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Quick Details

  • Place of Origin: Zhejiang, China (Mainland)
  • Type: Ceramic Balls
  • Application: Industrial Ceramic
  • Model Number: 3.969 ZrO2 Ceramic balls
  • Brand Name: Kingsk8
  • Color: White
  • Size: 3.969 mm
  • Density: 6 g/cm3
  • Max working temperature: Up to +400°C
  • Applicable: Not for high speed bearings

Packaging & Delivery

Delivery Time Ship within 5-7 business days after receiving cleared payment

Kingsk8 Ceramic Zirconia (ZrO2)  Balls




1) Density 6 g/cm3
2) Good wearability
3) Max working temperature up to +400°C
4) High hardness Hv 1200
5) Nonmagnetic
6) Electrical isolating
7) Self-lubricating
8) Excellenct corrosion resistance
9) Not applicable for high speed bearings



About Kingsk8


A brief history of who we are, where we have come from, and why we continue to make the best skateboard bearings on the market. kingsk8 bearings was started by Edwin Tan in 2010, Edwin started in the bearings industry over 25 years ago managing production of the top bearings companies in the 90’s such as NSK Bearings,FAG Bearings,HFJ Bearings etc, He begin to manage production of the Bonnes bearings since 2002.


Edwin’s background of high quantity and top quality skateboard bearings never was in question but after years of running production and everything else on the manufacturing side Edwin decided it was time to do it his way. kingsk8 was born out of this desire to provide the best bearings and the best service to everyone who wanted.


kingsk8 started manufacturing highest quality bearings for many of the top companies and distributions right from the start. we need not only to use the best materials but also to use the best processes and technologies. we offer our customers a variety of options of skateboard bearings.With over 20 years in the known bearings industry and known brand skateboard bearings industry, there is no other company that can handle the volume with the quality of kingsk8 Bearings. We custom made for whatever your needs should be. kingsk8 bearings has and will continue to manufacture and create only the top made skateboard bearings on the market today.


From our testing of bearings and our years of experience designing bearings for skateboarding, we know that how to make the best skatebaord bearings, and how to custom made just for your brand skate bearings. 


kingsk8 have been completely redesigned for skateboarding from the ground up and are built to skate specifications that include bearing components, lubricants, tolerances and clearances.so it roll faster and last longer than other bearings. 






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China (Mainland) | Manufacturer
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25 Transactions 100,000+
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Supplier's Trade Assurance Limit: US $155,000
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