Key Engineering Features That Enhance Reliability
Packaging & Shipping
Get Your W639 Series Bearing Quote Today
Send the bearing model, dimensions (d x D x B), and quantity — we’ll get back to you with pricing and lead time.
Contact us now
Wind Power
Main shaft, gearbox, and generator bearings for onshore and offshore wind turbines. Engineered for 20+ year service life.
Mining & Heavy Industry
Crushers, conveyors, and processing equipment bearings designed to withstand shock loads and contaminated environments.
Steel & Metallurgy
Rolling mill and continuous casting bearings rated for extreme temperatures, heavy loads, and aggressive lubricants.
Automotive & EV
Hub units, transmission, and electric motor bearings meeting TS 16949 requirements for passenger and commercial vehicles.
Precision Machinery
Machine tool spindle and robotics bearings with P4/P2 accuracy class for ultra-precise positioning and minimal vibration.
General Industrial
Pumps, fans, compressors, and conveyor systems across all manufacturing sectors requiring reliable, cost-effective bearing solutions.
Authorized SKF Engineering Partner
Official partner since 1998 with direct access to SKF technical resources, genuine products, and engineering expertise.
15+ Certified Engineers On-Staff
In-house team provides application design, failure analysis, and predictive maintenance -- reducing bearing failures by 35%.
ISO 9001 & TS 16949 Certified QC
Every product undergoes rigorous pre-shipment inspection with full documentation for traceability and compliance.
Global Logistics to 50+ Countries
Dedicated account managers and reliable delivery networks ensure on-time supply for enterprise clients worldwide.
Performance Metrics
35%
Failures Prevented
70%
Downtime Reduction
25+
Years Experience
24h
Quote Response
78% of large enterprises prefer suppliers offering integrated technical support and lifecycle services.
Application Design
EngineeringCustom bearing selection and system design based on your specific load conditions, speeds, temperatures, and environmental factors.
Failure Analysis
DiagnosticsRoot-cause investigation of bearing failures using metallurgical testing, vibration analysis, and operating data review.
Predictive Maintenance
IIoTIIoT-enabled monitoring with smart sensor bearings for real-time vibration, temperature, and RPM tracking.
Custom Modification
CustomModified bearings with special coatings, seals, tolerances, or materials. Lead time 8-12 weeks from official channels.
On-Site Installation
SupportCertified engineers available for on-site installation support, alignment checks, and commissioning assistance worldwide.
Lifecycle Support
LifecycleLong-term service agreements including regular maintenance checks, replacement scheduling, and performance reporting.
Free samples available for orders over $50K
Validated against your KPIs before full production commitment.
-- Get In Touch
Request a Technical Consultation & Quote
Our certified engineers will review your application requirements and provide a detailed quote within 24 hours.
Address
No. 377 Bansongyuan Road, Huangpu District, Shanghai, China
Free Sample Program
Orders over $50K qualify for free product samples
Test against your KPIs before full production commitment. Ask our engineers for details.
Product Inquiry Form
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SKF Authorized Engineering Partner
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