Seal carriers DRS are complete sealing kits that are screwed onto the outer ring of the needle-axial cylindrical roller bearings ZARF(L). They are precisely centered there and seal the bearings from the outside. Using the axially or radially lockable precision locknuts AM, ZM, ZMA, the bearings for threaded drives are defined and axially preloaded. They are also used when high axial forces must be transmitted as well as when high running accuracy and stiffness are required.