Replacement bearing assembly for cutting disk skid plate. For use with models 310, 315, 315X, 415X, 430X, 430XH, 435X, 450X, 450XH, 520, 520H, 535AWD, 550, 550H, 450X EPOS, 450XH EPOS, 550EPOS, & 550h EPOS Automowers
 
Video: How to remove & replace this part