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  1. #1
    Join Date
    Mar 2010
    Posts
    621

    Will these bearings work?

    Will a THK bearing HSR20 fit on a THK SR20 460L (gk) rail?

    If not, can someone tell what the compatibility is for either and how to identify them.

    Many thanks

    Adam,

  2. #2
    Join Date
    May 2013
    Posts
    480

    Re: Will these bearings work?

    HSR and SR are not the same thing. hsr has the balls at 45 degree contact angle, sr has 2 at 90 degrees and two at 30 degrees. the sr rail looks sort of like a dovetail.

    as to how to identify them.. download the datasheets and read them before you buy... don't ask me how i've learned that..

  3. #3
    Join Date
    Mar 2010
    Posts
    621

    Re: Will these bearings work?

    Thanks for the reply.

    So the Bearing has to be an SR to match the rail or vice versa the rail has to be for an HSR bearing?

    Adam,
    Gecko G540, Rack and Pinion Drives-X and A axis, 1/2-10 5 Start Acme-Z Axis
    4-THK HSR 25 Linear Slides, KL23H2100-35-4B, Power Supply-KL-600-48 48V

  4. #4
    Join Date
    May 2013
    Posts
    480

    Re: Will these bearings work?

    no offense but does a square peg fit in a round hole?

    download the datasheets and look at the drawings.

  5. #5
    Join Date
    Mar 2010
    Posts
    621

    Re: Will these bearings work?

    I've already read the datasheet and since its not specifically clear to someone not familiar with the product lines I thought I would ask someone with experience.

    No need to reply if you don't know or don't want to clarify the datasheet.

    ..and no square pegs do not fit in round holes..

    Thanks,
    Gecko G540, Rack and Pinion Drives-X and A axis, 1/2-10 5 Start Acme-Z Axis
    4-THK HSR 25 Linear Slides, KL23H2100-35-4B, Power Supply-KL-600-48 48V

  6. #6
    Join Date
    Jun 2010
    Posts
    4256

    Re: Will these bearings work?

    no offense but does a square peg fit in a round hole?
    Of course it can. You just start with a slightly smaller square peg ...

    Cheers
    Roger

  7. #7
    Join Date
    Dec 2013
    Posts
    5717

    Re: Will these bearings work?

    Quote Originally Posted by RCaffin View Post
    no offense but does a square peg fit in a round hole?
    Of course it can. You just start with a slightly smaller square peg ...

    Cheers
    Roger

    Or a really big hammer
    Jim Dawson
    Sandy, Oregon, USA

  8. #8
    Join Date
    Mar 2010
    Posts
    621

    Re: Will these bearings work?

    Now that the discussion of pegs is out of the way...

    Can I assume from the sarcasm and insult that the simple answer is no they are no interchangeable?
    Gecko G540, Rack and Pinion Drives-X and A axis, 1/2-10 5 Start Acme-Z Axis
    4-THK HSR 25 Linear Slides, KL23H2100-35-4B, Power Supply-KL-600-48 48V

  9. #9
    Join Date
    Jun 2010
    Posts
    4256

    Re: Will these bearings work?

    You want US to download the data sheets and read them for you? Unlikely.

    Cheers
    Roger

  10. #10
    Join Date
    Apr 2004
    Posts
    733

    Re: Will these bearings work?

    The bearing carriage type has to match the rail type/width.

    A SR20 carriage only fits a SR20 rail.

    You cannot mix and match them.

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