| 摘要 |
<p>A disk brake rotor includes material or mass, preferably in the form of metal generally integrally cast with and disposed generally adjacent the outer periphery of the rotor which thermally balances the heat sink and inherent heat sinking function of the central mounting section portion of the disk rotor. In a vented disk brake rotor, this balancing mass may be disposed in the wall of the rotor most proximate the mounting section by proportioning the thickness of the wall at a given point in relation to the radial distance from the center of the rotor. In a solid disk brake rotor, thermal balancing mass may be disposed adjacent the periphery of the rotor beyond the wall areas of the rotor swept by the disk brake pads. The invention may also be practiced by providing an unswept area of a rotor sidewall proximate its outer periphery by reducing the radial width of a brake pad thereby providing a region which functions as a heat sink to compensate for the heat sinking function of the mounting section rather than a source of frictional heat.</p> |
