INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Jobs

Air spring failure-vertical cracks

Air spring failure-vertical cracks

(OP)
Hi,
Our heavy truck cab suspension air springs are failing with vertical cracks, as shown at attached photo.
Horizontal cracks are result of fatigue. However supplier hasn’t found root cause and solution yet. Fatigue test is running again but failure can not be replicated at lab test.
We repeated ozone test with small air rubber specimen, similar issue can ne be replicated neither.
There is no rubbing.
I will be appreciated if you can share your comments.

Thanks

RE: Air spring failure-vertical cracks

Looks like dry rot to me. They either aren't seeing enough use, or if they are, the rubber formulation needs alterations.

RE: Air spring failure-vertical cracks

May wish to take a look at proximity to any exhaust components as well.

RE: Air spring failure-vertical cracks

It seems that the rubber was cooked and cracked. Mr168 might be right, a heat source was around.

RE: Air spring failure-vertical cracks

Choice of materials. What is the material? And how does it compare to other air bag manufactures? Country of origin etc.

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources


Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close