Abstract: A seal assembly configured to seal a first machine part relative to a second machine part includes a sliding ring provided on the first machine part, the sliding ring having a sealing surface configured to slidingly abut a counter surface of the second machine part, and includes a clamping ring configured to exert a force on the sliding ring in a direction of the counter surface. The sliding ring includes a plurality of circumferentially spaced recesses in the seal surface that extend axially and radially into the sliding ring.

Abstract: A deposition system for depositing evaporated material on a substrate is described. The deposition system includes a vapor source having one or more vapor outlets; a shield; and a cooling device for cooling the shield, wherein the vapor source is movable to an idle position in which the one or more vapor outlets are directed toward the shield. Further, a deposition apparatus with a deposition system as well as a method of operating a deposition system are described.

Abstract: A seal assembly configured to seal a first machine part relative to a second machine part includes a sliding ring provided on the first machine part, the sliding ring having a sealing surface configured to slidingly abut a counter surface of the second machine part, and includes a clamping ring configured to exert a force on the sliding ring in a direction of the counter surface. The sliding ring includes a plurality of circumferentially spaced recesses in the seal surface that extend axially and radially into the sliding ring.

Abstract: This method is for replacing sealing elements on a rolling bearing assembly comprising a rotatable element, a fixed element, and at least one bearing mounted between the rotatable element and the fixed element, at least one used sealing element being rotatably fastened to at least one of the rotatable element and the fixed element and having at least one sealing lip adapted to lay on a first surface of the element with respect to which the used sealing element rotates. The method comprises a step of mounting at least one replacement sealing element so that at least one sealing lip of the replacement sealing element lays on a second surface of the element with respect to which the used sealing element and the replacement sealing element rotate, this second surface being located at a predetermined distance of the first surface.

Abstract: A rolling-element bearing having a diameter greater than 50 cm includes an inner ring, an outer ring, a plurality of rolling elements between the inner ring and the outer ring, and a seal ring. The seal ring is disposed on a surface of the inner ring or on a surface of the outer ring, and the outer ring or the inner ring includes a recess having at least one interior surface, and the seal ring extends into the recess. Either the seal ring does not contact the at least one interior wall of the recess or the seal ring includes a seal body and a seal lip and the seal body does not contact the at least one interior wall of the recess.

Abstract: A rolling-element bearing including a seal unit, the rolling-element bearing having at least one bearing ring and a further bearing ring tiltable with respect to the at least one bearing ring by a limited angle, and the seal unit having an at least part-ring shaped element attached to the bearing ring. The at least part-ring shaped element delimits a labyrinthine seal gap and corresponds to a first delimiting element, the rolling-element bearing further includes a second delimiting element and a third delimiting element, the third delimiting element being attached to a bearing cage, and the seal gap extends at least partially between the first delimiting element, the second delimiting element and the third delimiting element.

Abstract: Provided is an aircraft having a spherical body which generates buoyancy or which may generate buoyancy when filled with gas, wherein the aircraft further comprises four actuation units arranged on the surface of the body for movement of the aircraft in a translation and/or rotation through air, and at least one camera arranged on or in the surface of the body. Further provided is a method for providing optical information to a person in the environment of a flying aircraft, a method for providing optical information about an object and/or surveying of an object, a method for transmission of acoustic information and a method for observing or tracking an object.

Abstract: This method is for replacing sealing elements on a rolling bearing assembly comprising a rotatable element, a fixed element, and at least one bearing mounted between the rotatable element and the fixed element, at least one used sealing element being rotatably fastened to at least one of the rotatable element and the fixed element and having at least one sealing lip adapted to lay on a first surface of the element with respect to which the used sealing element rotates. The method comprises a step of mounting at least one replacement sealing element so that at least one sealing lip of the replacement sealing element lays on a second surface of the element with respect to which the used sealing element and the replacement sealing element rotate, this second surface being located at a predetermined distance of the first surface.

Abstract: A rolling shutter assembly including a plurality of interconnecting slats each having an elongated body with a top, bottom, and two sides. Connectors are affixed to the top and bottom of each slat, and a retainer member is attached to each side of each slat. The slats are connected to each other by the hooking together the connectors of the slats. The slats are placed within two tracks located on either side of an opening, and are movable between an open and closed position in between the two tracks. The tracks have retention ledges, contact material holders, and two chambers. In operation, the retention members attached to the slats come into contact with the retention ledges of the tracks when a force is applied to the shutter assembly, thereby preventing the slats from becoming dislodged from the tracks.