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NTN GENUINE
IN STOCK
High Precision NTN 6308LLUC3 Deep Groove Ball Bearing for Pumps & Fans with Fast Delivery
High Precision NTN 6308LLUC3 Deep Groove Ball Bearing for Pumps & Fans with Fast Delivery - Side View
High Precision NTN 6308LLUC3 Deep Groove Ball Bearing for Pumps & Fans with Fast Delivery - Detail
High Precision NTN 6308LLUC3 Deep Groove Ball Bearing for Pumps & Fans with Fast Delivery - Dimension
Model
6308LLUC3
Origin
JAPAN
Lead Time
5-7 DAYS
NTN AUTHORIZED · OEM SUPPLIER

High Precision NTN 6308LLUC3 Deep Groove Ball Bearing for Pumps & Fans with Fast Delivery

MODEL: 6308LLUC3 100% Genuine · Traceable

Ensure smooth, high-precision operation for your pumps and fans with the NTN 6308LLUC3 deep groove ball bearing—engineered to minimize downtime and maintain consistent performance in industrial environments. This 40*90*23mm bearing, crafted from premium bearing steel, delivers reliable lubrication options (grease or oil) to adapt to your specific working conditions, while its Japan-sourced NTN quality ensures traceable authenticity that eliminates compliance hurdles.Precision-engineered for pumps and fans, reducing vibration and extending equipment lifespanCustomizable OEM service available to align with your production requirementsFast delivery supported by WMS real-time inventory for seamless integration with your scheduling

Key Specifications
SPEC-01
Bore (d)
75mm
OD (D)
130mm
Width (B)
31mm
Dyn. Load Cr
183 kN
Stat. Load C0
220 kN
Lim. Speed
3,800 rpm
Request Quotation Now
24H
Quote Reply
5-7D
Sample Ship
100%
Genuine
SECTION 05 / FULL SPECIFICATIONS

Complete Technical Parameters

All specifications strictly follow NTN factory standards. Data verified against original NTN catalogue with full ISO 9001 compliance.

Dimensions DIM
Bore Diameter (d)75 mm
Outer Diameter (D)130 mm
Width (B)31 mm
Chamfer (rs min)2.1 mm
Net Weight1.85 kg
Performance PERF
Dynamic Load Rating (Cr)183 kN
Static Load Rating (C0r)220 kN
Limiting Speed (Grease)3,800 rpm
Limiting Speed (Oil)5,000 rpm
Fatigue Load Limit (Pu)23.6 kN
Construction CONST
Bearing TypeDeep Groove Ball Bearing
Cage MaterialPressed Steel
Sealing TypeOpen / 2RS / ZZ
Internal ClearanceCN / C3 / C4
Tolerance ClassP0 / P6 / P5
Operating Conditions OP
Temperature Range-30°C ~ +120°C
LubricationGrease / Oil
Vibration ClassZ2 / Z3 / Z4
StandardJIS B 1518 / ISO 281
OriginJapan (NTN Factory)
SECTION 06 / INDUSTRY APPLICATIONS

Compatible Equipment & Industries

Validated by 2,400+ OEM customers across 50+ countries. Engineered for high-reliability operation in demanding industrial environments.

01

Steel Mills

Heavy-duty rolling mills, continuous casters, hot strip mills with shock-absorbed design.

02

Mining Equipment

Crushers, vibrating screens, conveyors operating under extreme loads and contamination.

03

Paper Machines

Drying cylinders, calenders, press rolls requiring vibration damping.

04

Conveyor Systems

Belt conveyors, idlers, drive pulleys for ports, logistics and manufacturing lines.

05

Cement & Aggregate

Vibrating equipment, crushers, kilns demanding misalignment tolerance.

06

Wind Power

Main shaft, gearbox, generator bearings for onshore and offshore turbines.

07

Petrochemical

Pumps, compressors, blowers in chemical processing and refining plants.

08

Construction Machinery

Excavators, cranes, loaders, drilling rigs working under impact loads.

09

Marine & Offshore

Propulsion shafts, deck machinery, anti-corrosion sealed for marine environment.

SECTION 07 / ENGINEERING DEEP DIVE

Why NTN Outperforms in Critical Applications

From raceway geometry to surface micro-finish, every parameter is engineered for L10 life extension and consistent batch performance.

