CONSTANT VELOCITY JOINT FOR A DRIVING SHAFT, OUTER RACE AND INNER RACE THEREOF

摘要

The present invention has a technical subject of providing an outer race of a constant joint for a driving shaft improving abrasion resistance by maintaining maximum lubricant in a ball groove between an outer race and an inner race. For the same, the outer race of the constant joint for a driving shaft comprises a housing including a first ball groove including a ball inside; and a first lubrication maintaining groove formed on the surface of the first ball groove, and having a lubricant be injected and stay.