Virtually every industry has some products and processes that produce vibration that can eventually disrupt or degrade their integrity and performance. If you’re concerned about vibration in your application, there are several countermeasures you can take to reduce or even eliminate the threat posed by vibration, including the use of:
- washers to increase the clamped length ratio
- high pressure washers and fasteners
High pressure washers and fasteners are specifically designed to counter vibration. These typically feature pre-installed nylon patches to absorb vibration and can be used for approximately five cycles of installation and removable before being considered compromised.
High pressure washers and fasteners include hex nuts with nylon inserts, jam nuts, lock nuts, slotted hex nuts, tooth lock washers, lock washers and spring washers. For applications that require both vibration resistance and sealing integrity under pressure, there are fasteners available featuring O-rings fitted in a groove underneath the bolt head to create a reliable seal.
You may also want to consider self-sealing, vibration-resistant washers for your project. Featuring a silicone rubber section, they are molded and bonded to a stainless steel formed washer that can help provide a positive seal under vacuum or pressure. They install just like a conventional fastener and are reusable and compatible with all surface finishes. The metal-to-metal contact ensures fastening integrity and are available with optional O-ring seal materials. These fasteners offer uniform, high-strength design and meet Military MIL-S-82496A spec for integral O-ring self-sealing machine screws.
Typical applications for high pressure washers and fasteners include a wide range of food industry and military uses and products such as fuel tanks, pressure gauges, gear/transmission boxes, valves, motor housings, instrument and communication gear housings, portable instruments, and any application where both fastening and sealing under pressure or in vibrating environments are required.