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NTN GENUINE
IN STOCK
<p> Rolamentos de Rolos Cônicos 30234 30336 para Maquinário Automotivo de Alta Velocidade
<p> Rolamentos de Rolos Cônicos 30234 30336 para Maquinário Automotivo de Alta Velocidade - Side View
<p> Rolamentos de Rolos Cônicos 30234 30336 para Maquinário Automotivo de Alta Velocidade - Detail
<p> Rolamentos de Rolos Cônicos 30234 30336 para Maquinário Automotivo de Alta Velocidade - Dimension
Model
30234
Origin
JAPAN
Lead Time
5-7 DAYS
NTN AUTHORIZED · OEM SUPPLIER

<p> Rolamentos de Rolos Cônicos 30234 30336 para Maquinário Automotivo de Alta Velocidade

MODEL: 30234 100% Genuine · Traceable

Boost your automotive machinery's performance with NTN Tapered Roller Bearings designed for high-speed applications. These precision-engineered 30234 and 30336 models deliver long life, low noise, and reliable operation—critical for keeping production lines running smoothly without unexpected downtime.Japanese-manufactured with P0-P2 precision ratings and Z1V1-Z3V3 vibration control, ensuring consistent batch quality for OEM assembly170×310×57mm specification (30234) optimized for heavy-load automotive transmissions and machinery gearboxesBacked by Dunyu Bearings' ISO 9001 quality system and full traceability documentation, streamlining global logistics and compliance

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 TypeTapered Roller 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

Boost your automotive machinery’s performance with NTN Tapered Roller Bearings designed for high-speed applications. These precision-engineered 30234 and 30336 models deliver long life, low noise, and reliable operation—critical for keeping production lines running smoothly without unexpected downtime.

  • Japanese-manufactured with P0-P2 precision ratings and Z1V1-Z3V3 vibration control, ensuring consistent batch quality for OEM assembly
  • 170×310×57mm specification (30234) optimized for heavy-load automotive transmissions and machinery gearboxes
  • Backed by Dunyu Bearings’ ISO 9001 quality system and full traceability documentation, streamlining global logistics and compliance

Description

Especificações do Produto

Parâmetro

Detalhes

Modelo Nº

30234

Classificação de Precisão

P0, P6, P5, P4, P2

Vibração

,

,

Característica

Vida Longa, Alta Velocidade, Baixo Ruído

Especificação

170*310*57 mm

Marca

Origem

Japão

Código HS

8482200000

NTN

Indústrias de Aplicação

Indústria

Equipamento Típico

Automotivo

Transmissões, Diferenciais, Sistemas de Eixo

Máquinas Gerais

Caixas de engrenagens, Bombas, Compressores, Transportadores

Pare os Atrasos na Produção com Rolamentos Cônicos Originais 30234

Para fabricantes automotivos e de máquinas, nada interrompe a produção mais rapidamente do que a falha de rolamentos. Fornecedores do mercado cinza frequentemente entregam rolamentos cônicos falsificados que carecem de tratamento térmico adequado, levando ao desgaste prematuro e paradas inesperadas. Canais de distribuição em múltiplas camadas agravam o problema, estendendo os prazos de entrega em 30-50% e tornando quase impossível alinhar-se com cronogramas apertados de produção.

30234 Rolamentos de Rolos Cônicos: Em Estoque e Rastreáveis

Como um distribuidor oficial , eliminamos esses pontos problemáticos com acesso direto a genuínos

rolamentos de rolos cônicos. Nosso sistema de inventário em tempo real WMS garante que o modelo 30234 — com suas dimensões de 170x310x57 mm — esteja disponível para envio imediato. Cada unidade vem com documentação completa de rastreabilidade, do lote de fabricação até a entrega, garantindo conformidade com os padrões de qualidade OEM automotivos e simplificando a liberação alfandegária para remessas globais.

Projetado para aplicações automotivas e de maquinário de alta velocidade

O 30234 Rolamento de Rolos Cônicos se destaca em ambientes rotacionais de alta velocidade, tornando-o ideal para transmissões automotivas e caixas de engrenagens de máquinas pesadas. Seu design de precisão lida eficientemente com cargas radiais e axiais, enquanto a construção de baixo ruído minimiza a vibração operacional. Seja seu equipamento operando em linhas de produção contínuas ou condições de carga variável, este rolamento oferece desempenho consistente sob circunstâncias exigentes.

Excelência Técnica que Gera Confiabilidade

Three critical specifications define the 30234’s performance capabilities. Its precision ratings (from P0 to P2) ensure tight dimensional tolerance, reducing runout in high-precision applications like automotive powertrains. Vibration classes Z1V1 to Z3V3 allow customization based on noise sensitivity—critical for passenger vehicle transmissions. The bearing’s 57 mm width provides optimal load distribution, extending service life in heavy machinery applications where durability directly impacts maintenance costs.

Por que Autênticos Rolamentos Reduzem Custos Totais

Choosing genuine NTN Tapered Roller Bearings over counterfeit alternatives eliminates hidden expenses. Counterfeit bearings often fail within 30-50% of the expected service life, leading to emergency repairs, production downtime, and potential damage to adjacent components. Our ISO 9001 compliant three-level inspection system ensures every 30234 bearing meets NTN’s strict quality standards, delivering predictable performance that reduces long-term operational costs.

Seu Parceiro de Confiança para Fornecimento de Rolamentos OEM

Com mais de 10 anos de expertise técnica e atendimento em mais de 50 países, garantimos a qualidade de cada rolamento que fornecemos. Nossa cadeia de suprimentos autorizada assegura produtos 100% genuínos, enquanto nossa equipe técnica dedicada oferece orientação específica para a aplicação – desde a seleção do modelo até as melhores práticas de instalação. Apoiamos customização OEM flexível e oferecemos reserva de estoque dedicada para parcerias de produção de longo prazo, garantindo fornecimento estável mesmo em períodos de pico de demanda.

Packaging & Shipping

  • Carton and pallet packaging with NTN’s original branding and anti-counterfeit labels
  • Dimensões da embalagem: 33.00cm * 33.00cm * 7.20cm (peso bruto: 16.700kg)

    Logística global porta a porta via DHL, FedEx, UPS, frete aéreo ou marítimo

    Rastreamento de remessas em tempo real e suporte à documentação de exportação

    Quantidades flexíveis de pedido, incluindo testes de pequenos lotes e corridas de produção em grande escala

Receba Seus Rolamentos 30234 Enviados Hoje

Don’t let bearing issues disrupt your production schedule. Send us your order details—including quantity and application requirements—and we’ll issue a formal quotation with traceability certificates within 24 hours. Our rich stock ensures prompt delivery, helping you minimize downtime and maintain manufacturing continuity.

Perguntas Frequentes

Q: Estes são rolamentos genuínos ?

A: Sim, somos um distribuidor oficial . Cada rolamento vem com documentação completa de rastreabilidade e certificados de autorização da marca.

P: Como posso confirmar se o 30234 é adequado para o 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: All NTN bearings are covered by the manufacturer’s warranty. We provide full support for claims related to manufacturing defects.

P: Qual é a quantidade mínima do pedido?

A: Aceitamos pedidos a partir de 1 unidade, atendendo tanto a reparos de emergência quanto a necessidades de produção em larga escala.

P: Com que rapidez vocês podem enviar?

A: In-stock items are dispatched within 3-7 business days. Custom orders follow NTN’s standard production lead times.

P: Como verificar a autenticidade do rolamento?

A: Check for NTN’s holographic labels, laser-etched part numbers, and scan the QR code for batch verification. We provide full traceability reports 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
30234?

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-30234 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