Vesconite solved swivel hitch coupling wear on grid rollers used to break up and compact rocks for example in road building, even without greasing.

The grid roller is towed behind a vehicle connected via the swivel hitch.

The pin through the swivel is made of EN19 steel. Originally the bush was made of steel. A high wear rate occurred due to the harsh conditions and because of the lack of lubrication. Bronze replacement bushes also gave a high wear rate due to the poor lubrication.

The grid roller was used at a diamond mine in Botswana and was used to compact deep sections of rock causing high impact loads.

Bush size : 80 x 60 - 130 mm long.

The bush was not lubricated on site.

The Vesconite bush had been in operation for over 5 months in these harsh conditions when the roller required a service. The Vesconite bush was still in an acceptable condition.

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