Thanks for visiting us!

Badminton Central is a free community for fans of badminton! If you find anything useful here please consider registering to see more content and get involved with our great community users, it takes less than 15 seconds! Everybody is welcome here.

Click here for a FREE account!

New Grommets

Discussion in 'Badminton Stringing Techniques & Tools' started by toomanyracquets, Mar 20, 2010.

  1. blableblibloblu

    blableblibloblu Regular Member

    Joined:
    Mar 27, 2011
    Messages:
    345
    Likes Received:
    0
    Occupation:
    student
    Location:
    Canada
    sorry for reviving this thread but I have some things to ask

    I'm about to get grommets from mbs (just buying two types and shorten them if needed) and a lot of you have been talking about type A and C, but I was wondering which are the MBS equivalents because the types available there are B,C,E,F,I
    looking at the diameters, I assumed it would be type C and I but I just want to make sure
     
  2. _Rav_

    _Rav_ Regular Member

    Joined:
    Oct 26, 2010
    Messages:
    183
    Likes Received:
    0
    Occupation:
    Gofer
    Location:
    UK
    On this subject, how tight should grommets be? I have the smallest ones from W&D (2.1mm iirc) and on yonex frames they are really hard to push in all the way, to the point that i sometimes have to shave a little bit off the grommet to get them to fit.

    The last time i strung a YY frame i had to replace all of the single pass grommets, and after stringing they've pulled out a little, so that the flange isn't flush with the frame, so i'm going to have to restring and push them in more somehow.
     
  3. dunmaster

    dunmaster Regular Member

    Joined:
    Sep 21, 2008
    Messages:
    532
    Likes Received:
    0
    Location:
    California
    "A" has a diameter of 2.1 mm, and "C" is 2.6 mm. These two are the most common ones. Not sure the equivalent from MBS, but you can use that to compare.
     
  4. blableblibloblu

    blableblibloblu Regular Member

    Joined:
    Mar 27, 2011
    Messages:
    345
    Likes Received:
    0
    Occupation:
    student
    Location:
    Canada
    thank you very much, this confirms that I on MBS is like A
     
  5. kwun

    kwun Administrator

    Joined:
    Apr 24, 2002
    Messages:
    39,267
    Likes Received:
    540
    Occupation:
    BC Janitor
    Location:
    Santa Clara, CA, USA
    they are usually from very snug to quite tight. but never so tight that it requires either a tool or shaving to make them fit.

    in other words, they are the right fit if:

    - it is not so loose that it falls out on its own, and
    - you can push it into the grommet hole with bare hands (without hurting yourself)
     
  6. _Rav_

    _Rav_ Regular Member

    Joined:
    Oct 26, 2010
    Messages:
    183
    Likes Received:
    0
    Occupation:
    Gofer
    Location:
    UK
    Hmm, i definately can't get them in with only my fingers, need at least the handle of an awl, but it's only on yonex frames it would seem. I also noticed on the grommets 4 bits that stick out a little, i woder if they're supposed to squash down when the grommet is inserted?

    Unless YY frames need smaller grommets than others, or this batch i have were made a little too big i'm at a loss.
     
  7. kwun

    kwun Administrator

    Joined:
    Apr 24, 2002
    Messages:
    39,267
    Likes Received:
    540
    Occupation:
    BC Janitor
    Location:
    Santa Clara, CA, USA
    an experiment to do would be try take out the neighboring original Yonex grommet and see if they also fit so tightly. and then on top of that, measure their size if you have the appropriate caliper to do so.
     
  8. _Rav_

    _Rav_ Regular Member

    Joined:
    Oct 26, 2010
    Messages:
    183
    Likes Received:
    0
    Occupation:
    Gofer
    Location:
    UK
    Ok, i measured one of the removed yonex grommets with a digital caliper at between 2.06 and 2.09mm depending on how hard i gripped it. The new ones rated at 2.1mm (from W&D Strings) come out to exactly 2.1mm ... but here's the kicker, they've got these little veins that put it up to about 2.2mm:

    grommet.jpg

    I'm guessing that they are designed to squish down into themselves to make them more secure in the frame?
     
  9. kwun

    kwun Administrator

    Joined:
    Apr 24, 2002
    Messages:
    39,267
    Likes Received:
    540
    Occupation:
    BC Janitor
    Location:
    Santa Clara, CA, USA
    yeah. it looks like it.

    but it does look like Yonex's grommet are less than 2.1mm.

    i have noticed that with recent Yonex rackets with single pass grommets hole, it does take some effort to insert the MBS grommets into the hole. i will measure the size of the MBS grommets when i get home tonight.
     
  10. kwun

    kwun Administrator

    Joined:
    Apr 24, 2002
    Messages:
    39,267
    Likes Received:
    540
    Occupation:
    BC Janitor
    Location:
    Santa Clara, CA, USA
    i have two types of grommet that i got from MBS.

    they measure 2.55mm and 2.09mm
     

Share This Page