Results 1 to 2 of 2

Thread: BS-8888 Concentricity on turned parts

  1. #1
    Associate Engineer
    Join Date
    Feb 2021
    Posts
    1

    BS-8888 Concentricity on turned parts

    Hello.
    I am trying to locate in BS-8888 what is the geometric tolerance for concentricity (cylinder+tap hole) on turned parts.

    Could anyone help?

    Thank you in advance.

  2. #2
    Administrator Kelly Bramble's Avatar
    Join Date
    Feb 2011
    Location
    Bold Springs, GA
    Posts
    2,418
    BS8888 does not provide specific guidance on concentricity tolerance however paragraph 9.1 - 9.3, general tolerances does suggest the usage of BS EN 22768-1 also known as ISO 2768-1 for general tolerances.


    BS8888 is a drafting as well as dimensioning and tolerancing standard.


    Specific tolerances, whether ISO 2768 or otherwise are designed by the engineering drawing creator ~ engineer or designer.


    Here's a webpage with ISO 2768 general tolerances:

    https://www.engineersedge.com/mechan...tolerance_.htm
    Tell me and I forget. Teach me and I remember. Involve me and I learn.

Posting Permissions

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