Firma Carl Freudenberg

Uwe Henrich

Gunter Ullrich

Herwig Honlinger

Rolf Drucktenhengst

G&uuml;nter Hintenlang

A seal arrangement for a shaft having a broad rpm range, supported in a housing, in particular for axle drives. A radial shaft seal, arranged in the housing bore hole, seals the shaft bearing space from loss of lubricant. A baffle plate, joined to the shaft, and having a lip seal, is aligned radially to the inside, which under the effect of centrifugal force lifts off from its sealing surface at higher rotational speeds of the shaft.

Seal arrangement

A device for sealing the annular gap between a housing and a shaft supported in the housing. The device comprises an inner ring, an outer ring, and an elastomeric sealing member joined to the outer ring. The sealing member has three sealing lips, of which only the first abuts, under prestressing, against the inner ring. The two other sealing lips are configured in such a way that, between their outer ends and the sections of the inner ring lying opposite to their outer ends, gaps are formed which act as a contact-free sealing. In addition, a gap may be provided between a radially extending annular disk portion of the sealing member and an outer flanged section of the inner ring axially opposite the annular disk portion. That gap and the gaps at the ends of the second and third sealing lips form a labyrinth seal.

Shaft sealing device

A torsional vibration damper having a substantially cup-shaped hub ring made from deep drawn sheet metal. The base of the hub ring has at least one orifice for mounting the damper to a machine part subject to torsional vibrations, the hub ring being joined by at least one spring element made of an elastomeric material - in a manner allowing relative rotation - to at least one inertial ring. The base is provided with an annular centering collar, extending in the axial direction, which fits around the outer periphery of the machine part in partial contact. The centering collar and the base are configured integrally and continuously with one another.

Growing community of inventors

Otzberg, Germany

Uwe Henrich