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Rodamiento de bolas de ranura profunda 6311 25x52x15mm ZZ 2RS calidad OEM para aplicaciones de motocicletas thumbnail 1
Rodamiento de bolas de ranura profunda 6311 25x52x15mm ZZ 2RS calidad OEM para aplicaciones de motocicletas - Side View thumbnail 2
Rodamiento de bolas de ranura profunda 6311 25x52x15mm ZZ 2RS calidad OEM para aplicaciones de motocicletas - Detail thumbnail 3
Rodamiento de bolas de ranura profunda 6311 25x52x15mm ZZ 2RS calidad OEM para aplicaciones de motocicletas - Dimension thumbnail 4
NTN GENUINE
IN STOCK
Rodamiento de bolas de ranura profunda 6311 25x52x15mm ZZ 2RS calidad OEM para aplicaciones de motocicletas
Rodamiento de bolas de ranura profunda 6311 25x52x15mm ZZ 2RS calidad OEM para aplicaciones de motocicletas - Side View
Rodamiento de bolas de ranura profunda 6311 25x52x15mm ZZ 2RS calidad OEM para aplicaciones de motocicletas - Detail
Rodamiento de bolas de ranura profunda 6311 25x52x15mm ZZ 2RS calidad OEM para aplicaciones de motocicletas - Dimension
Model
6311
Origin
JAPAN
Lead Time
5-7 DAYS
NTN AUTHORIZED · OEM SUPPLIER

Rodamiento de bolas de ranura profunda 6311 25x52x15mm ZZ 2RS calidad OEM para aplicaciones de motocicletas

MODEL: 6311 100% Genuine · Traceable

Ensure smooth motorcycle performance with our Deep Groove Ball Bearing 6311, engineered to deliver reliable power transmission and reduced maintenance downtime. This 25x52x15mm precision bearing features dual sealing options (ZZ/2RS) to protect against dust and moisture, critical for withstanding the rigors of motorcycle applications.Single-row radial design optimized for high-speed rotation, minimizing friction and extending component lifeISO 9001-certified quality with full traceability documentation, ensuring compliance and peace of mind in global supply chainsGrease-lubricated for immediate installation, supported by our 10+ years technical team for customized application guidance

Key Specifications
SPEC-01
Bore (d)
25mm
OD (D)
52mm
Width (B)
15mm
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)25 mm
Outer Diameter (D)52 mm
Width (B)15 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 motorcycle performance with our Deep Groove Ball Bearing 6311, engineered to deliver reliable power transmission and reduced maintenance downtime. This 25x52x15mm precision bearing features dual sealing options (ZZ/2RS) to protect against dust and moisture, critical for withstanding the rigors of motorcycle applications.

  • Single-row radial design optimized for high-speed rotation, minimizing friction and extending component life
  • ISO 9001-certified quality with full traceability documentation, ensuring compliance and peace of mind in global supply chains
  • Grease-lubricated for immediate installation, supported by our 10+ years technical team for customized application guidance

Description

Especificaciones del Producto

Parámetro

Detalles

Modelo NO.

6311

Separado

No separado

Número de Filas

Único

Dirección de Carga

Rodamiento Radial

Material

Acero para rodamientos

Nombre del Producto

Rodamiento de Bolas de Surco Profundo

Tipo de Sellos

ZZ 2RS Abierto

Lubricación

Grasa o Aceite

Clasificación de Precisión

P0 P6 P5 P4

Vibración

Servicio

OEM ODM

Paquete de Transporte

Palé de Cartón

Especificación

25×52×15 mm

Código HS

8482102000

Z1V1 Z2V2 Z3V3

Industrias de Aplicación

Industria

Equipo Típico

Motores de motocicleta, sistemas de transmisión, bujes de rueda

Maquinaria General

Motores eléctricos, bombas, reductores, transportadores

Automotive & Motorcycles

Detenga el tiempo de inactividad de la motocicleta con rodamientos de bolas de surco profundo 6311 fiables

Los fabricantes de motocicletas y los servicios de mantenimiento a menudo enfrentan paradas inesperadas debido a fallos en los rodamientos. Los rodamientos falsificados con sellado deficiente o defectos de material pueden provocar fugas de aceite, sobrecalentamiento y desgaste prematuro, lo que cuesta horas de tiempo de reparación y pérdida de productividad. Sourcing de canales poco fiables también significa tiempos de entrega inconsistentes, lo que dificulta la alineación con los horarios de producción.

Rodamiento de Bolas de Surco Profundo Original 6311 para un Rendimiento Estable de Motocicletas

Nuestro rodamiento de bolas de ranura profunda 6311, diseñado específicamente para aplicaciones de motocicletas, aborda estos desafíos de manera directa. Con dimensiones precisas de 25x52x15mm y opciones de sellos ZZ (metálico) y 2RS (goma), este rodamiento asegura una protección efectiva contra el polvo y la humedad en condiciones de conducción difíciles. Como distribuidor oficial de con certificación de calidad ISO 9001, garantizamos un suministro trazable y estable por lotes directamente de canales autorizados, eliminando los riesgos de productos falsificados.

