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À prova de poeira <p> 6310 Rolamento de esferas de sulco profundo 50x110x27mm para caixa de engrenagens de equipamentos de construção thumbnail 1
À prova de poeira <p> 6310 Rolamento de esferas de sulco profundo 50x110x27mm para caixa de engrenagens de equipamentos de construção - Side View thumbnail 2
À prova de poeira <p> 6310 Rolamento de esferas de sulco profundo 50x110x27mm para caixa de engrenagens de equipamentos de construção - Detail thumbnail 3
À prova de poeira <p> 6310 Rolamento de esferas de sulco profundo 50x110x27mm para caixa de engrenagens de equipamentos de construção - Dimension thumbnail 4
NTN GENUINE
IN STOCK
À prova de poeira <p> 6310 Rolamento de esferas de sulco profundo 50x110x27mm para caixa de engrenagens de equipamentos de construção
À prova de poeira <p> 6310 Rolamento de esferas de sulco profundo 50x110x27mm para caixa de engrenagens de equipamentos de construção - Side View
À prova de poeira <p> 6310 Rolamento de esferas de sulco profundo 50x110x27mm para caixa de engrenagens de equipamentos de construção - Detail
À prova de poeira <p> 6310 Rolamento de esferas de sulco profundo 50x110x27mm para caixa de engrenagens de equipamentos de construção - Dimension
Model
6310
Origin
JAPAN
Lead Time
5-7 DAYS
NTN AUTHORIZED · OEM SUPPLIER

À prova de poeira <p> 6310 Rolamento de esferas de sulco profundo 50x110x27mm para caixa de engrenagens de equipamentos de construção

MODEL: 6310 100% Genuine · Traceable

Ensure uninterrupted operation of your construction equipment gearbox with the NTN 6310 deep groove ball bearing, engineered to deliver exceptional dust resistance in harsh job site conditions. This 50x110x27mm Japanese-manufactured bearing maintains consistent performance under heavy loads, minimizing unplanned downtime and keeping your machinery running at peak efficiency. Precision-crafted from high-grade bearing steel with grease lubrication for extended service life in gearbox applications Direct from authorized NTN distributor—complete traceability documentation ensures compliance and eliminates counterfeit risks Customizable options available to match specific equipment requirements, backed by 10+ years of technical support expertise

Key Specifications
SPEC-01
Bore (d)
50mm
OD (D)
110mm
Width (B)
27mm
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)50 mm
Outer Diameter (D)110 mm
Width (B)27 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 uninterrupted operation of your construction equipment gearbox with the NTN 6310 deep groove ball bearing, engineered to deliver exceptional dust resistance in harsh job site conditions. This 50x110x27mm Japanese-manufactured bearing maintains consistent performance under heavy loads, minimizing unplanned downtime and keeping your machinery running at peak efficiency.

  • Precision-crafted from high-grade bearing steel with grease lubrication for extended service life in gearbox applications
  • Direct from authorized NTN distributor—complete traceability documentation ensures compliance and eliminates counterfeit risks
  • Customizable options available to match specific equipment requirements, backed by 10+ years of technical support expertise

Description

Especificações do Produto

Parâmetro

Detalhes

Modelo Nº

6310

Tipo

Rolamento de Esferas de Sulco Profundo

Diâmetro do Furo (d)

50mm

Diâmetro Externo (D)

110mm

Largura (B)

27mm

Material

Aço para Rolamentos

Tipo de Selo

À prova de poeira

Lubrificação

Graxa ou Óleo

Marca

Origem

Japão

Código HS

8482300000

NTN

Indústrias de Aplicação

Indústria

Equipamento Típico

Construção

Escavadeiras, Carregadeiras, Bulldozers, Caixas de Câmbio

Automotivo

Transmissões, Ventiladores, Motores

Máquinas Gerais

Redutores Industriais, Bombas, Transportadores

Pare os Atrasos na Construção com Confiáveis

    6310 Rolamentos de Esferas de Sulco Profundo

    Caixas de engrenagens de equipamentos de construção enfrentam poeira implacável, vibração e cargas pesadas — no entanto, muitas operações ainda dependem de fontes de rolamentos incertas. Rolamentos falsificados frequentemente falham prematuramente, causando paradas inesperadas que custam entre US$ 2.000 e US$ 5.000 por hora em produtividade perdida. Canais de distribuição em múltiplas camadas aumentam os prazos de entrega em 30–50%, deixando equipes de manutenção esperando enquanto as máquinas ficam paradas.

    Genuínos

      6310 Rolamentos: Em Estoque e Prontos para Sua Caixa de Engrenagens

      Como um oficial

        distribuidor, oferecemos o à prova de poeira
      • 6310 rolamento de esferas de sulco profundo (50x110x27mm) com rastreabilidade total e disponibilidade imediata. Este rolamento combina a precisão japonesa com um design de vedação à prova de poeira, tornando-o ideal para caixas de engrenagens de equipamentos de construção onde o controle de contaminação é crítico. Nosso sistema WMS rastreia o inventário em tempo real, garantindo que podemos atender pedidos tanto para reparos de emergência quanto para necessidades de produção em massa sem atrasos.

