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NTN 30326 Tapered Roller Bearing 130x280x58mm for Reducer with OEM Service thumbnail 1
NTN 30326 Tapered Roller Bearing 130x280x58mm for Reducer with OEM Service - Side View thumbnail 2
NTN 30326 Tapered Roller Bearing 130x280x58mm for Reducer with OEM Service - Detail thumbnail 3
NTN 30326 Tapered Roller Bearing 130x280x58mm for Reducer with OEM Service - Dimension thumbnail 4
NTN GENUINE
IN STOCK
NTN 30326 Tapered Roller Bearing 130x280x58mm for Reducer with OEM Service
NTN 30326 Tapered Roller Bearing 130x280x58mm for Reducer with OEM Service - Side View
NTN 30326 Tapered Roller Bearing 130x280x58mm for Reducer with OEM Service - Detail
NTN 30326 Tapered Roller Bearing 130x280x58mm for Reducer with OEM Service - Dimension
Model
30326
Origin
JAPAN
Lead Time
5-7 DAYS
NTN AUTHORIZED · OEM SUPPLIER

NTN 30326 Tapered Roller Bearing 130x280x58mm for Reducer with OEM Service

MODEL: 30326 100% Genuine · Traceable

Ensure your reducer operates with uncompromised precision and reliability using the NTN 30326 bearing, a Japanese-engineered tapered roller solution designed for heavy-duty industrial applications. With dimensions 130x280x58mm and P5 precision rating, this bearing minimizes vibration (Z3V3 class) to extend equipment lifespan while maintaining consistent performance under high axial and radial loads.100% genuine NTN Japan product with full traceability documentation, eliminating compliance risks in global supply chainsSupports both grease and oil lubrication for flexible integration into existing maintenance protocolsBacked by Dunyu Bearings' ISO 9001 quality system and dedicated OEM service, ensuring batch stability for production scheduling

Key Specifications
SPEC-01
Bore (d)
130mm
OD (D)
280mm
Width (B)
58mm
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)130 mm
Outer Diameter (D)280 mm
Width (B)58 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 TypeTapered 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 your reducer operates with uncompromised precision and reliability using the NTN 30326 bearing, a Japanese-engineered tapered roller solution designed for heavy-duty industrial applications. With dimensions 130x280x58mm and P5 precision rating, this bearing minimizes vibration (Z3V3 class) to extend equipment lifespan while maintaining consistent performance under high axial and radial loads.

  • 100% genuine NTN Japan product with full traceability documentation, eliminating compliance risks in global supply chains
  • Supports both grease and oil lubrication for flexible integration into existing maintenance protocols
  • Backed by Dunyu Bearings’ ISO 9001 quality system and dedicated OEM service, ensuring batch stability for production scheduling

Description

Product Specifications

Parameter Details
Model NO. 30326
Lubrication Grease or Oil
Precision Rating P0 P6 P5 P4 P2
Vibration Z1V1 Z2V2 Z3V3
Service OEM ODM
Specification 130*280*58 mm
Trademark NTN
Origin Japan
HS Code 8482200000
Package Size 30.00cm * 30.00cm * 7.50cm
Package Gross Weight 17.300kg

Application Industries

Industry Typical Equipment
General Machinery Industrial Reducers, Gearboxes, Conveyor Systems
Automotive Transmission Systems, Axle Assemblies
Heavy Machinery Construction Equipment Gearboxes, Mining Machinery Reducers

Stop Reducer Downtime with Genuine NTN 30326 Tapered Roller Bearings

Reducer failures often trace back to bearing issues—counterfeit parts with inconsistent hardness lead to premature wear, while delayed deliveries from multi-tier distributors disrupt production schedules. For manufacturers operating in Southeast Asia, Europe, and North America, these challenges translate to thousands in lost productivity each week.