MATERIAL

Premium Carburized Steel

High-purity SUJ2 / 100Cr6 bearing steel with vacuum degassing. Carburized case depth precisely controlled at 2.5-3.5mm with HRC 60-62 surface hardness.

  • Oxygen content ≤ 8 ppm -- minimizes inclusion-induced fatigue cracks
  • Compressive residual stress on raceway surface for crack resistance
  • 40% L10 life improvement vs. industry standard steel
SEALING

Multi-Lip NBR / FKM Seals

Choice of contact (2RS), non-contact (2Z) and metal shielded (ZZ) options. Designed for IP65 dust ingress protection and grease retention.

  • NBR rated -40°C ~ +120°C / FKM rated up to +200°C
  • Garter spring tension calibrated for low torque & long sealing life
  • Customizable food-grade FDA compliant variants available
PRECISION

P0 to P5 Tolerance Class

Precision grades from standard P0 up to P5 (ISO Class 5) for high-speed spindle applications. Inspected on Mahr / Talyrond CMM equipment.

  • Bore tolerance ±2μm (P5) / Radial runout ≤ 4μm
  • Raceway roundness controlled within 0.8μm
  • Vibration class Z2/Z3/Z4 for low-noise applications
CLEARANCE

CN / C3 / C4 Internal Clearance

Internal radial clearance optimized per application -- CN for general use, C3 for thermal expansion, C4 for high-temperature environments.

  • Optimized load distribution under interference fits
  • Thermal expansion accommodation up to ΔT 80°C
  • Custom clearance ranges available for OEM specifications
SECTION 08 / TRUST & TRACEABILITY

100% Genuine NTN.
Traceable. Warranted.

We operate as an officially authorized NTN distributor with an unbroken supply chain. Every bearing carries laser-engraved batch codes that can be verified against NTN's factory database.

Authorized Distributor

Direct sourcing from NTN factories with original brand authorization certificate.

Laser Batch Code

Every bearing engraved with traceable batch ID. Verifiable via NTN factory MES system.

Full Documentation

Mill test certificates, COO, COC, packing list -- all export documents provided.

12-Month Warranty

Standard 12-month quality warranty. Free replacement for verified manufacturing defects.

2,400+
OEM Customers
50+
Countries Served
99.97%
QC Pass Rate
10+
Years Experience
SECTION 09 / PACKAGING & SHIPPING

Export-Ready Packaging, Worldwide Door-to-Door Delivery

Real-time WMS inventory ensures rapid dispatch. Standard NTN moisture-proof packaging with anti-rust treatment for long-term storage.

NTN original packaging with moisture protection
PACKAGING

Original NTN Packaging

  • Inner: NTN-printed plastic tube + VCI anti-rust paper
  • Middle: Original NTN branded carton with batch label
  • Outer: Reinforced export carton, optional wooden pallet
  • Custom: Neutral packaging or customer branding available
Global shipping logistics hub
LOGISTICS

Global Shipping Options

EXPRESS
DHL · FedEx · UPS
3-7 days door-to-door
AIR FREIGHT
Bulk Air Cargo
5-10 days port-to-port
SEA FREIGHT
FCL · LCL
15-35 days, lowest cost
RAIL
CN-EU Express
18-22 days to Europe
EXW · FOB · CIF · DDP -- flexible Incoterms supported
SECTION 11 / FAQ

Frequently Asked
Questions

Common questions from OEM and distributor partners. Can't find an answer? Contact our engineering team directly.

Ask a custom question
Q.01 How can I verify the authenticity of NTN bearings I receive?

Every NTN bearing has laser-engraved batch codes on the inner ring. We provide the original mill test certificate and brand authorization letter with each shipment. You can verify the batch code with NTN factory directly via their official channels.

Q.02 What is the typical lead time and minimum order quantity?

In-stock items ship within 5-7 working days. MOQ starts from 1 piece for samples. Bulk orders for OEM customers benefit from priority production scheduling and consolidated shipping. Custom non-standard bearings typically take 30-45 days.

Q.03 Do you offer OEM customization (clearance, sealing, precision)?

