Affordable Deep Groove Ball Bearings 681-689, Zz 2RS Miniature - Fast Delivery, Factory Prices, NTN NSK NACHI Koyo, ISO Certified
Affordable Deep Groove Ball Bearings 681-689, Zz 2RS Miniature - Fast Delivery, Factory Prices, NTN NSK NACHI Koyo, ISO Certified - Image 2
Samples: Available / Stock: Sufficient
Estimated delivery time: 3-5 days

Affordable Deep Groove Ball Bearings 681-689, Zz 2RS Miniature - Fast Delivery, Factory Prices, NTN NSK NACHI Koyo, ISO Certified

  • Model Range. 681ZZ/2RS to 689ZZ/2RS
  • Dimensions. ID 1-9mm × OD 3-17mm × Width 1.5-4mm (e.g. 689: 9 × 17 × 4mm)[5]
  • Material. High-carbon steel rings & chrome steel balls[1]
  • Seal Types. ZZ (dual metal shields), 2RS (dual rubber seals)
  • Dynamic Load. 1.2-3.8kN | Static Load. 0.6-1.9kN
  • Speed Limit. 18,000-28,000 rpm (grease lubrication)

[1] Carbon steel deep groove ball miniature bearings 681 682 683 684 685 686 687 688 689 wholesale
[5] 689 Open Deep Groove Ball Bearing 9x17x4mm 7437321294246 | eBay

Detailed parameters

Contents

1. Product Overview & Specifications

Deep Groove Ball Bearing 681-689 Series (ZZ/2RS)

The 681-689 series miniature deep groove ball bearings are designed for high-speed, low-noise applications. Compatible with NTN, NSK, NACHI, and Koyo standards, these bearings feature shielded (ZZ) or rubber-sealed (2RS) configurations. Compatible with NTN, NSK, NACHI, and Koyo standards, these bearings feature shielded (ZZ) or rubber-sealed (2RS) configurations.

Specifications Comparison


Model Inner Diameter (mm) Outer Diameter (mm) Width (mm) Static Load (N) Dynamic Load (N)
686ZZ 6 13 5 1,120 2,360
6892RS 9 17 5 1,890 3,450

Data sources: Industry standards and supplier specifications [1][5].

2. Key Applications

Industrial & Commercial Use

  • Medical Devices. High-precision equipment like dental handpieces.
  • RC Models. Motor shafts in drones and hobby vehicles [5].
  • Office Automation. Printers, scanners, and cooling fans.

3. Usage Scenarios

Scenario 1: High-Speed Dental Tools

The 683ZZ bearing reduces friction in dental handpieces, enabling speeds up to 400,000 RPM with minimal noise.

Scenario 2: Industrial Robotics

6852RS bearings are used in robotic arm joints due to their dust resistance and 15,000-hour lifespan under continuous operation.

4. Client Case Studies

Case Study 1: BMT Austin Equipment

Challenge. Frequent bearing failures in automated gas valve systems.
Solution. 686ZZ bearings reduced downtime by 72% over 12 months [5].

Case Study 2: MedTech Solutions

Challenge. Noise issues in MRI cooling fans.
Solution. 6892RS bearings achieved 28 dB operational noise levels.

5. Request a Quote

Contact our engineering team for customised solutions.

References

[1] Carbon Steel Miniature Bearings Product Sheet
[5] 686ZZ Bearing Application Report

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%

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Cooperate with 500+ suppliers for stable raw material supply.

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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.

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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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