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1.5875mm 420 Miniature steel ball

    1.5875mm 420 Miniature steel ball

  • Brand Name : HRT
  • Place of Origin : Zhongshan China
  • Material: 4420 Stainless Steel

    Size: 1.5875mm

    Grade: G100

    Hardness: HRC50-55

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Product Detail

Material: 4420 Stainless Steel

Size: 1.5875mm

Grade: G100

Hardness: HRC50-55

Application: precision machinery, bearing, electrical equipment, household appliances... usually for anti-rust requiring part


As the name implies, miniature steel balls are smaller than 3/16" diameter are considered miniature. Miniature balls are produced by totally different methods than commercial bearing balls. These processes are so totally unique that during World War II, the Allies were unable to master the process. All of the miniature balls made by the Allies were made by grinding down conventionally produced commercial balls to the small diameters required.

3.175mm 440C Stainless steel ball

3.175mm 440C Stainless steel ball

Material: 440C Stainless SteelSize: 3.175mmGrade: G10~G100Hardness: HRC≧58Application: bearing, stamping parts, valve, 

ABOUT US

Our Steel Ball Factory mainly focuses on high precision miniature steel ball manufacture and development. High precision stainless steel ball, chrome steel ball, glass ball and plastic ball, especially the size range from 0.5mm to 6.0mm, the precision up to Grade 5, are the main products we engage in.