Yes. We support custom internal clearance (CN/C3/C4/C5), sealing options (2RS/ZZ/Open), precision class (P0/P6/P5), special grease, and neutral packaging. Submit your engineering drawing and we will return a feasibility report within 72 hours.

Q.04 What documentation is provided for international shipping?

Standard export documents include: Commercial Invoice, Packing List, Bill of Lading / Air Waybill, Certificate of Origin (Form A / E / FTA), Certificate of Conformity, NTN Mill Test Certificate, and Brand Authorization Letter. Customs HS code and country-specific requirements are pre-checked.

Q.05 What is your warranty and return policy?

We offer a standard 12-month quality warranty from shipping date for verified manufacturing defects. Defective products are replaced free of charge. Failure analysis reports are provided to support root cause investigation. Wear due to misapplication or improper installation is excluded.

Q.06 Can you ship under DDP terms to my country?

Yes. We support EXW, FOB, CIF, CFR, and DDP terms. Our logistics team handles customs clearance, duties, and last-mile delivery for DDP shipments to 50+ countries. For sensitive markets, we recommend DDP to avoid customs delays.

PRODUCT DESCRIPTION

Detailed Product Information

Ensure smooth, high-precision operation for your pumps and fans with the NTN 6308LLUC3 deep groove ball bearing—engineered to minimize downtime and maintain consistent performance in industrial environments. This 40*90*23mm bearing, crafted from premium bearing steel, delivers reliable lubrication options (grease or oil) to adapt to your specific working conditions, while its Japan-sourced NTN quality ensures traceable authenticity that eliminates compliance hurdles.

  • Precision-engineered for pumps and fans, reducing vibration and extending equipment lifespan
  • Customizable OEM service available to align with your production requirements
  • Fast delivery supported by WMS real-time inventory for seamless integration with your scheduling

Description

Especificações do Produto

Parâmetro

Detalhes

Modelo Nº

6308LLUC3

Tipo de Rolamento

Rolamento de Esferas de Sulco Profundo

Especificação

40*90*23mm

Material

Aço para Rolamentos

Lubrificação

Graxa ou Óleo

Marca

Origem

Japão

Código HS

8482300000

Personalizável

Sim

Amostra

Disponível

Serviço

OEM ODM

NTN

Indústrias de Aplicação

Indústria

Equipamento Típico

Máquinas Industriais

Bombas, Ventiladores, Caixas de Engrenagens

Automotivo

Componentes de Carro

Evite paradas não programadas com Rolamentos Originais 6308LLUC3 Rolamentos

Fabricantes OEM sabem o custo de rolamentos falsificados—falhas prematuras em bombas e ventiladores levam a paradas de linha de produção, despesas de manutenção emergenciais e prazos de entrega perdidos. Quando distribuidores de múltiplos níveis estendem os prazos de entrega em 30-50%, alinhar-se com os cronogramas de produção se torna uma batalha constante.

Rolamentos Genuine 6308LLUC3: Em Estoque e Rastreáveis

Como um distribuidor oficial , resolvemos esses desafios com acesso direto à cadeia de suprimentos. Nosso inventário em tempo real do WMS garante que o rolamento de esferas de sulco profundo

6308LLUC3 — crítico para bombas e ventiladores — esteja pronto para despacho imediato. Cada unidade vem com documentação completa de rastreabilidade, eliminando atrasos na liberação alfandegária e disputas de qualidade.

Projetado para Bombas e Ventiladores: Precisão que Desempenha

O rolamento 6308LLUC3 oferece alta precisão em aplicações rotativas exigentes. Com um diâmetro de furo de 40mm e diâmetro externo de 90mm, ele mantém uma operação estável sob cargas radiais em sistemas de ventilação, bombas d'água e ventiladores industriais. Sua classificação de folga C3 acomoda a expansão térmica, enquanto os selos duplos (LLU) evitam vazamento de graxa e contaminação em ambientes empoeirados.

Detalhes Técnicos que Maximizam o Tempo de Atividade do Equipamento

A construção em aço para rolamentos do 6308LLUC3 garante durabilidade, enquanto sua largura de 23mm proporciona distribuição ideal de carga para operação contínua. A folga radial C3 é especificamente projetada para aplicações com variações de temperatura, reduzindo o atrito e prolongando a vida útil. A fabricação de precisão da garante desempenho consistente entre lotes, essencial para linhas de produção OEM onde a uniformidade dos componentes impacta diretamente na qualidade final do produto.

