×
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!
  • 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

Jobs

High Impact Resistant Polymer

High Impact Resistant Polymer

High Impact Resistant Polymer

(OP)
We have a shaft which moves around within the confines of a limit ring inside a large tank.

As the shaft rotates, it bends and jumps around due to deflection and the ring ensures it doesnt move to far. However the shaft and ring are getting some serious damage as they hit.

Are there any good high impact resistant (assume unfactored horizontal load of about 23kN) that will not wear away or chip off during operation.

Kind regards all,

RE: High Impact Resistant Polymer


If this is for a one-off, "machine it up" job, I would have thought Ultra-High Molecular Weight Polyethylene would do nicely. (UHMWPE for the acronym and your Google search)

Cheers

Harry

www.tynevalleyplastics.co.uk

RE: High Impact Resistant Polymer

You need a bearing in that location. You are essentially trying to create one, but it will not work if the shaft surface is rough or wobbling. A better approach would be a ball or roller bearing (or a sleeve bearing), perhaps mounted in a rubber bushing.

RE: High Impact Resistant Polymer

Or mounted in a spherical plane bearing/housing.

RE: High Impact Resistant Polymer

argeh.  Plain bearing?  I.e., not a roller bearing.  Ah forget it...

RE: High Impact Resistant Polymer


The surface of a sphere with an infinite diameter, I guess?

H

www.tynevalleyplastics.co.uk

RE: High Impact Resistant Polymer

Thanks Pud, that's right.  So there, Pat.

Some days you just need to go home and have a beer.  Yesterday was one of those.

RE: High Impact Resistant Polymer

I would check out a material called ORKOT or ORKOT equivalent. I would need to know your media, max load, and temp to insure this is a good recommendation.  Trelleborg the company that makes Orkot has long lead-times, if you need something fast try Hallite I think they offer a 552 which is very similar.   

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