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NTN GENUINE
IN STOCK
Rodamiento de bolas de empuje de alta precisión 51220 51320 para maquinaria OEM con certificación <p>
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Model
51220
Origin
JAPAN
Lead Time
5-7 DAYS
NTN AUTHORIZED · OEM SUPPLIER

Rodamiento de bolas de empuje de alta precisión 51220 51320 para maquinaria OEM con certificación <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

Especificaciones del Producto

Parámetro

Detalles

Modelo NO.

51220 51320

Lubricación

Grasa o Aceite

Clasificación de Precisión

P0 P6 P5 P4 P2

Vibración

Certificación

:2008

Inventario

en Stock

Servicio

OEM ODM

Alineando

Cojinete No Alineado

Separado

Separado

Número de Filas

Único

Dirección de Carga

Cojinete de empuje

Material

Acero para rodamientos

Ángulo de contacto

Paquete de Transporte

Palé de Cartón

Especificación

100*150*38 mm

Origen

China

Código HS

8482102000

Z1V1 Z2V2 Z3V3

Industrias de Aplicación

Industria

Equipo Típico

Automotriz

Sistemas de transmisión, Mecanismos de dirección

Maquinaria General

Máquinas de prensado, Equipos de moldeo por inyección

Motores

Tapas de motor eléctrico, ensamblajes de generador

Maquinaria Industrial

Sistemas de transporte, Equipos de manipulación de materiales

Detenga los retrasos en la producción con rodamientos de bolas de empuje de alta precisión fiables 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.

Rodamientos de bolas de empuje de alta precisión genuinos en stock para envío inmediato

Como distribuidor oficial de

, proporcionamos rodamientos de bolas de empuje de alta precisión 51220 y 51320 100% trazables que cumplen con los estándares . Nuestro sistema de inventario en tiempo real WMS garantiza que estos rodamientos estén en stock y listos para enviar, eliminando los retrasos de las cadenas de suministro tradicionales. Diseñados para aplicaciones OEM de maquinaria, estos rodamientos de empuje de una fila ofrecen un rendimiento estable en transmisiones automotrices, ensamblajes de motores y equipos industriales generales donde el manejo de carga axial es esencial.

Rendimiento Óptimo en Aplicaciones de Carga Axial Alta

Los rodamientos de bolas de empuje 51220 y 51320 sobresalen en aplicaciones que requieren una gestión precisa de la carga axial. Con un ángulo de contacto de 0° y un diseño separado, manejan cargas de empuje puro de manera eficiente en ambas direcciones. Su diámetro de orificio de 100 mm y diámetro exterior de 150 mm los hacen ideales para maquinaria de tamaño mediano, mientras que el ancho de 38 mm proporciona un soporte robusto en entornos de alta presión. Ya sea en máquinas de prensado o sistemas de transporte, estos rodamientos mantienen la alineación y reducen la vibración en las clases de vibración de a

.

Características técnicas que garantizan una fiabilidad a largo plazo

Nuestros rodamientos de bolas de empuje de precisión incorporan elementos de diseño críticos para la durabilidad industrial. La construcción de acero para rodamientos proporciona alta dureza y resistencia al desgaste, extendiendo la vida útil en operaciones de alta carga. Las clasificaciones de precisión disponibles de P0 a P2 permiten la personalización para aplicaciones que requieren tolerancias ajustadas; las calificaciones P5 y P4 son adecuadas para maquinaria de alta velocidad donde el desalineamiento mínimo es crítico. La estructura separada simplifica la instalación y el mantenimiento, mientras que la compatibilidad con lubricación tanto de grasa como de aceite ofrece flexibilidad en diversas condiciones de operación. Estos atributos técnicos se combinan para ofrecer un rendimiento constante incluso bajo cargas fluctuantes.

Por qué los rodamientos de empuje auténticos reducen los costos totales

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.

Nuestro Compromiso con el Suministro Confiable de Rodamientos

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

    Embalaje de palets de cartón con cajas internas protectoras para prevenir daños durante el transporte

    Dimensiones del paquete: 17.00cm * 17.00cm * 5.80cm con un peso bruto de 2.370kg por unidad

    Despacho el mismo día para pedidos en stock, con entrega dentro de 3-7 días hábiles a nivel global {{ZKF_0}}Opciones de envío flexibles que incluyen DHL, FedEx, UPS, transporte aéreo y transporte marítimo{{ZKF_1}}

    Seguimiento en tiempo real proporcionado para todos los envíos, con supervisión de un gerente de cuentas dedicado

    Cantidad mínima de pedido de 1 unidad, apoyando tanto reparaciones de emergencia como producción programada

Recibe tus rodamientos de empuje hoy mismo

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.

Preguntas Frecuentes

Q: ¿Son estos rodamientos de empuje genuinos?

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

Q: ¿Cómo confirmo si el 51220/51320 es adecuado para mi equipo?

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: ¿Cuál es su política de garantía para estos rodamientos de empuje?

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.

Q: ¿Cuál es la cantidad mínima de pedido?

A: Aceptamos pedidos a partir de 1 unidad, lo que nos hace adecuados tanto para necesidades de mantenimiento de emergencia como para producción en pequeñas cantidades.

P: ¿Qué tan rápido pueden enviar después de la confirmación del pedido?

A: Los rodamientos en stock se envían el mismo día hábil. Los tiempos de entrega varían de 3 a 7 días hábiles dependiendo de su ubicación y del método de envío elegido.

Q: ¿Cómo puedo verificar la autenticidad de los rodamientos al recibirlos?

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