There are two types of rod ends for hydraulics with weld able housing; both are available in steel/steel coupling.
The first type (T.A.C.), constructed in forged steel, provides for circular extremes,
a blunted welding at 45° that permits easy welding to the stem of the piston;
they are can be centered using a reference pin situated at the center of the support surface.
The spherical plain bearing is fixed axially in the mounting bore thanks to a border.
The second type (T.P.N.), constructed in forged steel up to a 50 mm. bore diameter and produced in laminated steel, presents extremes of welding in rectangular form, this particular facilitates notably the assembly on the bottoms of cylinders; using two rings for security the bearings are fixed axially in the mounting bore.