Your result

Capacite de blocage

0

Reutilisable

4

Securite opertateur

4

Cout d’acquisition

Bas

Cout global

Elevé

SCALE:    0 = Ne s’applique pas  1 = Inadapte   5 = Adapte

How did we calculate?

Are plain washers effective
against bolt loosening?

Les rondelles plates sont les plus courantes. Elles n’ont pas de fonction de verrouillage et sont plutôt utilisées pour protéger la surface de contact ; et ce en augmentant la surface afin de répartir la charge, notamment sur les matériaux tendres ou sur les trous larges ou fendus. Les rondelles plates sont installées entre l’écrou/la tête de vis et la surface de contact. L’assemblage est donc serré de la même façon qu’un assemblage non sécurisé.

Scroll down to access the eBook "Why do bolts loosen?"
(A comparison between common bolt securing options)

Do you experience bolt loosening? Plain washers have no locking function!

Le plus grand défi pour un assemblage boulonné, entrainant sa perte de précharge et sa défaillance, est le desserrage spontané. Vibrations are everywhere.


This test shows how all 3 unsecured joints all rotated loose. A steep decline in the graph indicates a failure.

This Junker test shows how all 3 unsecured joints all rotated loose!

(The Junker test is the most severe vibration test for bolted connections. The bolted joint is exposed to transverse movements underneath the bolt head or nut, while the clamping force is continuously measured.) 
The effectiveness of different locking methods can easily be compared.

 

 

Talk about bolting challenges with us!

Do you need guidance choosing the best bolt securing solution for your application? Let our bolting experts guide you.

Pour plus d’informations sur la façon dont nous traitons vos coordonnées, veuillez consulter notre Charte de confidentialité.

Merci!

Which bolt locking product should I use?

  • Pros & Cons of different bolt locking methods
  • A Guidance for Selection, to help you decide which product to use in your applications

Get the free eBook

To read more on how we handle your contact details please see our Privacy Policy.

Thank you! Your eBook is on the way to your mailbox.