Por que Genuínos Rolamentos Reduzem Custos Totais

Rolamentos do mercado cinza podem oferecer preços iniciais mais baixos, mas não possuem a qualidade do material e a consistência de fabricação dos produtos genuínos . Uma única falha de um rolamento falsificado em um sistema de ventilador pode custar milhares em tempo de inatividade – superando facilmente qualquer economia inicial. Nossa inspeção de três níveis em conformidade com a ISO 9001 garante que cada rolamento

6308LLUC3 atenda a rigorosos padrões de desempenho, proporcionando vida útil previsível e reduzindo custos de manutenção a longo prazo.

Por que compradores globais escolhem nossos Rolamentos

Com mais de 10 anos atendendo mais de 50 países, construímos uma reputação de confiabilidade. Nossa cadeia de suprimentos autorizada garante produtos 100% genuínos com documentação completa de rastreabilidade. Uma equipe técnica dedicada oferece suporte específico para aplicações, desde a seleção de modelos até a análise de falhas. Nossa rede logística global porta a porta garante entrega no prazo, enquanto a personalização OEM flexível atende a requisitos exclusivos de produção. Mantemos um estoque estratégico para apoiar tanto pedidos OEM em larga escala quanto necessidades de manutenção emergencial.

Packaging & Shipping

    Embalagem original com caixa de papelão e reforço de palete

    Tamanho da embalagem: 6,00cm * 11,00cm * 4,50cm

    Peso Bruto da Embalagem: 0.970kg

    Entrega rápida: itens em estoque são enviados em 3-7 dias úteis

    Opções de logística global: DHL, FedEx, UPS, aéreo e frete marítimo

    Rastreamento em tempo real fornecido para todas as remessas

    Quantidade mínima do pedido: 1 unidade, atendendo tanto às necessidades de manutenção quanto de produção

Obtenha sua Cotação do Rolamento 6308LLUC3 Hoje

Não deixe que problemas com rolamentos interrompam seu cronograma de produção. Envie-nos seus requisitos de modelo, detalhes de aplicação e volume do pedido para um orçamento formal em até 24 horas. Apoiamos testes de amostras e lotes experimentais para garantir compatibilidade antes de pedidos de produção em larga escala.

Perguntas Frequentes

Q: Estes são rolamentos genuínos ?

R: Sim, somos um distribuidor oficial . Cada rolamento vem com autorização da marca e certificados de rastreabilidade para confirmar a autenticidade.

P: Como confirmo se o 6308LLUC3 é adequado para meu equipamento?

A: Forneça o modelo do seu equipamento ou os parâmetros operacionais (carga, velocidade, temperatura), e nossa equipe técnica verificará a compatibilidade sem custos.

P: Qual é a sua política de garantia? A: Oferecemos a garantia padrão do fabricante, cobrindo defeitos de fabricação com substituição incondicional.

P: Qual é a quantidade mínima do pedido?

A: Aceitamos pedidos a partir de 1 unidade, ideal para manutenção de emergência ou necessidades de produção em pequenos lotes.

P: Quanto tempo leva a entrega?

A: Rolamentos em estoque são enviados em 3 a 7 dias úteis. Oferecemos opções de frete DHL, FedEx, UPS, aéreo e marítimo para atender ao seu prazo.

Q: How can I verify the bearing’s authenticity?

A: Each bearing includes NTN’s original packaging with防伪标签, laser marking, and traceability documents. We can also provide official authorization letters upon request.

Ready to order or need a quote?
Send your bearing designation, application details, and quantity — we’ll respond within 24 hours.

SECTION 12 / GET QUOTATION

Ready to Order
6308LLUC3?

Submit your inquiry below. Our senior application engineers will respond within 24 hours with a formal quotation, brand authorization, and traceability certificate.

  • Formal quotation in 24h
  • Sample within 5-7 days
  • 100% genuine guarantee
  • Worldwide DDP shipping
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ISO 9001:2015 · JIS B 1518