| 摘要 |
In order to provide a shim structure capable of controlling the generation of a voltage by the difference in the standard electrode potentials specific to metals between an aluminum caliper and a metal plate, the shim structure abutting against the backing plate of a friction material, which forms a disc pad, is constituted by providing rubber layers on both sides of an aluminum alloy plate. Since the aluminum alloy plate is used for the metal plate constituting the shim structure, even when a steel caliper is replaced with the aluminum caliper, the generation of the voltage generated between metals is controlled to a lesser degree, thereby preventing corrosion of the caliper arising therefrom.
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