Rolamento de rolos cilíndricos <p> 45x100x25mm para fornecimento OEM de máquinas automotivas
MODEL: NTN-252100% Genuine · Traceable
Ensure seamless automotive machinery performance with the Cylindrical Roller Bearing NF309EM, engineered to deliver reliable radial load handling and precise operation in critical OEM applications. This 45x100x25mm bearing features separated inner and outer rings for easy installation and maintenance, reducing downtime during assembly or replacement.Single row design with open seals optimizes lubrication flow, ideal for high-speed automotive machinery where heat dissipation is keyManufactured from premium bearing steel with precision ratings from P0 to P2, ensuring batch consistency for production line reliabilityBacked by NTN's authorized supply chain, providing full traceability documentation to streamline customs clearance and quality compliance
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.
Q.01How 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.02What 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.03Do 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.04What 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.05What 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.06Can 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 seamless automotive machinery performance with the Cylindrical Roller Bearing NF309EM, engineered to deliver reliable radial load handling and precise operation in critical OEM applications. This 45x100x25mm bearing features separated inner and outer rings for easy installation and maintenance, reducing downtime during assembly or replacement.
Single row design with open seals optimizes lubrication flow, ideal for high-speed automotive machinery where heat dissipation is key
Manufactured from premium bearing steel with precision ratings from P0 to P2, ensuring batch consistency for production line reliability
Backed by NTN’s authorized supply chain, providing full traceability documentation to streamline customs clearance and quality compliance
Evite Atrasos na Produção com Rolamento de Rolos Cilíndricos Genuíno
45x100x25mm
Production lines grinding to a halt due to bearing failures isn’t just inconvenient—it’s costly. Many manufacturers face the double risk of counterfeit bearings causing premature breakdowns and multi-tier distributors stretching delivery times by 30-50%. When your automotive machinery or industrial equipment needs a reliable 45x100x25mm bearing, these delays can derail production schedules and erode profitability.
Genuíno
Rolamento de Rolos Cilíndricos – Em Estoque e Rastreável
As an official NTN distributor, we eliminate these pain points with direct access to authentic Cylindrical Roller Bearing NF309EM units. Our WMS real-time inventory system ensures your 45x100x25mm bearing is ready for immediate dispatch, while our ISO 9001 compliant three-level quality inspection guarantees batch consistency. Whether it’s for automotive transmissions or motor applications, we deliver bearings that match your exact specifications without the wait.
Projetado para aplicações de alta carga radial
O Rolamento de Rolos Cilíndricos
foi projetado para se destacar em ambientes de alta carga radial típicos de maquinário automotivo e equipamentos industriais. Seus anéis interno e externo separados permitem fácil instalação e manutenção, enquanto a estrutura cilíndrica de uma fileira proporciona distribuição ideal de carga. Isso o torna ideal para operação contínua em caixas de engrenagens, motores elétricos e transportadores, onde a confiabilidade sob estresse constante não é negociável.
Precisão Técnica que Impulsiona o Desempenho
Cada aspecto do Rolamento
é projetado para desempenho. A construção em aço para rolamentos garante durabilidade sob cargas pesadas, enquanto as classificações de precisão de P0 a P2 atendem aplicações que exigem tolerâncias apertadas. Seu design de vedação aberta permite opções flexíveis de lubrificação—óleo, graxa ou operação a seco—adaptando-se a diversas condições de trabalho. As dimensões de 45x100x25mm equilibram compacidade com capacidade de carga, tornando-o uma escolha versátil para máquinas com espaço limitado.
Por que a Autenticidade Importa para o seu Resultado Final
Rolamentos falsificados podem parecer um atalho para economizar custos, mas frequentemente levam a despesas ocultas: tempo de inatividade inesperado, aumento dos custos de manutenção e possíveis danos a componentes adjacentes. Nossos Rolamentos de Rolos Cilíndricos
vêm com documentação completa de rastreabilidade, eliminando problemas de desembaraço aduaneiro e disputas de qualidade. Ao investir em peças genuínas, você reduz o risco de falhas prematuras e garante maior vida útil do equipamento—reduzindo, em última análise, o seu custo total de propriedade.
Por que fabricantes globais confiam em nossa cadeia de suprimentos
Nossa expertise técnica de mais de 10 anos e serviços em mais de 50 países nos tornam um parceiro confiável para fabricantes automotivos e de maquinário. Oferecemos: autorização oficial
com rastreabilidade completa do produto; reserva dedicada de estoque para acordos de fornecimento de longo prazo; rastreamento em tempo real do pedido, do armazém até a entrega; e suporte técnico sob demanda para instalação e análise de falhas. Nossa rede logística porta a porta garante que seu Rolamento de Rolos Cilíndricos 45x100x25mm chegue quando e onde você precisar.
Packaging & Shipping
Embalagem original do fabricante com especificações do produto e documentação de rastreabilidade
Embalagem em caixa de papelão e palete para transporte seguro de pedidos em grandes quantidades
Despacho em 3-7 dias úteis para itens em estoque
Opções de entrega global incluindo DHL, FedEx, UPS, frete aéreo e frete marítimo
Rastreamento de logística em tempo real fornecido para todas as remessas
Quantidades de pedido flexíveis sem exigência de compra mínima
Obtenha Seu
Rolamento Enviado Hoje
Don’t let bearing procurement slow down your production. Send us your order details—including quantity and application requirements—and our team will issue a formal quotation within 24 hours. With our ready inventory and global logistics, you can minimize downtime and keep your operations running smoothly.
Perguntas Frequentes
Q: Estes são rolamentos genuínos ?
A: Sim, somos um distribuidor oficial autorizado da
. Todo Rolamento de Rolos Cilíndricos vem com documentação completa de rastreabilidade para verificar a autenticidade.
P: Como confirmo se este rolamento se encaixa no meu equipamento?
A: Forneça o modelo do seu equipamento ou parâmetros de condição de trabalho, e nossa equipe técnica verificará a compatibilidade com a especificação de 45x100x25mm
.
P: Qual é a sua política de garantia?
A: We adhere to NTN’s original manufacturer warranty standards, covering manufacturing defects with unconditional replacement or refund.
P: Qual é a quantidade mínima do pedido?
A: Aceitamos pedidos a partir de 1 unidade, atendendo tanto a necessidades de manutenção emergencial quanto a requisitos de OEM em lote.
P: Quanto tempo leva o envio para o meu país?
A: Itens em estoque são enviados em 3-7 dias úteis. O prazo de entrega depende da sua localização, com opções expressas disponíveis para necessidades urgentes.
Q: How can I verify the bearing’s authenticity upon receipt?
A: Each bearing includes NTN’s original packaging with security features. We also provide traceability certificates and brand authorization documents for verification.
Ready to order or need a quote?
Send your bearing designation, application details, and quantity — we’ll respond within 24 hours.
Submit your inquiry below. Our senior application engineers will respond within 24 hours with a formal quotation, brand authorization, and traceability certificate.
