Blog - What types of eyes should my extension springs have?
What types of eyes should my extension springs have?
The ends of extension springs are eyes. The eyes of extension springs are important for the suspension and the use of the extension spring. Choosing the right eyelet for the extension spring is important to ensure the installation size and the forces.
Extension springs with full German eyes
At TEVEMA we supply the standard extension springs with full German eyes. These eyes are also known as machine hooks. The standard eyes on the extension spring are produced next to the extension spring. The eyes of the extension springs are placed in the middle of the extension spring.
Extension springs with half German eyes
For extension springs with half German eyes, the eyes are closer to the body of the extension spring. This reduces the installation size of the extension spring.
Extension springs with double German eyes
Extension springs with double German eyes are made to give the eyes extra strength. This is especially suitable for applications where extra security is needed to ensure that the eyes of the extension springs are able to maintain the tensile strength.
Extension springs with full German eyes on the side
Extension springs with full German eyes placed on the side, are suitable for applications where the installation size does not allow the eyes to be placed on the body. In the case of extension springs with eyes on the side, the attachment points are placed on the sides of an extension spring.
Extension springs with double German eyes on the side
Extension springs with German eyes on the side combine the security of the double German eyes with the reduced installation size of the German eyes on the side. If there is enough space on the sides of the extension spring to place an extra winding on the eyelet, the double German eyelet is an option.
Extension springs with hook eyes
Extension springs with hook eyes are suitable to work around an object, and to attach the extension spring behind obstacles. The length of the hook is made to order to make the attachment meet the requirements. Furthermore, the extension spring with hook can also have a different eye diameter than the extension spring has.
Extension springs with hook eyes on the side
If the space is so limited that it takes up too much space with a normal hook, TEVEMA can also provide extension springs with hooks on the sides. The advantage is that the hook is utilised and that the installation size is reduced because the hook is attached on the side.
Extension springs with English eyes
Extension springs with English eyes are made from the final windings of the technical spring. The windings of the extension spring are curved straight down in the middle of the spring, after which it turns to create a round eyelet, this treatment provides a stable hook.
Extension springs with the hook eyelet screwed
Extension springs with a screwed hook have the unique ability to accommodate a dynamic process on the hooks, where the extension spring does not rotate. This is ideal for applications where extension springs are attached to moving parts on both sides. The last coils of the extension spring are rotated closer together to attach the screwed hook.
Extension springs without eyes
Extension springs without eyes are usually attached by means of a prop and bolt. This is mainly done by anchoring the prop in an extension spring. A thread is tapped into the prop to which the bolt or threaded rod is attached.
Order extension springs with eyes
As a spring supplier, TEVEMA can produce all extension springs with eyes. For most applications, extension springs with full German eyes are sufficient, all our standard springs are equipped with German eyes. If you need a custom-made extension spring, or a standard extension spring with a different kind of eyes, simply request it by filling out the form for custom-made springs.