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
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.