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
homopolyrners, 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.