Bearing linkages, also known as double-jointed bearings or “dog bones” (the latter due to their close resemblance to the tasty treats for our four-legged friends) are basically a combination of structural elements and joints that enable movement in various types of mechanical systems.

While there a number of options to choose from, plastic bearing linkages have some unique features and benefits that other solutions do not offer.
Whatever type of material, bearing linkages play a key role in the successful operation of devices in industries such as automotive, agriculture, material handling, packaging and medical. However, bearing linkages made of high-performance plastic blends are an especially cost-effective, easy-to-install option for almost any application.

Below are 6 little-known facts about plastic bearing linkages.

2. Easy to install with no assembly required

igubal® bearing linkages from igus® are manufactured as one piece, unlike steel linkages, which are typically five separate pieces.

Since they do not have to be assembled, igubal® bearing linkages are not only an out-of-the-box, easy-to-install solution, but also cost-effective.

4. Different materials available for every application

igubal® bearing linkages are available in up to 15 different plastic material blends*.

Each blend is specially formulated to fit the specific needs of an application. Whether high temperatures, heavy loads or other harsh elements are present, igus offers a plastic material that is ideal for the given environment.

igus® also offers a standard line of bearing linkages in five different ball materials, from stock.

6. Corrosion-resistant

Unlike metal or steel types, plastic bearing linkages are completely resistant to corrosion.

This makes them ideal for applications with excessive amounts of moisture, chemicals or sea water.