A cylindrical device, containing three or more oblong ball circuits complete with a retainer to guide the balls in their proper path, specifically designed for use on sliding linear motion shafts to minimize friction and wear.
0.1571 inches minimum and 0.1575 inches maximum overall outside diameter, straight bore shape, rigid alignment type, mil-6085a mil spec single material response lubrication material document and classification, 0.1950 inches minimum and 0.1990 inches maximum overall length