×
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

What value conventional lockwashers?

What value conventional lockwashers?

What value conventional lockwashers?

(OP)
Folks-
I'm still trying to gather data on this.  Does any one have test data or references showing how conventional (helical-split, internal tooth, and external tooth) lock washers hold up under vibration and/or shock?

Tunalover

RE: What value conventional lockwashers?

Look at pages 11 & 12 of following site. Their take are that lock waskers are useless, while some locking for internal/external locks but can damage material.
http://gltrs.grc.nasa.gov/reports/1990/RP-1228.pdf

RE: What value conventional lockwashers?

Agree they are one of the worst methods to maintain torque undevibratory loading.

RE: What value conventional lockwashers?

<rant mode on>

The purpose of any threaded fastener "locking" method is not to "maintain torque".  After you stop twisting the nut or head of the screw the torque goes essentially to zero.

The goal is to maintain a desired level of tension in the fastener.

Far too many engineers use "torque" when they should use "preload".

<rant mode off>

Nothing personal Boo, just a pet peeve of mine.

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