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NTN GENUINE
IN STOCK
51105-51109 Thrust Ball Bearings ISO9001 Certified for Automotive Machinery OEM Supply
51105-51109 Thrust Ball Bearings ISO9001 Certified for Automotive Machinery OEM Supply - Side View
51105-51109 Thrust Ball Bearings ISO9001 Certified for Automotive Machinery OEM Supply - Detail
51105-51109 Thrust Ball Bearings ISO9001 Certified for Automotive Machinery OEM Supply - Dimension
Model
51105-51109
Origin
JAPAN
Lead Time
5-7 DAYS
NTN AUTHORIZED · OEM SUPPLIER

51105-51109 Thrust Ball Bearings ISO9001 Certified for Automotive Machinery OEM Supply

MODEL: 51105-51109 100% Genuine · Traceable

Ensure uninterrupted production with 51105-51109 Thrust Ball Bearings—ISO9001 certified solutions engineered for automotive and machinery OEMs. These 45*65*14mm precision bearings deliver consistent axial load performance, eliminating costly downtime from unreliable components.Single-row separated design allows easy installation and maintenance, critical for high-volume assembly linesAvailable in P0-P2 precision ratings with Z1V1-Z3V3 vibration control to match your exact working conditionsBacked by Dunyu Bearings' 10+ years technical expertise and real-time inventory, ensuring on-schedule delivery for your production needs

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 uninterrupted production with 51105-51109 Thrust Ball Bearings—ISO9001 certified solutions engineered for automotive and machinery OEMs. These 45*65*14mm precision bearings deliver consistent axial load performance, eliminating costly downtime from unreliable components.

  • Single-row separated design allows easy installation and maintenance, critical for high-volume assembly lines
  • Available in P0-P2 precision ratings with Z1V1-Z3V3 vibration control to match your exact working conditions
  • Backed by Dunyu Bearings’ 10+ years technical expertise and real-time inventory, ensuring on-schedule delivery for your production needs

Description

Product Specifications

Parameter Details
Model NO. 51109
Lubrication Grease or Oil
Precision Rating P0 P6 P5 P4 P2
Vibration Z1V1 Z2V2 Z3V3
Certification ISO9001:2008
Stock in Stock
Service OEM ODM
Aligning Non-Aligning Bearing
Separated Separated
Rows Number Single
Load Direction Thrust Bearing
Material Bearing Steel
Contact Angle
Transport Package Carton Pallet
Specification 45*65*14 mm
Origin China
HS Code 8482102000
Production Capacity 1000000
Package Size 8.50cm * 8.50cm * 3.40cm
Package Gross Weight 0.160kg

Application Industries

Industry Typical Equipment
Automotive Transmission systems, Clutch assemblies, Steering mechanisms
General Machinery Hydraulic pumps, Press machines, Gearboxes
Industrial Manufacturing Conveyor systems, Machine tool spindles, Compressors

Stop Production Delays with Reliable 51105-51109 Thrust Ball Bearings

Many OEM manufacturers face frustrating setbacks when sourcing thrust ball bearings: gray-market channels risk counterfeit products that fail prematurely, causing unexpected downtime and safety hazards. Multi-layer distribution networks stretch lead times by 30-50%, making it nearly impossible to align with tight production schedules. Without proper technical support, even small specification errors can lead to costly equipment damage and increased maintenance costs.

Genuine Thrust Ball Bearings, In Stock and Ready for OEM Integration

As an official authorized NTN distributor, we provide 51105-51109 Thrust Ball Bearings that solve these challenges directly. Our ISO 9001:2008 certified three-level quality inspection system ensures each bearing meets strict performance standards, while full product traceability eliminates customs clearance obstacles and quality disputes. With WMS real-time inventory, we maintain stock availability for immediate fulfillment, supporting both small-batch trials and large-scale OEM production needs in automotive and machinery sectors.

