In the internal thread rod end bearing, its thread, there is a left and right spin points. Moreover, in these two specific directions of rotation, its impact is not the same, and will affect the use of bearings. As for the bearing lubrication, whether it is left-handed or right-handed, are the same.
The internal thread rod end of the swing, which in determining the factors, mainly for the bearing type and material used, because it is up to them. Moreover, as long as there is one of them is not the same, then it will affect the amplitude of the bearing swing.
The internal thread rod end fisheye hole fixed, is: in the middle of the coarse place to install the fish-eye hole, and fine places at both ends, it is to install the components to be driven. When all are installed, use nuts to fix, to prevent loosening and other issues, thereby affecting the installation and use of fish-eye hole effect.