Genuine NTN 30326 Bearings with Traceable Supply Chain

As an official NTN distributor, we eliminate these risks by providing 100% authentic NTN 30326 tapered roller bearings with full traceability documentation. Our WMS real-time inventory system ensures the 130x280x58mm reducer bearings you need are in stock, while our ISO 9001 compliant three-level inspection guarantees batch consistency—critical for high-precision reducer applications.

Engineered for High-Load Reducer Performance

The NTN 30326 tapered roller bearing is specifically designed to handle the radial and axial loads common in reducer operations. With precision ratings up to P5 and vibration levels as low as Z3V3, it maintains stability even under varying torque conditions, reducing noise and extending equipment lifespan in automotive transmission and industrial gearbox applications.

Technical Specifications That Matter for Reducer Reliability

Key parameters of the NTN 30326 directly impact reducer performance: its 130mm bore diameter and 280mm outer diameter provide optimal load distribution, while the 58mm width ensures sufficient contact area for handling heavy loads. The P5 precision rating minimizes runout, critical for maintaining gear mesh accuracy, and the Z3V3 vibration class reduces operational noise—essential for precision machinery environments. Available lubrication options (grease or oil) allow customization to specific operating temperatures and speeds.

Why Genuine NTN Bearings Lower Your Total Cost

Gray-market bearings may offer lower upfront prices, but their inconsistent material quality often results in 30-50% shorter service life compared to genuine NTN products. A single reducer failure can cost $1,500+ in downtime and repairs—far exceeding the savings from counterfeit parts. Our NTN 30326 bearings, backed by NTN’s decades of engineering expertise, deliver predictable performance that reduces maintenance costs and unplanned shutdowns.

Why Global Manufacturers Trust Our NTN Supply

With 10+ years serving 50+ countries, we’ve built our reputation on four pillars: official NTN authorization ensures every bearing is sourced directly from Japan; our technical team provides application-specific guidance, from model selection to installation; dedicated account managers track orders from warehousing to door-to-door delivery; and flexible OEM customization supports unique reducer requirements. We provide complete export documentation, including certificate of origin and material test reports, to streamline customs clearance.

Packaging & Shipping

  • Carton and pallet packaging with protective inner wrapping to prevent damage during transit
  • Standard lead time: 3-7 business days for in-stock items
  • Global logistics options: DHL, FedEx, UPS, air freight, and sea freight available
  • Real-time tracking provided once shipment is dispatched
  • Minimum order quantity: 1 piece, supporting both emergency repairs and bulk OEM orders

Get Your NTN 30326 Bearing Quote Today

Don’t let bearing-related downtime slow your production. Send us your NTN 30326 bearing quantity, application details (reducer model, operating speed, load conditions), and delivery location—our team will issue a formal quotation with traceability certificates within 24 hours. For urgent requirements, contact our WhatsApp hotline for priority processing.

Frequently Asked Questions

Q: Are these genuine NTN bearings?

A: Yes, we are an official NTN authorized distributor. Every NTN 30326 bearing comes with complete traceability documentation and brand authorization certificates.

Q: How do I confirm if the 30326 is suitable for my reducer?

A: Provide your reducer model, operating speed, and load conditions. Our technical team will verify compatibility and recommend the appropriate precision and vibration等级 based on your application.

Q: What is your warranty policy?

A: We offer NTN’s standard manufacturer warranty, covering manufacturing defects. If a bearing fails due to material or production issues, we provide free replacement and support claim processing.

Q: What is the minimum order quantity?

A: We accept orders for 1 piece, ideal for emergency repairs, as well as bulk OEM orders with reserved inventory.

Q: How long does shipping take to Europe/North America?

A: For in-stock NTN 30326 bearings, standard delivery to Europe takes 5-7 days, and to North America takes 7-10 days via express courier.

Q: How can I verify the authenticity of the bearing?

A: Each bearing features NTN’s laser-etched logo and packaging with security labels. We also provide batch traceability reports and can协助 verification through NTN’s 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
30326?

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-30326 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