Rendimiento Óptimo en Condiciones de Operación de Motocicletas

Este rodamiento 6311 sobresale en entornos de carga radial a alta velocidad típicos de motores y transmisiones de motocicletas. Su diseño de una sola fila y construcción de acero para rodamientos ofrecen un rendimiento constante bajo temperaturas y niveles de vibración variables ( a

grados), asegurando una transmisión de potencia suave y una vida útil prolongada. Ya sea para motocicletas de calle, motocicletas todoterreno o scooters comerciales, el rodamiento de ranura profunda de 25x52x15mm proporciona la fiabilidad necesaria para un funcionamiento continuo.

Características técnicas que importan para los rodamientos de motocicleta

The precision rating options (P0 to P4) allow customization based on application requirements—P5/P4 grades for high-precision engines reduce noise and vibration, while P0/P6 suits standard transmission systems. The choice between ZZ and 2RS seals balances maintenance needs: ZZ seals offer superior heat resistance for high-temperature engine compartments, while 2RS seals provide enhanced protection against debris in off-road conditions. Grease or oil lubrication flexibility ensures compatibility with different motorcycle manufacturers’ specifications, simplifying integration into existing assembly lines.

Evite Costos Ocultos de Rodamientos de Motocicleta de Baja Calidad

Choosing non-genuine 6311 2RS Motorcycle Bearings may seem cost-effective initially, but the long-term expenses tell a different story. Early failures can damage关联 components like crankshafts or gearbox housings, leading to repair bills 5-10 times the bearing cost. Our fully traceable bearings, backed by NTN’s OEM quality standards, reduce total cost of ownership by minimizing downtime and extending service intervals. Each unit comes with complete documentation, ensuring compliance with export customs requirements and avoiding delays in international shipments.

Por qué los fabricantes de motocicletas confían en nuestro suministro de rodamientos

Con más de 10 años de experiencia técnica y servicio en más de 50 países, nos destacamos como un socio confiable para las necesidades de rodamientos de motocicleta. Nuestro sistema de inventario en tiempo real WMS garantiza la disponibilidad de stock para pedidos urgentes, mientras que los gerentes de cuentas dedicados brindan soporte integral desde la selección hasta el servicio postventa. Ofrecemos pedidos de prueba en pequeñas cantidades para la verificación de calidad, seguidos de acuerdos de suministro a largo plazo con inventario reservado, perfectos para coincidir con los ciclos de producción. Nuestra red logística global puerta a puerta entrega en el sudeste asiático, Europa y América del Norte dentro de los plazos de entrega estándar, con toda la documentación de exportación incluida.

Packaging & Shipping

    Embalaje seguro en cartón y paletas con etiquetas de producto e información de trazabilidad

    Artículos en stock enviados dentro de 3-7 días hábiles después de la confirmación del pedido

    Envío flexible a través de DHL, FedEx, UPS, transporte aéreo o transporte marítimo según la urgencia y el volumen

    Números de seguimiento en tiempo real proporcionados una vez que se despacha el envío

    Cantidad mínima de pedido de 1 unidad disponible para reparaciones de emergencia y pruebas de pequeños lotes

Recibe tus rodamientos de motocicleta 6311 a tiempo

No dejes que los problemas de rodamientos interrumpan tu producción o programa de mantenimiento. Ya sea que necesites 10 unidades para reparaciones urgentes o 10,000 para producción OEM, nuestro proceso optimizado garantiza una respuesta rápida y una entrega confiable. Envíanos tus requisitos de modelo, detalles de la aplicación y volumen de pedido hoy mismo; te proporcionaremos una cotización formal con certificados de autorización en un plazo de 24 horas.

Preguntas Frecuentes

Q: ¿Son estos rodamientos genuinos?

A: Sí, somos un distribuidor autorizado oficial de . Cada rodamiento 6311 viene con documentación de trazabilidad completa para verificar la autenticidad, incluidos los certificados de autorización de la marca.

Q: ¿Cómo confirmo si el rodamiento 6311 25x52x15mm se ajusta a mi modelo de motocicleta?

A: Provide your motorcycle’s make, model, and engine type, or share the original equipment’s bearing specifications. Our technical team will verify compatibility and recommend the appropriate seal type (ZZ/2RS) and precision grade.

Q: ¿Cuál es la política de garantía para estos rodamientos?

A: All bearings are covered by NTN’s OEM warranty standards. Manufacturing defects are eligible for unconditional replacement or refund, with support from our dedicated after-sales team.

Q: ¿Cuál es la cantidad mínima de pedido?

A: Aceptamos pedidos a partir de 1 unidad, lo que lo hace adecuado para mantenimiento de emergencia, pruebas de muestras o necesidades de producción en pequeñas cantidades.

Q: ¿Cuánto tiempo tarda el envío a Europa?

A: Los rodamientos 6311 en stock generalmente se envían a destinos europeos dentro de 5-7 días hábiles a través de DHL o FedEx. Para el transporte marítimo, la entrega tarda de 30 a 40 días, ideal para pedidos al por mayor.

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

A: Each bearing includes NTN’s original packaging with anti-counterfeit labels. We also provide traceability documents linking the product to NTN’s manufacturing batch, which can be cross-verified through 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
6311?

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-6311 SECURE SSL

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ISO 9001:2015 · JIS B 1518