Compositions and materials for use in load/unload ramps in magnetic disk
drive assemblies are disclosed, particularly compositions or materials to
improve at least one of the desired characteristics of low wear, low
cost, high mechanical stability and high moldability. Thermoplastic
polymers, such as acetal homopolymers, acetal copolymers,
polyetherimides, polyphenylene sulfides, and polysulfones, are combined
with other compositions, such as polyaramides, to improve the
characteristics of a load/unload ramp constructed therefrom.
Additionally, another material may be added, such as a
polytetrafluoroethylene or perfluoropolyether.