Patent ID: 9670954
Date: 2017-06-06
CPC Classifications: F16C

Claim:
1. A ball joint member, including: an inner ring, with a general axisymmetrical shape around a first axis, comprising an external contact surface having a truncated spherical shape, the inner ring including a coating which bears the external contact surface; and an outer ring, of a general axisymmetrical shape around a second axis, comprising an internal contact surface mating said external contact surface, cooperating with said external contact surface, the outer ring including a coating which bears the internal contact surface, wherein at least one of the inner and outer rings comprises lubricant reservoirs made on the coating of one of the external and internal contact surfaces, and wherein the coating of the contact surface of one of the rings is a textured surface comprising a pattern of micro-cavities containing the lubricant and forming the lubricant reservoirs.