A brake includes a rotating element and a magnet wheel mounted on the rotating element so as to rotate with the rotating element about an axis of rotation. The magnet wheel has a first side extending transversely of the axis of rotation and facing the rotating element and a second side extending transversely of the axis of rotation and facing away from the rotating element. A first axial stop interacts with a first stop section located on the first side of the magnet wheel and a second axial stop interacts with a second stop section located on the second side of the magnet wheel for limiting an axial movement of the magnet wheel relative to the rotating element to a first predetermined amount. Along each line extending parallel to the axis of rotation and extending through the first or the second axial stop, the distance between the first stop section and the second stop section is smaller than the distance between the first axial stop and the second axial stop.
An exciter ring/disc brake rotor assembly allows snap in fitting of the exciter ring onto the disc brake rotor. Either of two snap fit mechanisms limits clocking of the ring in use.
Exciter rings, wheel assemblies and methods of assembling. In some aspects, a wheel assembly includes a brake rotor including a barrel section having an interior surface defining a barrel cavity, and a projection extending from the interior surface of the barrel section into the barrel cavity. The wheel assembly also includes an exciter ring formed separately from the brake rotor and engagable with the projection within the barrel cavity to removably connect the exciter ring to the brake rotor. In other aspects, an exciter ring is formed separately from and removably connectable to a brake rotor and includes a body portion having an outer surface, the body portion including a detent protruding outwardly from the outer surface and extending around the outer surface of the body portion. The exciter ring also includes a flange extending radially outwardly from the body portion and having a plurality of apertures.
