Patent ID: 8513173
Filing Date: 2013-08-20
Classification: C10M,C10N,F16C,Y10T

Abstract:
1. A ball joint comprising a metal ball stud and a synthetic resin seat, wherein said ball joint has a composition sealed therein, wherein said lubricant composition comprises: a 20 to 70 wt % base oil comprising a synthetic hydrocarbon oil selected from the group consisting of poly-α-olefin oil, oligomer of ethylene-α-olefin, and mixtures thereof; a 5 to 25 wt % thickener; and a 20 to 70 wt % fatty acid salt of a compound represented by the formula (1): wherein R wherein a coefficient of friction of said lubricant composition is 0.059 to 0.067 at −20° C.