Engineered for Axial Load Performance in Critical Applications

51105-51109 Thrust Ball Bearings excel in applications requiring efficient axial load handling. The single-row, separated design allows for easy installation and maintenance, while the 0° contact angle optimizes performance under pure thrust loads. With a specification of 45*65*14mm, these bearings are ideal for automotive transmission systems and machinery gearboxes where space constraints demand compact, high-strength components. The non-aligning structure ensures stable operation in fixed-shaft assemblies, delivering consistent performance even in high-vibration environments.

Technical Features That Ensure Long-Term Reliability

Our Thrust Ball Bearings incorporate critical engineering details that directly impact operational efficiency. The precision rating options (P0 to P2) allow customization for specific application requirements—P5 and P4 grades deliver tighter tolerances for high-speed machinery, while P0 provides cost-effective reliability for general use. Vibration classes Z1V1 to Z3V3 ensure quiet operation, with higher grades reducing noise and resonance in precision equipment. Constructed from high-quality bearing steel, these bearings offer excellent wear resistance, while the separated design simplifies lubrication maintenance, supporting both grease and oil lubrication methods for versatile application adaptability.

Total Cost of Ownership: Why Genuine Bearings Matter

Choosing genuine ISO9001 Certified Thrust Bearings over counterfeit alternatives significantly reduces long-term costs. Counterfeit bearings often fail within 30-50% of the expected service life, leading to production line shutdowns that can cost thousands in lost output. Our bearings, backed by NTN’s manufacturing expertise, provide predictable performance and longer intervals between replacements. The complete traceability documentation we provide not only ensures compliance with international export regulations but also simplifies quality control processes, reducing the risk of liability disputes. When factoring in maintenance labor, equipment repair, and production downtime, genuine bearings deliver a lower total cost of ownership despite a potentially higher initial price point.

Our Commitment to Your Production Success

With over 10 years of technical expertise and service across 50+ countries, we’ve built a reputation for reliability in the bearing supply chain. As an authorized distributor, we guarantee 100% genuine products with full traceability—each bearing can be tracked from manufacturing to delivery. Our dedicated technical team provides personalized support, from model selection based on working conditions to installation guidance and failure analysis. We maintain centralized inventory with real-time WMS tracking, ensuring 3-7 day delivery for most regions. For OEM partners, we offer flexible customization options and long-term supply agreements with reserved inventory, aligning our operations with your production scheduling needs.

Packaging & Shipping

  • Secure carton and pallet packaging to prevent damage during transit
  • Standard package dimensions: 8.50cm * 8.50cm * 3.40cm per unit
  • Global door-to-door logistics via DHL, FedEx, UPS, air freight, or sea freight
  • Real-time tracking provided for all shipments
  • Support for small-batch orders and large OEM quantities

Get Your 51105-51109 Thrust Ball Bearings Shipped Today

Don’t let bearing supply issues disrupt your production schedule. Send us your model requirements, application parameters, and order volume, and we’ll provide a formal quotation within 24 hours—including brand authorization and traceability certificates. With in-stock availability, we can fulfill urgent orders to minimize downtime, while our sample testing support ensures compatibility before full-scale deployment.

Frequently Asked Questions

Q: Are these bearings genuine NTN products?

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

Q: How can I confirm the 51109 bearing is suitable for my equipment?

A: Our technical team can assist with model verification. Provide your equipment model, operating conditions (load, speed, temperature), and application details for a free compatibility assessment.

Q: What is your warranty policy?

A: We adhere to NTN’s official warranty standards. All bearings are covered against manufacturing defects, with unconditional replacement or refund for verified quality issues.

Q: What is the minimum order quantity?

A: We accept orders starting from 1 unit, supporting both emergency maintenance needs and small-batch trials before full OEM production.

Q: How quickly can you ship after order confirmation?

A: In-stock bearings are typically shipped within 3-7 business

SECTION 12 / GET QUOTATION

Ready to Order
51105-51109?

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
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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