The present invention relates to a gasket (1, 1′, 1″) for sealing a drive shaft of a pulp washer, the gasket comprising a gasket body (10) having a central opening delimited by an inner edge (21) and the gasket body (10) also having an outer edge (22), wherein the gasket (10) further comprises a cut-in portion (30) that extends from the outer edge (22) in a radial direction inwards into the gasket body (10).

The invention also relates to a pulp washer comprising at least one such gasket and to a method for mounting such a gasket on a drive shaft of a pulp washer.

A seal arrangement for sealing a gap between a machine element comprising a shaft and a housing includes: at least one sealing element formed, at least partially, from polymeric material. The at least one sealing element is of annular design and is made of PTFE. The at least one sealing element has at least one first annular element and at least one second annular element. The at least one first element is electrically conductive and the at least one second element is electrically insulating. The at least one first element is arranged axially adjacently to the at least one second element. The at least one sealing element is provided with electrically conductive contact elements. The housing has an installation space forming an annular groove for the at least one sealing element. The installation space is provided with a lining forming an insulation.

A seal arrangement for sealing a gap between a machine element comprising a shaft and a housing includes: at least one sealing element formed, at least partially, from polymeric material. The at least one sealing element is of annular design and is made of PTFE. The at least one sealing element has at least one first annular element and at least one second annular element. The at least one first element is electrically conductive and the at least one second element is electrically insulating. The at least one first element is arranged axially adjacently to the at least one second element. The at least one sealing element is provided with electrically conductive contact elements. The housing has an installation space forming an annular groove for the at least one sealing element. The installation space is provided with a lining forming an insulation.

An oil sealing device for preventing a leakage of an oil of a bearing which supports a rotary shaft of a rotating machine has a brush member having a plurality of bristles in contact with the rotary shaft, and an actuator configured to move the brush member in a length direction of the rotary shaft, wherein a sloped surface having different heights along a length direction of the rotary shaft is formed at the rotary shaft, and wherein when the bristles are worn, the actuator moves the brush member in a length direction of the rotary shaft so that the bristles comes into contact with the sloped surface.

An oil sealing device for preventing a leakage of an oil of a bearing which supports a rotary shaft of a rotating machine has a brush member having a plurality of bristles in contact with the rotary shaft, and an actuator configured to move the brush member in a length direction of the rotary shaft, wherein a sloped surface having different heights along a length direction of the rotary shaft is formed at the rotary shaft, and wherein when the bristles are worn, the actuator moves the brush member in a length direction of the rotary shaft so that the bristles comes into contact with the sloped surface.

The invention in provides an apparatus, system and method of monitoring a sealing device. The apparatus comprises an inlet configured to receive pressurised fluid from a seal activation fluid pressure source and an outlet configured to be connected to a sealing device to deliver pressurised fluid to a seal element of the sealing device to energise the sealing device in use. A fluid barrier is disposed between the inlet and the outlet and is operable to isolate the inlet from the outlet. A fluid chamber is defined between the fluid barrier and the outlet, and the apparatus comprises means for detecting a change in condition in the fluid chamber indicative of a change in volume of the seal element of the sealing device.

The invention in provides an apparatus, system and method of monitoring a sealing device. The apparatus comprises an inlet configured to receive pressurised fluid from a seal activation fluid pressure source and an outlet configured to be connected to a sealing device to deliver pressurised fluid to a seal element of the sealing device to energise the sealing device in use. A fluid barrier is disposed between the inlet and the outlet and is operable to isolate the inlet from the outlet. A fluid chamber is defined between the fluid barrier and the outlet, and the apparatus comprises means for detecting a change in condition in the fluid chamber indicative of a change in volume of the seal element of the sealing device.

The invention relates to a load measuring device including a deformable component configured to be deformed under a load to be measured and a sensor assembly attached to a first portion of the deformable component and to a method for determining load using such a sensor assembly. It is proposed that the sensor assembly includes at least one acceleration sensor configured to detect a change in an orientation of the first portion with regard to the direction of gravity and that the deformable component is formed as a seal configured to be in sliding contact with a component configured to rotate in relation to the seal.

The invention provides a sealing assembly that includes an elastic seal lip having a movable part. The seal lip is configured to be attached to a first part of a machine and to be in sliding contact with a second part of the machine. It is proposed that at least one vibration sensor is fixed to the movable part of the seal lip.

The invention provides a sealing assembly that includes an elastic seal lip having a movable part. The seal lip is configured to be attached to a first part of a machine and to be in sliding contact with a second part of the machine. It is proposed that at least one vibration sensor is fixed to the movable part of the seal lip.