An assembly consisting of a roller and stud used to effect a rolling contact with a cam, and convert the reciprocating or oscillating motion to linear motion.
grease lubrication material, 0.5260 inches minimum and 0.5310 inches maximum outer ring width, mil-g-23827 mil spec single material response lubrication material document and classification, 0.9995 inches minimum and 1.0010 inches maximum overall outside diameter, contact bearing seal type