Contact US

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.

Students Click Here

Wedge-lock / Nord-lock washer vibration creeping

Wedge-lock / Nord-lock washer vibration creeping

Wedge-lock / Nord-lock washer vibration creeping


We have a fixation for a locator pin which is subjected to high freq. (up to 500 Hz) vibration in line with SAE J2380. We chose a wedge-lock washer against vibration. However the washer has a larger inner diameter than required (M12 to M8, see below image). We are concerned about creepage due to vibration. Considering the fact that the wedge-lock washer locks onto the surfaces it sits on with its serrations (see below image), is there a risk for creepage and eventually loss of function for the washer?

RE: Wedge-lock / Nord-lock washer vibration creeping

I think the only way you will find out is to test it.
I think it will vibrate loose because the reduced surface area between the washer and nut face and given the fact that the thin part on which the washer digs into is an aluminium alloy,(which I picked up from your previous post relating to the locating pin) and to me means you won’t be able to tighten the nut to its full extent to get the best out of the configuration.

“Do not worry about your problems with mathematics, I assure you mine are far greater.” Albert Einstein

RE: Wedge-lock / Nord-lock washer vibration creeping

Just test it already.

RE: Wedge-lock / Nord-lock washer vibration creeping

Errr, why is this post any different from the one where you had a lot of replies.

If you need to create something similar then at least refer to the previous post so that we don't just repeat everything.

Looks identical to me?? https://www.eng-tips.com/viewthread.cfm?qid=495824

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.

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! Already a Member? Login


Low-Volume Rapid Injection Molding With 3D Printed Molds
Learn methods and guidelines for using stereolithography (SLA) 3D printed molds in the injection molding process to lower costs and lead time. Discover how this hybrid manufacturing process enables on-demand mold fabrication to quickly produce small batches of thermoplastic parts. Download Now
Design for Additive Manufacturing (DfAM)
Examine how the principles of DfAM upend many of the long-standing rules around manufacturability - allowing engineers and designers to place a part’s function at the center of their design considerations. Download Now
Taking Control of Engineering Documents
This ebook covers tips for creating and managing workflows, security best practices and protection of intellectual property, Cloud vs. on-premise software solutions, CAD file management, compliance, and more. Download Now

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