Swing Arm Linkage Bearing Kit 27-1197Hands down, the most complete line of linkage bearing and seal kits! Kit contains all of the components required to properly rebuild the linkage bearing assembly. Needle bearing shafts are made with SCM415 42 bearing steel that has been hardened and precision ground. All metal bushings are case hardened and plated to prevent wear and corrosion. POM composite washer bearings replace thru needle washers, increase service life, and add superb resistance