Amartech axiseal

The AxiSeal is applied in conjunction with our waterlubricated easystern system. Amartech will be delighted to give its recommendations about the conversion of a grease lubricated assembly into a water lubricated one.

Advantages of the AxiSeal® by amartech:

  • No shaft wear, owing to the use of axial sealing surfaces
  • Well suited in combination with old/worn propeller shafts
  • Maintenance-free
  • Environment-friendly
  • Easy installation
  • Compact installation dimensions
  • Perfect shaft sealing
  • Long life span, on account of the SiC components
  • Seawater-resistant
  • Allowed propeller shaft movements
  • Approved by all main classification institutes

How does the AxiSeal® work?

The AxiSeal® is a truly unique axial seal, a totally different way of sealing in comparison with a radial seal, such as the conventional stuffing box or lip-type seal. In the case of a radial seal the sealing rings function directly onto the propeller shaft. Inevitably, this causes wear of the sealing rings and the propeller shaft within a relatively short period of time, leakage being the unwanted result.

The AxiSeal® performs its task in the axial mode (parallel with the shaft’s centerline). The Silicon Carbide (SiC) rotary face runs together with the propeller shaft, against a Silicon Carbide (SiC) stationary seat. The minuscule coefficient of friction, combined with a lubricating water film results in a very long life span of the AxiSeal® sealing system.

Technical specifications:

  • Shaft diameters from: Ø 35 to Ø 200 mm and Ø 1½” to Ø 7¼” (imperial and metric)
  • Lubrication: untreated (sea)water
  • Water temperature: -5 to + 40° C
  • Operating water pressure: 0,05 - 1,5 bar
  • Maximum access speed at sealing surfaces: 12 m/s
  • Maximum axial shaft movement: +/- 10 mm
  • Maximum radial shaft movement: +/- 2 mm

You are looking for an absolutely maintenance-free propeller shaft seal? 
Then there is only one solution: the AxiSeal® by amartech.