For the plant of similar name, see Ferula.
Look up ferrule in Wiktionary, the free dictionary.
A wire rope terminated with a thimble and a ferrule
Picco pipe with nickel silver ferrule
Non-circular ferrules holding bristles to brushes

A ferrule (a corruption of Latin viriola "small bracelet", under the influence of ferrum "iron") is any of a number of types of objects, generally used for fastening, joining, sealing or reinforcement. They are often narrow circular rings made from metal, or less commonly, plastic. Ferrules are also often referred to as eyelets or grommets within the manufacturing industry.[1]

Most ferrules consist of a circular clamp used to hold together and attach fibers, wires, or posts, generally by crimping, swaging, or otherwise deforming the ferrule to permanently tighten it onto the parts that it holds.


Reasons for use

Some of the reasons people use ferrules include:[4]


  1. "Ferrules & Eyelets". Trans-Matic Manufacturing, Inc. Retrieved 18 April 2014.
  2. US patent 5016970, Mito Ryo Nagase; Machida Juichi Noda & Tachikawa Etsuji Sugita, "Ferrule for optical fiber transmitting linearly polarized light and optical fiber connector using this ferrule", issued 1991-05-21 (download PDF)
  3. NIH search
  4. "Ferrules & Eyelets". Trans-Matic Manufacturing, Inc. Retrieved 18 April 2014.
This article is issued from Wikipedia - version of the 2/24/2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.