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  1. #1
    Hi guys,

    I see lots of you always mentioning Fred from BST as a good supplier, but when I compare price with Chai from linearmotionbearings2008 he's really cheaper. Does anyone know the difference between them?

    I ordered from Chai and noticed that Hiwin rails doesn't have the logo printed on it. What does that mean?

    Click image for larger version. 

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    thanks a lot!

  2. #2
    It means Chia's are not genuine Hi-win or could possibly be Hi-win Rejects.? Fred's rails and bearings are Genuine Hi-win with laser eteched markings. Infact the last batch I ordered from Fred came direct from Hi-win to me.

  3. #3
    Quote Originally Posted by JAZZCNC View Post
    It means Chia's are not genuine Hi-win or could possibly be Hi-win Rejects.? Fred's rails and bearings are Genuine Hi-win with laser eteched markings. Infact the last batch I ordered from Fred came direct from Hi-win to me.
    Thanks, here is a photo of mine. it really looks like to be Hiwin. The red protection is rubber. Is there a way to be sure that it's genuine or not?
    If they are rejected, it means that they have a quality issue, is it right?
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

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  4. #4
    Quote Originally Posted by BriceO View Post
    Is there a way to be sure that it's genuine or not?
    The manufacturer's markings, Simples! ;-)
    You think that's too expensive? You're not a Model Engineer are you? :D

  5. #5
    Quote Originally Posted by BriceO View Post
    Thanks, here is a photo of mine. it really looks like to be Hiwin. The red protection is rubber. Is there a way to be sure that it's genuine or not?
    If they are rejected, it means that they have a quality issue, is it right?
    I have some genuine ones purchased from HiWin, will post a photo of what they look like.
    https://emvioeng.com
    Machine tools and 3D printing supplies. Expanding constantly.

  6. #6
    Hi win rails have got the logo etched into the metal but it's really hard to see it sometimes. A strong lamp helps held at the right angle.

    Cheers
    Andrew

  7. #7
    This is what i recieved from Fred.

    Hope this helps

    Grtz Bert.

    Verstuurd vanaf mijn SM-A320FL met Tapatalk

  8. #8
    This is what you get with genuine carriages:

    The red covers I guess should be embossed and the part numbers laser etched.




    https://emvioeng.com
    Machine tools and 3D printing supplies. Expanding constantly.

  9. #9
    Quote Originally Posted by BriceO View Post
    Thanks, here is a photo of mine. it really looks like to be Hiwin. The red protection is rubber. Is there a way to be sure that it's genuine or not?
    If they are rejected, it means that they have a quality issue, is it right?
    They look ok to me but difficult to tell without having in your hands. The copies tend not to have any Hi-win markings at all, they just look the same.
    The etchings on the rails can sometimes be difficult to see and won't always be on short rails so check any longer rails you have.

  10. #10
    Thanks everyone, I'll check again to see if I miss something. Next time I'll order with Fred.
    I just noticed that the counterbore on the rails seems to be better on the Genuine (left) than mine.
    Click image for larger version. 

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    And what do you think about the Chai Ballscrew RM... anyone has already tried them?
    Click image for larger version. 

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