        Projetado para Desafios de Caixa de Engrenagens de Construção

        The NTN 6310 bearing thrives in the harsh conditions of construction machinery. Its deep groove design accommodates radial and axial loads simultaneously, while the dustproof seal prevents abrasive particles from entering—extending service life by up to 40% compared to standard bearings in dusty environments. Whether powering an excavator’s swing gearbox or a loader’s transmission, this bearing maintains consistent performance under high torque and variable speed operations.

        Detalhes Técnicos que Maximizam o Desempenho da Caixa de Engrenagens

        The 50x110x27mm dimensions of the NTN 6310 bearing ensure precise fit in standard construction gearboxes, eliminating the need for custom modifications. Crafted from high-grade bearing steel, it delivers exceptional hardness and wear resistance—critical for withstanding the shock loads common in off-road applications. The grease or oil lubrication flexibility allows adaptation to specific operating temperatures, while the bearing’s structural integrity ensures reliable power transmission even in continuous-duty cycles.

        Por que Rolamentos Genuínos Reduzem o Custo Total de Propriedade

        Escolher rolamentos

          6310 autênticos em vez de alternativas do mercado cinza reduz os custos de longo prazo. Rolamentos falsificados geralmente falham em 3 a 6 meses, exigindo substituições repetidas e manutenção não planejada. Em contraste, rolamentos genuínos
        • oferecem vida útil previsível, reduzindo o tempo de inatividade e os custos de mão de obra. Nossa inspeção de três níveis em conformidade com a ISO 9001 garante que cada rolamento atenda aos padrões OEM, eliminando o risco de falha prematura que poderia danificar componentes caros do redutor.

          Seu Parceiro de Confiança para Rolamentos de Construção

          Com mais de 10 anos atendendo à indústria da construção em mais de 50 países, trazemos expertise comprovada para cada pedido. Como distribuidor oficial

            , cada rolamento vem com documentação de rastreabilidade completa, incluindo códigos de lote e certificados de origem. Nossa equipe técnica oferece suporte gratuito de seleção de modelos, garantindo que você obtenha o rolamento correto para as especificações do seu redutor. Mantemos um estoque dedicado para modelos de alta demanda como o 6310, oferecendo logística global porta a porta com rastreamento em tempo real.

          Packaging & Shipping

            Embalagem original

              com proteção individual por caixa e etiquetas antifalsificação

              Caixa externa e palete reforçados para transporte seguro

              Tamanho da embalagem: 7.00cm * 13.00cm * 5.00cm

              Peso bruto da embalagem: 1.100kg

              Entrega em 3–7 dias úteis para pedidos em estoque

              Envio flexível via DHL, FedEx, UPS, frete aéreo ou marítimo

              Quantidade mínima de pedido de 1 peça suportada

            Obtenha seu

              6310 Bearing Hoje

              Não deixe que problemas com rolamentos interrompam seus projetos de construção. Envie-nos o modelo do seu redutor, a quantidade necessária e o local de entrega — nossa equipe fornecerá um orçamento formal com certificados de rastreabilidade em até 24 horas. Com nossa disponibilidade em estoque, você pode minimizar o tempo de inatividade e manter seus equipamentos operando com máxima eficiência.

              Perguntas Frequentes

              Q: Estes são rolamentos genuínos ?

              R: Sim, somos um distribuidor autorizado oficial da

                . Cada rolamento
              • 6310 vem com documentação completa de rastreabilidade e certificados de autorização da marca.

              P: Como confirmo se este rolamento se encaixa na minha caixa de engrenagens?

              R: Forneça o modelo do seu equipamento ou as especificações da caixa de engrenagens, e nossa equipe técnica verificará a compatibilidade com o rolamento 6310 de 50x110x27mm

                sem custos.

              P: Qual é a sua política de garantia?

              A: All bearings come with NTN’s original manufacturer warranty. We offer unconditional replacement for any manufacturing defects.

              P: Qual é a quantidade mínima do pedido?

              A: Aceitamos pedidos a partir de 1 peça, atendendo tanto a reparos emergenciais quanto a compras em grandes quantidades.

              P: Quanto tempo leva a entrega?

              R: Rolamentos

                6310 em estoque são entregues em 3 a 7 dias úteis através do seu método logístico preferido (DHL, FedEx, UPS, frete aéreo ou marítimo).

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

              A: Each bearing includes NTN’s original packaging with anti-counterfeit labels. We also provide full traceability documents and can assist with verification through NTN’s official channels.

              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
6310?

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
FORM · INQUIRY-6310 SECURE SSL

By submitting, you agree to NTN OEM processing your contact details for quotation purposes only. We never share information with third parties.

NTN AUTHORIZED DISTRIBUTOR / OEM · Wholesale · Global Logistics
ISO 9001:2015 · JIS B 1518