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!
  • Students Click Here

*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.

Students Click Here


Bearing Failure Causes.

Bearing Failure Causes.

Bearing Failure Causes.


Attached are a photo of a self lubricated journal bearing installed on the drive end of a centrifugal pump driven by 5.5kv


The bearing failed after being heated up then the temeprature transmitter sent a high temperature alarm(setting alarm: 85 C).

I would be grateful if you could help me on finding the bearing failure causes based on the attached photos by interpreting

the impacts on it. Please note that only the lower half of the bearing which was affected.

Thank you.

RE: Bearing Failure Causes.

Unless I'm looking at photographic artifacts, I'd guess severe misalignment, as in being installed without the hollow dowels around the retaining bolts.

Mike Halloran
Pembroke Pines, FL, USA

RE: Bearing Failure Causes.


I would inform you that the bearing bolts were equipped with hollow dowels but not shown on the attached picture above.


RE: Bearing Failure Causes.

Well, I don't have another way to explain the apparent asymmetry.

... except that maybe something got bent.

... like the narrative about what really happened, while on its way to you.

Mike Halloran
Pembroke Pines, FL, USA

RE: Bearing Failure Causes.

Thank you for your cooperation.

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!


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