Threaded nuts must be secured against turning or axial displacement.
The torsion and axial locking is usually provided by the design, for example by fastening on the flange, axial or radial bores or by a form fit (for example a wrench surface). In the case of metallic threaded nuts and low torques, it is also conceivable to glue in threaded nuts; in the case of higher torques, nuts can also be welded.
With flange nuts made of plastic, the maximum tightening torque (2.5 Nm) of the fastening screws must be taken into account. Metallic press-fit sleeves are ideally used to achieve higher tightening torques. The use of liquid screw locking agents has also become established (for example Loctite 270 or Loctite 243).
In certain applications, the use of axially split threaded nuts may also be necessary or useful.
Before assembly, the nut should be lubricated if the material combination and the application require it.
When pulling the threaded nut onto the spindle, make sure that the spindle is cleanly deburred. A hand bevel makes assembly easier.
Ball screw nuts are usually supplied on an assembly sleeve. With KGT nuts, it is essential to ensure that the nut is not simply pulled from the spindle or assembly sleeve, as otherwise balls could fall out and the nut can no longer absorb the maximum forces.
junaspin is happy to help with the assembly and selection of your threaded nuts. Contact us.