With two applications this Bearing(30x40x25) is the most specified part.
The Screw 6x10 is the cheapest item from this partsfiche.
The twenty-eight Gsxr600 1998 (w) (e02 E04 E18 E22 E24 E25 E34 E39) Rear Swinging Arm component parts are all listed in this schematic.