Rod ends consist of a spherical ball mounted in a housing, typically with male or female threads. They allow for oscillation/misalignment during slow rotation. Some rod end types require lubrication, and other types are maintenance free.
SIZJ, SAZJ, SIZP-S and SAZP-S Male and Female Series - Inch
SIJ, SAJ, SIBP-S, SABP-S, SI-C, SA-C, SIJK-C, SAJK-C, SI-ET-2RS, SA-ET-2RS Male and Female Series - Metric