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Rolamento Axial de Esferas de Alta Precisão 51220 51320 para OEM de Máquinas com Certificação <p> thumbnail 1
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NTN GENUINE
IN STOCK
Rolamento Axial de Esferas de Alta Precisão 51220 51320 para OEM de Máquinas com Certificação <p>
Rolamento Axial de Esferas de Alta Precisão 51220 51320 para OEM de Máquinas com Certificação <p> - Side View
Rolamento Axial de Esferas de Alta Precisão 51220 51320 para OEM de Máquinas com Certificação <p> - Detail
Rolamento Axial de Esferas de Alta Precisão 51220 51320 para OEM de Máquinas com Certificação <p> - Dimension
Model
51220
Origin
JAPAN
Lead Time
5-7 DAYS
NTN AUTHORIZED · OEM SUPPLIER

Rolamento Axial de Esferas de Alta Precisão 51220 51320 para OEM de Máquinas com Certificação <p>

MODEL: 51220 100% Genuine · Traceable

Ensure your machinery operates with uncompromised precision and reliability using our High-Precision Thrust Ball Bearing 51220/51320, designed to deliver consistent axial load performance in critical OEM applications. As an official NTN distributor with ISO 9001 certification, we guarantee full traceability and batch stability to keep your production line running smoothly without unexpected disruptions.Engineered with P0-P2 precision ratings and separated design for easy installation, this bearing minimizes vibration (Z1V1-Z3V3) and ensures long-term durability in high-load scenarios100*150*38mm specification with bearing steel construction provides the exact fit your machinery demands, backed by our 10+ years technical team for expert选型 supportIn-stock availability and WMS real-time inventory mean you’ll receive orders quickly, eliminating delays that impact your production schedule

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 TypeThrust 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 your machinery operates with uncompromised precision and reliability using our High-Precision Thrust Ball Bearing 51220/51320, designed to deliver consistent axial load performance in critical OEM applications. As an official NTN distributor with ISO 9001 certification, we guarantee full traceability and batch stability to keep your production line running smoothly without unexpected disruptions.

  • Engineered with P0-P2 precision ratings and separated design for easy installation, this bearing minimizes vibration (Z1V1-Z3V3) and ensures long-term durability in high-load scenarios
  • 100*150*38mm specification with bearing steel construction provides the exact fit your machinery demands, backed by our 10+ years technical team for expert选型 support
  • In-stock availability and WMS real-time inventory mean you’ll receive orders quickly, eliminating delays that impact your production schedule

Description

Especificações do Produto

Parâmetro

Detalhes

Modelo Nº

51220 51320

Lubrificação

Graxa ou Óleo

Classificação de Precisão

P0 P6 P5 P4 P2

Vibração

Certificação

:2008

Estoque

em estoque

Serviço

OEM ODM

Alinhando

Rolamento Não Alinhante

Separado

Separado

Número de Linhas

Único

Direção da Carga

Rolamento Axial

Material

Aço para Rolamentos

Ângulo de Contato

Embalagem de Transporte

Palete de Caixas

Especificação

100*150*38 mm

Origem

China

Código HS

8482102000

Z1V1 Z2V2 Z3V3

Indústrias de Aplicação

Indústria

Equipamento Típico

Automotivo

Sistemas de transmissão, Mecanismos de direção

Máquinas Gerais

Máquinas de prensa, equipamentos de moldagem por injeção

Motores

Tampas de extremidade de motor elétrico, Conjuntos de geradores

Máquinas Industriais

Sistemas transportadores, Equipamentos de movimentação de materiais

Pare os Atrasos de Produção com Rolamentos Axiais de Esferas de Alta Precisão Confiáveis 51220 51320

OEM manufacturers know the frustration of unexpected downtime caused by bearing failures. Counterfeit thrust bearings often fail prematurely under heavy axial loads, leading to production line shutdowns and costly repairs. Sourcing from multi-tier distributors compounds the problem with inconsistent delivery times that disrupt manufacturing schedules. When every minute of downtime impacts your bottom line, reliable bearing supply isn’t just a convenience—it’s critical.

Rolamentos de esferas de encosto de alta precisão genuínos em estoque para envio imediato

Como distribuidor oficial da

, fornecemos rolamentos axiais de esferas de alta precisão 51220 e 51320, 100% rastreáveis, que atendem aos padrões . Nosso sistema de inventário em tempo real WMS garante que esses rolamentos estejam em estoque e prontos para envio, eliminando os atrasos das cadeias de suprimentos tradicionais. Projetados para aplicações OEM em máquinas, esses rolamentos axiais de fileira única proporcionam desempenho estável em transmissões automotivas, conjuntos de motores e equipamentos industriais gerais onde o manuseio de carga axial é essencial.

