In this schematic the "Bearing(17x24x20)" is used most often.
The most reasonably priced component used on the Rm85 2008 (k8) Usa (e03) Rear Swinging Arm is the Nut.
Parts such as the Rear Swinging Arm: Washer,chain Adjuster, Cover,swgarm Pivot, Shaft,rr Swingingarm Pivot, Buffer,chain Touch Defense are included in the Rm85 2008 (k8) Usa (e03) Rear Swinging Arm parts fiche.