The lowest price component in this Swingarm parts-list fiche is the Dust Seal (40x7).
On this parts fiche the R/brg.tap N/com. is the most specified component.
A sample from the products for the Swingarm include: Dust Seal (40x7), Dust Seal (40x7), Seal Dust 24x40x5, Nut,rr.fork Pivot.