Belt masters only

Discussion in 'The Garage' started by parannoyed, Apr 5, 2019.

  1. parannoyed

    parannoyed When in doubt, mumble.

    Joined:
    Mar 22, 2012
    Oddometer:
    285
    Location:
    Westfield, PA
    Hey guys, found a broken belt on my dentist chair I use in the office.

    15545052939934313544127640288454.jpg

    I need to know how to buy the correct belt to replace it. Which measurements are the ones I need?

    Also are these things rated for stress? It mates to the big electric motor to lift clients up, and some of them will not be easy lifts.

    Any help would be great. It's old, no part number interchange that I can find and chair company name is M.I.A.
    #1
  2. gonerydin

    gonerydin Been here awhile

    Joined:
    Feb 14, 2012
    Oddometer:
    404
    Location:
    Iowa, USA
    #2
    SmittyBlackstone and parannoyed like this.
  3. parannoyed

    parannoyed When in doubt, mumble.

    Joined:
    Mar 22, 2012
    Oddometer:
    285
    Location:
    Westfield, PA
    Perfect, I wasn't sure where to measure the pitch. That link was a huge help. Thank you!
    #3
  4. Boomer343

    Boomer343 Been here awhile

    Joined:
    Apr 14, 2014
    Oddometer:
    695
    Location:
    Calgary
    Shouldn't be too hard to find, just a cogged belt. I assume there isn't a portion missing and it just split.

    Take a look at this video

    The video is from Gates, more than likely they have one.
    #4
  5. parannoyed

    parannoyed When in doubt, mumble.

    Joined:
    Mar 22, 2012
    Oddometer:
    285
    Location:
    Westfield, PA
    Thanks, I think I did find the right belt. I appreciate the help.
    #5
  6. Beezer

    Beezer Long timer Supporter

    Joined:
    Oct 26, 2004
    Oddometer:
    9,019
    Location:
    Anchorage, formerly Spenard (hub of the universe)
    must be one hell of a drill.........
    #6
    SmittyBlackstone likes this.
  7. parannoyed

    parannoyed When in doubt, mumble.

    Joined:
    Mar 22, 2012
    Oddometer:
    285
    Location:
    Westfield, PA
    LOL I wish. They wouldn't give me the fun attachments with the chair.
    #7
    Beezer and SmittyBlackstone like this.
  8. katbeanz

    katbeanz earthbound misfit, I

    Joined:
    Feb 12, 2005
    Oddometer:
    9,381
    Location:
    Kansas City
    The curvi-linear we always called poly drive, but those and the timing belts will stretch a bit after they've ran a while. There's probably a formula for tension at the Gates link, but as a rule of thumb if there's reasonable distance between the sheaves, (lock out tag out) grab the belt mid span and if you can twist it 90 degrees by hand with a moderate amount of force it's about right. Too tight puts too much load on bearings, and too loose it may skip a bit, shuck off some teeth and break. They deteriorate with age, just like me. :D
    #8
    parannoyed likes this.
  9. cagiva549

    cagiva549 whats a cagiva

    Joined:
    Oct 10, 2004
    Oddometer:
    5,919
    Location:
    Cypress Tx
    Number on the back should be all you need , if its not some obscure foreign brand any power supply house can cross it over to their brand .
    #9
  10. kantuckid

    kantuckid Long timer

    Joined:
    Nov 29, 2007
    Oddometer:
    8,335
    Location:
    Kentucky-Eastern that is!
    Dentists that do wrenching on "the chair":rofl? Whats next?
    I go to a dental college for my own work U of KY) and hear the stories about costs of private practice equipment as one more layer of debt.
    Before I started getting my work done at the school, some years and many students ago, ALL my street dentists had an airplane & an exotic car and a set of clubs,etc.. Well, except the last one who had a bass boat and real conservative.
    #10