Results 1 to 4 of 4

Thread: Quick question about ISO tolerances (H7)

  1. #1
    Associate Engineer
    Join Date
    May 2014
    Posts
    2

    Quick question about ISO tolerances (H7)

    Hello.
    I have this small issue.
    Will a 12 mm H7 hole fit with a 12 mm h7 shaft? To a degree where it is possible to mount by hand?
    Most places I see tolerances specified like H7/h6.

    Thank you beforehand

  2. #2
    Administrator Kelly Bramble's Avatar
    Join Date
    Feb 2011
    Location
    Bold Springs, GA
    Posts
    2,237
    I assume you are referring ISO 286-1 & 2?

    H7 tolerance for hole is +0 / - 0,018 mm

    h7 tolerance for shaft is +0,018 / -0 mm

    Mount by hand? Probably not...

    What is the application?

  3. #3
    Associate Engineer
    Join Date
    May 2014
    Posts
    2
    That's what I am reffering to.
    Yeah, I thought so.
    It is the shaft of a motor that has to fit into a pulley, unfortunately the tolerances are H7 and h7.

    Edit:
    I am also not interested in backlash of any kind, since I need to be able to control the setup with a precision of +/- 0,2 mm
    Last edited by repau; 05-14-2014 at 01:57 AM. Reason: Additional information

  4. #4
    Administrator Kelly Bramble's Avatar
    Join Date
    Feb 2011
    Location
    Bold Springs, GA
    Posts
    2,237

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •