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


Journal Bearing Sleeve Thickness

Journal Bearing Sleeve Thickness

Journal Bearing Sleeve Thickness

I am currently in the process of redesigning a butterfly valve system. I need to reduce the thickness of a journal type bearing sleeve from 3mm to 2mm.

Is there a rule of thumb/standard I need to adhere toward, Or is there a calculation I can use?

Thank you in advance,


RE: Journal Bearing Sleeve Thickness

Is it actually a hydrodynamic journal bearing, or just a bushing operating in boundary contact conditions? If it is the latter, the radial wall thickness of the bushing/sleeve should be sufficient to maintain any interference fit used to hold it in place. Unless the sleeve bore is large, and/or there is a large CTE mismatch between the housing bore and sleeve, then a 2mm wall thickness should provide sufficient radial stiffness to maintain a normal interference fit.

More details would be helpful.

RE: Journal Bearing Sleeve Thickness

As TBulena said way more info is needed.

Based on the precious little info I offer this -
For steel backed bearings with any of a variety of tasty overlays 2 mm for split inserts and 1.5 mm for 1 piece bushings gets it done in Nascar .
page 41 here -

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