When using collars in power transmission systems, it is prudent to ensure they are firmly secured on the shaft. One of the methods of securing the collars is using set screws, also known as grab screws. Set screws are fasteners without heads but only have threaded shafts
. They are driven by an internal-wrenching drive like a star (Torx).
Set screws are made of hardened alloy steel, titanium, or aluminum, and hardened. When using the screws, the hardened design often leaves some minor plastic deformation, in the form of a semi-circular mark. This model has the benefit of increasing the collar’s holding power. However, it can result in corresponding high points in the shaft.
When selecting the set screws, it is also important to consider the tip. The most recommended options to use with shaft collars
are the flat and cup points. Other tip considerations include knurled cup points, cone point, and domed points. To see the full list of available set screws, make sure to visit our page.