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Thread: hiwin stainless balls

  1. #1
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    Default hiwin stainless balls

    Hi!
    I'm Siro From Italy.

    I'm building my own CNC.

    I need help to find stainless balls replacement for my 4 HGW20 Hiwin.

    Someone can confirm the balls size? They should be 3,969mm or 5/32''

    Please Help me!

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  2. #2
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    Default Re: hiwin stainless balls

    Why do you want to use stainless steel for the bearing balls? If you're using standard linear rail it's still made from En31/52100 or similar material and can corrode. 440C balls are a good choice if you need stainless properties, be sure to use Grade 25, lower precision grades may not give the accuracy or wear life you want.

    5/32" 440C Gr25 balls are available from many USA suppliers, a quick web search will find them. Be sure they will ship overseas.



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