Results 1 to 4 of 4

Thread: tainless Steel or 4140

  1. #1
    Join Date
    Mar 2007
    Location
    Newcastle Australia
    Posts
    17

    Default tainless Steel or 4140

    I need to make some sleeves that press fit onto aluminium spacers, the sleeves give a hard wearing surface to the spacers where a oil seal runs.
    I have made these in the past out of 4140, but it has been suggested I use Stainless Steel.
    But I think 4140 has a higher hardness, and there for better wear properties.

    any thoughts
    Lathe - Hafco AL320
    Mill/Drill - Toolex RF31

  2. #2
    Join Date
    Jan 2007
    Posts
    112

    Default

    I have more trouble with stainless galling up 4140 can go to about 40-45 RC with out getting too weird but has more of a tendency to crack if harder or you could go a 400 seris stainlees and heat treat

  3. #3
    Join Date
    Apr 2001
    Location
    Maine
    Posts
    6,682

    Default

    What was the rationale for using stainless steel? Unless you need to solve a corrosion problem of some kind, I don't see the point.
    ----------
    Try to make a living, not a killing. -- Utah Phillips
    Don't believe everything you know. -- Bumper sticker
    Everybody is ignorant, only on different subjects. -- Will Rogers
    There are lots of people who mistake their imagination for their memory. - Josh Billings
    Law of Logical Argument - Anything is possible if you don't know what you are talking about.

  4. #4
    Join Date
    Mar 2007
    Location
    Newcastle Australia
    Posts
    17

    Default

    thanx for the feedback,
    the spacers are rear axle spacers on an enduro bike.
    the grit etc gets under the lip of the seal and gouges the aluminium, hence the need for a wear ring. they are approx 30mm diameter.

    and yes I'm think the Stainless was suggested for corrosion resistance
    Lathe - Hafco AL320
    Mill/Drill - Toolex RF31

Posting Permissions

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