Vesconite Hilube for Pump Applications

Vesconite Hilube can last up to ten times the life of bronze

Vesconite - Hilube for Spindle PumpsVesconite Hilube is a thermopolymer, designed for particularly difficult operating environments. Hilube is specifically recommended for moist and underwater applications. These include the pump and marine industry, where regular maintenance is not practically feasible or cost-effective. Displaying superior wear life, especially in poorly lubricated and dirty conditions, Vesconite Hilube has been shown to offer up to ten times the life of bronze bushings.

Vesconite Hilube incorporates an internal lubricant that translates into an exceptionally low friction coefficient. With excellent dimensional stability, low wear rates, and a high load-bearing capacity, Hilube excels in difficult applications.


Vesconite Hilube has been used for decades in a wide range of specialized pump bearing applications.

The material thrives in water, keeping to machined sizes without swelling and with zero delamination.

Other advantages are that it does not corrode, and helps prevent the corrosion between metal components especially in salt water; is resistant to oils and fuels; and is easy to machine, fit and remove – and prolongs shaft life.

In addition, it allows dry startup for up to 1 minute.

Vesconite Hilube is recommended for most pump bearing applications, such as: 

  • Vertical turbine pumps:
    Casing wear rings, top stuffing box bearings, lineshaft / spider bearings, bowl bearings and inlet bearings

  • Vertical spindle pumps (sump pumps):
    Casing wear rings, lineshaft / spider bearings and inlet bearings

  • Mixed flow pumps:
    Casing wear rings, lineshaft / spider bearings and inlet bearings

  • Multi-stage surface pumps:
    Neck ring liners and diffuser bearings

  • Submersible pumps:
    Neck ring liners, casing wear rings and diffuser bearings

  • Split-case and centrifugal pumps:
    Casing wear rings and water flingers / deflectors

  • Diaphragm pumps:
    Valve spools

  • Gear pumps:
    Support bearings (external and internal)

  • Rotary vacuum vane pumps / exhausters:
    Vanes

The original article was written by Vesconite and can be found on their website here.

For more information about Vesconite’s Hilube or other bearings and bushings, please contact Gallagher Fluid Seals’ engineering department.