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NTN Nu2340em Cylindrical Roller Bearing 200x420x138mm for Automotive Machinery thumbnail 1
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NTN GENUINE
IN STOCK
NTN Nu2340em Cylindrical Roller Bearing 200x420x138mm for Automotive Machinery
NTN Nu2340em Cylindrical Roller Bearing 200x420x138mm for Automotive Machinery - Side View
NTN Nu2340em Cylindrical Roller Bearing 200x420x138mm for Automotive Machinery - Detail
NTN Nu2340em Cylindrical Roller Bearing 200x420x138mm for Automotive Machinery - Dimension
Model
NTN-726
Origin
JAPAN
Lead Time
5-7 DAYS
NTN AUTHORIZED · OEM SUPPLIER

NTN Nu2340em Cylindrical Roller Bearing 200x420x138mm for Automotive Machinery

MODEL: NTN-726 100% Genuine · Traceable

Ensure uninterrupted production with the NTN Nu2340em cylindrical roller bearing, engineered to deliver exceptional radial load capacity and precision for automotive machinery. As an official NTN distributor, we guarantee 100% genuine 200x420x138mm bearings with full traceability, eliminating customs clearance delays and quality risks.Separated inner/outer ring design allows easy installation and maintenance, reducing downtime during equipment servicingBearing steel construction with P0-P2 precision ratings ensures consistent performance under heavy loads in automotive manufacturing linesBacked by our 10+ years technical team for expert model selection and after-sales support, streamlining your procurement process

Key Specifications
SPEC-01
Bore (d)
200mm
OD (D)
420mm
Width (B)
138mm
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)200 mm
Outer Diameter (D)420 mm
Width (B)138 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 TypeCylindrical 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

Ensure uninterrupted production with the NTN Nu2340em cylindrical roller bearing, engineered to deliver exceptional radial load capacity and precision for automotive machinery. As an official NTN distributor, we guarantee 100% genuine 200x420x138mm bearings with full traceability, eliminating customs clearance delays and quality risks.

  • Separated inner/outer ring design allows easy installation and maintenance, reducing downtime during equipment servicing
  • Bearing steel construction with P0-P2 precision ratings ensures consistent performance under heavy loads in automotive manufacturing lines
  • Backed by our 10+ years technical team for expert model selection and after-sales support, streamlining your procurement process

Description

Product Specifications

Parameter Details
Model NO. Nu2340em
Outer Dimension 35mm-180mm
Material Bearing Steel
Spherical Non-Aligning Bearings
Load Direction Radial Bearing
Separated Separated
Product Name Cylindrical Roller Bearing
Bore Size 15-90 mm
Structure Cylindrical
Lubrication Grease or Oil
Precision Rating P0 P6 P5 P4 P2
Vibration Z1V1 Z2V2 Z3V3
Service OEM ODM
Transport Package Carton Pallet
Specification 200*420*138mm
Trademark NTN
Origin Japan
HS Code 8482500090
Production Capacity 100000

Application Industries

Industry Typical Equipment
Automotive Transmission systems, engine components, axle assemblies
General Machinery Industrial gearboxes, electric motors, pumps and compressors
Rail Transit Train bogies, traction motors, wheel axles

Stop Equipment Downtime with Genuine NTN Nu2340em Cylindrical Roller Bearing

OEM manufacturers across automotive and machinery sectors face recurring challenges: counterfeit bearings causing unexpected failures, multi-layer distribution delays disrupting production schedules, and insufficient technical support increasing maintenance costs. These issues aren’t just inconveniences—they directly impact your bottom line through lost production hours and equipment damage.

Genuine NTN Nu2340em Bearings: Reliable Supply Chain You Can Trust

As an official NTN distributor, we provide the NTN Nu2340em cylindrical roller bearing with complete traceability documentation, eliminating the risks of gray-market products. Our WMS real-time inventory system ensures this 200x420x138mm bearing is available for immediate dispatch, supporting both scheduled production runs and emergency maintenance needs in automotive machinery applications.

Optimal Performance in Heavy-Duty Applications

The NTN Nu2340em cylindrical roller bearing is engineered for radial load handling in high-torque machinery. Its separated structure allows for easy installation and maintenance, while the bearing steel construction ensures durability under continuous operation. This design makes it ideal for automotive transmission systems and industrial gearboxes where reliable radial load support is critical.

Technical Features That Maximize Equipment Uptime

Key specifications of the NTN Nu2340em contribute directly to operational efficiency. The precision rating options (P0 to P2) allow matching to application requirements, with higher grades reducing vibration and noise in precision machinery. Vibration classes Z1V1 to Z3V3 ensure smooth operation across speed ranges, while the separated design facilitates quick replacement during maintenance, minimizing downtime. The 200x420x138mm dimension provides robust load capacity suitable for heavy-duty automotive and industrial equipment.

Why Genuine NTN Bearings Reduce Total Cost of Ownership

Counterfeit cylindrical roller bearings may offer lower upfront costs, but they often fail prematurely—costing far more in production downtime and equipment repairs. Our genuine NTN Nu2340em bearings come with full traceability, ensuring compliance with OEM quality standards. With ISO 9001 compliant quality inspection, each bearing meets NTN’s strict performance criteria, delivering consistent service life and reducing long-term maintenance expenses.

Our Commitment to Your Production Success

With over 10 years of technical expertise, we stand behind every NTN bearing we supply. As an authorized distributor, we provide complete export documentation for customs clearance, supporting clients in 50+ countries. Our dedicated account managers oversee the entire process from order placement to delivery, while our technical team offers application guidance to ensure optimal bearing selection. We maintain centralized inventory for quick fulfillment, with global door-to-door logistics options to meet your production timeline.

Packaging & Shipping

  • Original NTN packaging with carton and pallet reinforcement for secure transport
  • Package Size: 44.00cm * 44.00cm * 15.80cm
  • Package Gross Weight: 97.000kg
  • Global logistics options including DHL, FedEx, UPS, air and sea freight
  • Real-time shipment tracking provided upon dispatch
  • Flexible order quantities with support for small-batch trials and bulk orders

Get Your NTN Nu2340em Bearing Today

Don’t let bearing issues disrupt your production schedule. Send us your order details, including quantity and application requirements, and we’ll provide a formal quotation with authorization documentation within 24 hours. Our streamlined process ensures you receive genuine NTN bearings when you need them, keeping your machinery running efficiently.

Frequently Asked Questions

Q: Are these genuine NTN bearings?

A: Yes, we are an official NTN authorized distributor. Every NTN Nu2340em bearing comes with complete traceability documentation to verify authenticity.

Q: How can I confirm if this bearing fits my equipment?

A: Provide your equipment model or technical parameters (load, speed, operating conditions), and our technical team will verify compatibility at no cost.

Q: What is your warranty policy?

A: All NTN bearings are covered by the manufacturer’s warranty against manufacturing defects. We provide full support for warranty claims and replacements.

Q: What is the minimum order quantity?

A: We accept orders starting from 1 piece, suitable for both emergency repairs and small-batch production needs.

Q: How long does shipping take?

A: In-stock bearings are dispatched within 3-7 business days. Delivery time depends on your location and chosen logistics method.

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

A: Each bearing includes NTN’s original packaging with security features. We also provide authorization certificates and traceability documents for verification.

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
NTN-726?

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-NTN-72 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