Selecting rod ends
Bore diameter and thread come first. Then the sliding or rolling system: rolling elements for speed and oscillation, VORBAL-Glide for contamination and no grease, steel-on-steel when relubrication is possible.
Check static and dynamic ratings against peak radial load, and tilt angle against misalignment in the linkage. Female-thread ends and clevises for pneumatic cylinders follow DIN ISO 8139.