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F W bushing materials

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Group Products Bearings, ... Plain... C omposite dry ... General General F W bushing materials

fig 1

FW bushing materials

FW bushings (fig 1) are produced by a winding technique from a self-lubricating composite. The sliding layer consists of strands of high-strength polyester and reinforced PTFE (polytetrafluoroethylene) in an epoxy resin matrix. The shell or backing is made of wound high-strength tensioned glass fibre also in an epoxy resin matrix. The sliding and backing layers are firmly anchored to each other.

Both layers are produced by winding endless strands in a criss-cross pattern.

Modern filament winding technology has made it possible to combine the special mechanical properties of glass fibre with the excellent tribological properties of high-strength thermoplastic and PTFE fibres embedded in epoxy resin to

produce a new, innovative bearing material. The defined position of the strands in the criss-cross pattern and the intensive binding between the strands and the resin provide very high load carrying capacity and wear resistance.

The basic technical data are given in the table.

References

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