Patent attributes
A power transmission member for an electric power steering system, which connects a driving shaft and a driven shaft on the same axis to transmit power therebetween, includes: a first boss coupled to one of the driving shaft and the driven shaft and having a first receiving part that is formed in the central portion thereof and has a cylindrical shape; a second boss coupled to the other shaft and having a second receiving part that is formed in the central portion thereof and has a cylindrical shape; and an axial damper configured to elastically deform in the axial direction while opposite end portions thereof are inserted into the first and second receiving parts.