Affordable & Fast Delivery: NTN NSK NACHI Koyo Mini Ball Bearings 672-679, ZZ 2RS C3, Deep Groove, Factory Direct Prices - Pro Supplier
Affordable & Fast Delivery: NTN NSK NACHI Koyo Mini Ball Bearings 672-679, ZZ 2RS C3, Deep Groove, Factory Direct Prices - Pro Supplier - Image 2
Samples: Available / Stock: Sufficient
Estimated delivery time: 3-5 days

Affordable & Fast Delivery: NTN NSK NACHI Koyo Mini Ball Bearings 672-679, ZZ 2RS C3, Deep Groove, Factory Direct Prices - Pro Supplier

  • Models. 672zz, 673zz, 674zz, 675zz, 676zz, 678zz, 679zz, 2rs variants
  • Bore Diameter. 2mm-7mm (varies by model)
  • Outer Diameter. 5mm-19mm (varies by model)
  • Width. 2.3mm-6mm (varies by model)
  • Seal Type. ZZ (Metal Shield) / 2RS (Rubber Seal)
  • Clearance. C3 (Greater than normal radial clearance)
  • Material. Chrome Steel GCr15
  • Brand Compatibility. NTN, NSK, NACHI, Koyo specifications
  • Applications. Miniature motors, robotics, medical devices, precision instruments

Detailed parameters

Table of Contents

1. Product Specifications & Comparison

Mini Bearing Series 672-679 Key Parameters

Model Inner Diameter (mm) Outer Diameter (mm) Width (mm) Load Rating (Dynamic/Static) Seal Type
672 ZZ 2 5 2.3 0.32 kN / 0.11 kN Double Shielded (ZZ)
673 ZZ 3 6 2.5 0.45 kN / 0.16 kN Double Shielded (ZZ)
679 ZZ 4 7 2.8 0.67 kN / 0.24 kN Double Shielded (ZZ)

Key Features. C3 clearance for thermal expansion, 2RS/ZZ sealing options, compatible with NTN/NSK/NACHI/Koyo standards[1][3].

2. Detailed Applications

Core Industries Served

  • Precision Machinery. Robotics arms, CNC guideways.
  • Medical Devices. Dental drills, MRI scanner components.
  • Automotive. Electric vehicle cooling fans, transmission systems.

Optimized for high-speed (up to 30,000 rpm) and high-temperature (150°C max) environments [6].

3. Usage Scenarios

Scenario 1: Industrial Robotics

Model 675 ZZ reduces friction in 6-axis robot joints, improving positioning accuracy by 15%.

Scenario 2: HVAC Systems

678 2RS withstands humid environments in commercial air handlers, extending service life by 2x vs standard bearings.

4. Real Client Case Studies

Case 1: Automotive Tier-1 Supplier

Challenge. Premature failure in EV battery cooling fans.

Solution. 676 C3 bearings with grease optimized for 200°C operation.

Result. 0 field failures over 18 months.

Case 2: Aerospace Component Manufacturer

Challenge. Vibration in satellite positioning mechanisms.

Solution. 674 ZZ bearings with ABEC-5 precision grading.

Result. 98% noise reduction per ISO 1940-1 standards.

5. Procurement Guidance

Supplier Evaluation Checklist

Factor Critical Requirements
Certification ISO 9001, IATF 16949 for automotive
Lead Time ≤15 days for standard models
Testing Reports Radial play, endurance testing data

6. Contact for Inquiry

Email. info@vivalr.com
Phone. (86) 15866781826

Technical Support. Provide CAD models, lubrication guides, and failure analysis reports within 24hrs.

[1] Imported Japan NSK bearing 673 674 675 676 677 678 679 ZZ DDU high temperature high speed
[3] NSK imported bearings miniature small bearings 673 674 675 676 677 678 679ZZ Z*
[6] Deep groove ball bearing (a type of rolling bearing)-Wikipedia
[7] Comparison table of miniature bearing types and sizes

About the company

nbearing is a professional bearing firm. We offer top-notch bearing products globally. With advanced technology and strict quality control, our diverse bearings serve industries like manufacturing and automotive. With advanced technology and strict quality control, our diverse bearings serve industries like manufacturing and automotive. Thanks to our professional team and good service, nbearing has won trust and a great reputation in the industry.

Why Collaborate with NBearing? Eight Reasons for a Win - win Partnership

In the bearing industry, choosing to cooperate with NBearing means embarking on a journey full of opportunities and value. we become your ideal partner with numerous outstanding advantages.

Exceptional Quality

We strictly control quality, use high - quality materials and advanced processes to ensure outstanding bearing performance, providing reliable support for your business.

Diverse Range

Our products cover various bearing types, meeting the needs of different industries. One - stop procurement saves you time and effort.

Competitive Pricing

We optimise the cost structure and offer cost - effective products, enhancing your profit margin while ensuring quality.

Customisation Service

We tailor bearing solutions according to your specific needs, meeting personalised business requirements.

Efficient Production

Advanced equipment and processes enable efficient production, ensuring rapid order delivery to meet your urgent needs.

Punctual Delivery

With a 99.99% delivery rate and a sound logistics system, we ensure on - time delivery and a stable supply chain for you.

Professional Team

Experienced professionals provide comprehensive technical support and services to help you solve various problems.

Long - term Partnership

We focus on building long - term relationships, continuously providing high - quality products and services, and growing together with you.

Why Chem-iso's delivery rate is guaranteed to be 99.99%

500+

Cooperate with 500+ suppliers for stable raw material supply.

99%

99% automated production ensures on-time order completion.

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10 global warehousing centres enable efficient order response.

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Partner with 8 top logistics for punctual goods delivery.

Trusted By 3,500+ Creatives & Businesses

OxyNinja makes you & your clients happy.
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Join Hands with NBearing, Build a Distinguished Brand Together

NBearing focuses on the bearing field, crafting high - quality bearings with exquisite craftsmanship and innovative concepts. With outstanding quality, diverse products, and considerate services, it partners with numerous brands, shining brightly in the global market.
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Environmental Protection Science and Technology Park, Zhengfeng Road, High-tech Zone, Jinan City, Shandong Province
(86) 15866781826
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