Abstract: A mechanical face seal including a primary ring which is axially movably mounted, and a mating ring (3, 3?, 3?), wherein the primary ring and a mating ring each comprise adjoining sealing surfaces. The primary ring is pressed by a spring against the mating ring. The spring has a bellows-like shape. The spring is made out of an elastomer. The mechanical face seal achieves a small installation space for a mechanical face seal.

Abstract: An arrangement of a shaft with a slip-ring seal mounted thereon is disclosed. The slip-ring seal (3) comprises a pair of cooperating slip rings (4,5), the sealing faces of which define a sealing gap (6) between them. One of the slip rings is mounted on the shaft (2) with torque transmission from a drive element (9) mounted on the shaft, whilst the other slip ring is provided for fixed mounting on a stationary component. The arrangement is characterised in that the drive element (9) comprises a tubular drive housing (11), extending over the external circumference of the slip ring (4) with a radial gap (12) and a passage (13) for introduction of a flow medium is provided, opening out at one end in a chamber (A), defined by the drive housing (11), which drains out through the radial gap (12), whereby the radial gap forms a flow path for the flow medium which terminates at or near the sealing gap (6).

Abstract: An arrangement of a shaft with a slip-ring seal mounted thereon is disclosed. The slip-ring seal (3) comprises a pair of cooperating slip rings (4,5), the sealing faces of which define a sealing gap (6) between them. One of the slip rings is mounted on the shaft (2) with torque transmission from a drive element (9) mounted on the shaft, whilst the other slip ring is provided for fixed mounting on a stationary component. The arrangement is characterised in that the drive element (9) comprises a tubular drive housing (11), extending over the external circumference of the slip ring (4) with a radial gap (12) and a passage (13) for introduction of a flow medium is provided, opening out at one end in a chamber (A), defined by the drive housing (11), which drains out through the radial gap (12), whereby the radial gap forms a flow path for the flow medium which terminates at or near the sealing gap (6).