| CPC F16D 65/18 (2013.01) [F16D 2121/24 (2013.01); F16D 2125/40 (2013.01); F16D 2127/06 (2013.01)] | 17 Claims |
|
1. A brake assembly comprising:
a rotatable part configured to be rotated by an actuator;
a fixed part comprising an outer ball nut fixed to a housing;
a rotatable and translatable part comprising an outer ball screw and an inner ball nut, wherein the outer ball screw is operably coupled with the outer ball nut of the fixed part through first rolling bodies, and the rotatable and translatable part comprising the outer ball screw and the inner ball nut is operably coupled with the rotatable part and is configured to be rotated relative to the outer ball nut and axially translated relative to the rotatable part and the outer ball nut of the fixed part simultaneously by rotation of the rotatable part;
a translatable part comprising an inner ball screw operably coupled with the inner ball nut of the rotatable and translatable part through second rolling bodies, the inner ball screw configured to be axially translated relative to the rotatable and translatable part comprising the outer ball screw and the inner ball nut by rotation of the inner ball nut to move a brake pad assembly; and
the brake pad assembly configured to be movable relative to a rotor in response to axial translation of the inner ball screw of the translatable part.
|