Desempenho ideal em aplicações de alta carga axial

Os Rolamentos Axiais de Esferas 51220 e 51320 se destacam em aplicações que exigem gerenciamento preciso de carga axial. Com um ângulo de contato de 0° e design separado, eles lidam eficientemente com cargas de empuxo puro em ambas as direções. Seu diâmetro de furo de 100 mm e diâmetro externo de 150 mm os tornam ideais para máquinas de médio porte, enquanto a largura de 38 mm fornece suporte robusto em ambientes de alta pressão. Seja usado em prensas ou sistemas de transporte, esses rolamentos mantêm o alinhamento e reduzem a vibração nas classes de vibração de a

.

Características Técnicas que Garantem Confiabilidade a Longo Prazo

Nossos Rolamentos Axiais de Esferas de Precisão incorporam elementos de projeto críticos para durabilidade industrial. A construção em aço para rolamentos proporciona alta dureza e resistência ao desgaste, prolongando a vida útil em operações de carga pesada. As classificações de precisão disponíveis, de P0 a P2, permitem a personalização para aplicações que exigem tolerâncias apertadas — os graus P5 e P4 são adequados para máquinas de alta velocidade onde o desalinhamento mínimo é crítico. A estrutura separada simplifica a instalação e a manutenção, enquanto a compatibilidade com lubrificação a graxa e a óleo oferece flexibilidade em diferentes condições operacionais. Esses atributos técnicos se combinam para fornecer desempenho consistente mesmo sob cargas flutuantes.

Por que Rolamentos Axiais Autênticos Reduzem os Custos Totais

Choosing genuine ISO9001 Thrust Bearings eliminates the hidden costs of counterfeit products. Unauthorized bearings often use substandard materials that fail prematurely, leading to emergency repairs, production losses, and potential safety hazards. Our three-level quality inspection system ensures each bearing meets NTN’s strict standards, reducing the risk of unexpected failures. While counterfeit bearings may offer lower upfront prices, the long-term savings from reduced downtime and maintenance make authentic bearings a smarter investment for OEM manufacturers focused on total cost of ownership.

Nosso Compromisso com o Fornecimento Confiável de Rolamentos

With over 10 years of experience serving clients in 50+ countries, we’ve built our reputation on four pillars of reliability: official NTN authorization ensures full product traceability with complete documentation; our ISO 9001 compliant quality system includes incoming material inspection and pre-shipment verification; a dedicated technical team provides application support from model selection to failure analysis; and global door-to-door logistics ensures on-time delivery regardless of destination. We maintain dedicated inventory for OEM partners, supporting both small-batch trials and large-scale production runs with equal efficiency.

Packaging & Shipping

    Embalagem de pallet de papelão com caixa interna protetora para evitar danos durante o transporte

    Dimensões da embalagem: 17.00cm * 17.00cm * 5.80cm com peso bruto de 2.370kg por unidade

    Envio no mesmo dia para pedidos em estoque, com entrega em 3-7 dias úteis globalmente

    Opções flexíveis de envio incluindo DHL, FedEx, UPS, frete aéreo e frete marítimo

    Rastreamento em tempo real fornecido para todas as remessas, com supervisão de um gerente de conta dedicado

    Quantidade mínima de pedido de 1 unidade, suportando tanto reparos de emergência quanto produção programada

Receba seus rolamentos axiais enviados hoje

Don’t let bearing supply issues disrupt your production schedule. Send us your order details—including model requirements (51220/51320), quantity, and application specifics—and receive a formal quotation with traceability certificates within 24 hours. Our in-stock inventory means you can secure the bearings you need without delay, keeping your machinery running and your production on track.

Perguntas Frequentes

P: Esses rolamentos axiais são genuínos?

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

Q: Como confirmo se o 51220/51320 é adequado para o meu equipamento?

A: Our technical team can assist with model verification. Provide your equipment specifications or operating conditions (load, speed, temperature), and we’ll confirm compatibility within 24 hours.

P: Qual é a sua política de garantia para esses rolamentos axiais?

A: All bearings come with NTN’s standard manufacturer warranty, covering manufacturing defects. We provide full after-sales support for warranty claims and replacement procedures.

P: Qual é a quantidade mínima do pedido?

A: Aceitamos pedidos a partir de 1 unidade, tornando-nos adequados tanto para manutenção de emergência quanto para necessidades de produção em pequenos lotes.

P: Com que rapidez vocês podem enviar após a confirmação do pedido?

A: Rolamentos em estoque são despachados no mesmo dia útil. Os prazos de entrega variam de 3 a 7 dias úteis, dependendo da sua localização e do método de envio escolhido.

Q: Como posso verificar a autenticidade dos rolamentos no recebimento?

A: Each bearing includes NTN

SECTION 12 / GET QUOTATION

Ready to Order
51220?

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-51220 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