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, 0.9995 inches minimum and 1.0010 inches maximum overall outside diameter, contact bearing seal type, mil-g-23827 mil spec single material response lubrication material document and classification