1 / 12

Self-Locking Threaded Fasteners

Self-Locking Threaded Fasteners. Burke Jardine Michael Johnson Matthew Dalebout. Objective. To understand how self-locking fasteners work, what they are used for and where to find them. Self-Locking Threaded Fasteners Outline. Conventional Nut vs Self-Locking Threaded Fasteners Comparison

frances
Download Presentation

Self-Locking Threaded Fasteners

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Self-Locking Threaded Fasteners Burke Jardine Michael Johnson Matthew Dalebout

  2. Objective To understand how self-locking fasteners work, what they are used for and where to find them.

  3. Self-Locking Threaded Fasteners Outline • Conventional Nut vs Self-Locking Threaded Fasteners Comparison • Advantages • Applications • Vendors and Where to Find Them

  4. Standard Nut vs Self Locking Threaded Fastener Comparison: • Standard Nuts • Self Locking Threaded Fasteners

  5. Standard Nuts • Standard Nuts: • Relies on friction • between the nut surfaces.

  6. Vibration Thermal Effects Fatigue Stress Distribution Strain Deformation Insufficient Tightening Torque Frequent Servicing/High Use Problems with Standard Nuts Accidental Disassembly Due to:

  7. What are self-locking fasteners? Self Locking Threaded FastenersPrevent Accidental Disassembly by: • Preventing Fatigue • Resisting Vibration • Reducing Stress Concentration

  8. Vibration After Pre-Load

  9. Types of Self-Locking Fasteners • Mechanical • Increase contact friction • Increase interference fit • Compression • Modified threads • Chemical • Anaerobic

  10. Why do self-locking work? Example : Stress Distribution

  11. Where Are They Found and Who Sells Them? ANY HARDWARE STORE Stores selling over the WWW

  12. Additional Information www.parker.com/stratoflex/products/locking.asp www.boltscience.com/pages/vibloose.htm www.longlok.com www.jlanfranco.com/jl_products.php

More Related