Brake assembly including expandable rotor

A brake assembly comprising:

• a rotor including a rotor flange defining an aperture, an axis of rotation of the brake assembly extends through a center of the aperture;
• a spindle within the aperture, the spindle in cooperation with the rotor to restrict independent rotation of the rotor and the spindle about the axis of rotation, the spindle including:
• a spindle base including a spindle flange in cooperation with, and overlapping, the rotor flange;
• and
• a spindle sleeve at a center of the spindle base, the spindle sleeve defining a spindle bore, the axis of rotation of the brake assembly extends through the spindle bore;
• and
• a retention member overlapping the rotor flange and the spindle flange to restrict axial movement of the rotor relative to the spindle along the axis of rotation, the rotor flange is between the spindle flange and the retention member;
• wherein:
• cooperation between the rotor flange and the spindle flange restricts axial movement of the rotor relative to the spindle along the axis of rotation, and accommodates radial expansion of the rotor in a plane perpendicular to the axis of rotation by allowing the rotor flange to slide along the spindle flange outward from the axis of rotation in response to the rotor being heated;
• and
• the retention member is a retention ring affixed to the spindle base with a plurality of fasteners extending through the spindle base, the plurality of fasteners configured to mount a wheel to the brake assembly.

A brake assembly comprising:

• a rotor including an outer cheek, an inner cheek, and a plurality of vanes between the outer cheek and the inner cheek;
• a cheek flange included with the outer cheek, the cheek flange defining an aperture, the cheek flange extending along alternating cheek recesses and cheek ridges at the aperture, an axis of rotation of the brake assembly extends through a center of the aperture;
• a spindle within the aperture, the spindle defining a spindle bore, the spindle including a spindle flange in cooperation with the cheek flange to restrict axial movement of the rotor relative to the spindle along the axis of rotation in a first direction, the spindle flange extending along alternating spindle recesses and spindle ridges, the spindle recesses cooperate with the cheek ridges and the spindle ridges cooperate with the cheek recesses to restrict independent rotation of the rotor and the spindle about the axis of rotation;
• and
• a retention member overlapping the spindle recesses and the cheek ridges to restrict axial movement of the rotor relative to the spindle along the axis of rotation in a second direction that is opposite to the first direction, the cheek flange is between the retention member and the spindle flange.