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✅ ISO 9001:2015 Certified · 100% Genuine NTN · Full Traceability
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608 Deep Groove Ball Bearing with Zz 2RS Seals for Automotive Machinery OEM Supply thumbnail 1
608 Deep Groove Ball Bearing with Zz 2RS Seals for Automotive Machinery OEM Supply - Side View thumbnail 2
608 Deep Groove Ball Bearing with Zz 2RS Seals for Automotive Machinery OEM Supply - Detail thumbnail 3
608 Deep Groove Ball Bearing with Zz 2RS Seals for Automotive Machinery OEM Supply - Dimension thumbnail 4
NTN GENUINE
IN STOCK
608 Deep Groove Ball Bearing with Zz 2RS Seals for Automotive Machinery OEM Supply
608 Deep Groove Ball Bearing with Zz 2RS Seals for Automotive Machinery OEM Supply - Side View
608 Deep Groove Ball Bearing with Zz 2RS Seals for Automotive Machinery OEM Supply - Detail
608 Deep Groove Ball Bearing with Zz 2RS Seals for Automotive Machinery OEM Supply - Dimension
Model
NTN-174
Origin
JAPAN
Lead Time
5-7 DAYS
NTN AUTHORIZED · OEM SUPPLIER

608 Deep Groove Ball Bearing with Zz 2RS Seals for Automotive Machinery OEM Supply

MODEL: NTN-174 100% Genuine · Traceable

Ensure seamless automotive machinery performance with our 608 deep groove ball bearing, engineered to eliminate downtime risks through precise radial load handling and reliable sealing options. Crafted from high-grade bearing steel with Zz/2RS seals, this 8mm bore solution maintains consistent lubrication in demanding industrial environments, directly addressing the challenges of maintaining production schedules with unstable component quality.Single-row design optimized for automotive machinery OEM integration, supporting smooth operation across temperature fluctuationsPrecision ratings from P0 to P4 available, ensuring compatibility with everything from standard assemblies to high-precision applicationsBacked by our ISO 9001-certified quality system and full product traceability, giving you confidence in every batch delivered

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 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 seamless automotive machinery performance with our 608 deep groove ball bearing, engineered to eliminate downtime risks through precise radial load handling and reliable sealing options. Crafted from high-grade bearing steel with Zz/2RS seals, this 8mm bore solution maintains consistent lubrication in demanding industrial environments, directly addressing the challenges of maintaining production schedules with unstable component quality.

  • Single-row design optimized for automotive machinery OEM integration, supporting smooth operation across temperature fluctuations
  • Precision ratings from P0 to P4 available, ensuring compatibility with everything from standard assemblies to high-precision applications
  • Backed by our ISO 9001-certified quality system and full product traceability, giving you confidence in every batch delivered

Description

Product Specifications

Parameter Details
Model NO. 608
Separated Unseparated
Rows Number Single
Load Direction Radial Bearing
Material Bearing Steel
Product Name 608 Deep Groove Ball Bearing
Bore Size 8 mm
Seals Type Zz 2RS Open
Lubrication Grease or Oil
Precision Rating P0 P6 P5 P4
Vibration Z1V1 Z2V2 Z3V3
Service OEM ODM
Transport Package Carton Pallet
Origin China
HS Code 8482102000

Application Industries

Industry Typical Equipment
Automotive Power windows, seat adjusters, cooling fans
General Machinery Small electric motors, conveyors, pumps
Industrial Manufacturing Packaging machinery, textile equipment, precision tools

Stop Production Delays with Reliable 608 Deep Groove Ball Bearings

OEM manufacturers know the cost of bearing failure—unplanned downtime, production line stoppages, and costly repairs. Gray market suppliers often deliver counterfeit 608 deep groove ball bearings with incomplete traceability, leading to customs issues and quality disputes. Multi-layer distribution channels stretch lead times by 30-50%, making it impossible to align with tight production schedules.

608 Deep Groove Ball Bearings: In Stock and Traceable

Our 608 deep groove ball bearings with Zz and 2RS seals solve these challenges. As an official NTN distributor with ISO 9001 certification, we ensure 100% genuine products with full traceability. Our WMS system maintains real-time inventory, so your order ships within 3-7 business days. The 8mm bore design fits seamlessly into automotive machinery and small motor applications, backed by a three-level quality inspection process.

Engineered for Demanding Automotive Machinery

This 608 bearing excels in radial load applications with operating speeds up to industry standards for small motors. The single-row design balances durability and compact size, making it ideal for tight spaces in automotive components. Whether handling continuous rotation in cooling fans or intermittent loads in seat adjusters, the bearing maintains consistent performance under varying temperatures and vibration levels.

Technical Features That Matter

The 608 deep groove ball bearing’s performance is defined by critical specifications. Bearing steel construction ensures high fatigue resistance, extending service life in repetitive motion applications. Seal options include Zz (metal shields) for high-temperature environments and 2RS (rubber seals) for superior contamination protection—reducing maintenance needs in dusty or moist conditions. Precision ratings from P0 to P4 allow customization for noise-sensitive applications like electric motor assemblies, while vibration classes Z1V1 to Z3V3 ensure smooth operation in precision machinery.

Why Genuine Bearings Lower Total Costs

Counterfeit 608 bearings may cost less upfront, but they often fail prematurely—costing 5-10 times more in downtime and repairs. Our genuine bearings, traceable to the original NTN supply chain, meet strict OEM quality standards. The ISO 9001 compliant inspection process eliminates defects that cause unexpected failures. By choosing authorized supply, you avoid customs delays from incomplete documentation and reduce liability risks from substandard components.

Our Commitment to Your Production Success

With over 10 years of technical expertise, we support clients in 50+ countries with more than just products. Our dedicated team provides application-specific model selection, installation guidance, and failure analysis—helping you avoid costly technical mistakes. We offer flexible OEM customization to match your exact specifications, and our long-term supply framework agreements ensure inventory reservation for stable production. Every order includes complete export documentation, from material certificates to HS code compliance, for smooth customs clearance.

Packaging & Shipping

  • Secure carton packaging with pallet reinforcement for bulk orders
  • 3-7 business day delivery for in-stock items
  • Global door-to-door logistics via DHL, FedEx, UPS, air, or sea freight
  • Real-time tracking number provided upon shipment
  • Minimum order quantity of 1 piece, supporting emergency repairs

Get Your 608 Bearing Order Started Today

Don’t let bearing issues slow your production. Send your 608 bearing requirements—including seal type, precision class, and quantity—and receive a formal quotation within 24 hours. Our sample testing and small-batch trial options let you verify quality before full-scale orders, ensuring perfect alignment with your manufacturing needs.

Frequently Asked Questions

Q: Are these genuine NTN 608 bearings?

A: Yes, we are an official NTN authorized distributor. Every 608 bearing comes with complete traceability documentation to confirm authenticity.

Q: How do I confirm if the 608 bearing fits my equipment?

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

Q: What is your warranty policy for 608 bearings?

A: We follow NTN’s original warranty standards, covering manufacturing defects with unconditional replacement.

Q: What is the minimum order quantity for 608 bearings?

A: We accept orders starting from 1 piece to support emergency maintenance needs.

Q: How quickly can you ship 608 bearings?

A: In-stock 608 bearings ship within 3-7 business days via your preferred logistics method.

Q: How can I verify the authenticity of my 608 bearing order?

A: Each bearing includes NTN’s original packaging with防伪标签, and we provide full traceability certificates upon request.

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-174?

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-17 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