A target support for supporting a target magnet within an enclosed proximity switch assembly, the target support comprising: a hub having a body portion that extends along a longitudinal axis, the body portion including an outer surface and a shaft aperture that extends along the longitudinal axis, the shaft aperture adapted to receive a portion of a shaft that extends along the longitudinal axis, wherein the body portion further includes one or more threaded body apertures that extend from the outer surface to the shaft aperture; and a magnet support non-rotatably secured to the hub, the magnet support having a base portion that extends in a direction normal to the longitudinal axis, characterized in that the base portion includes a planar top surface, the magnet support further includes a side wall that upwardly extends from the top surface of the base portion, the side wall being partially defined by an inner surface; and in that the target support further comprises: one or more target magnets disposed on the top surface of the base portion of the magnet support between a portion of the hub and the inner surface of the side wall of the magnet support; a clamp plate having a planar bottom surface and a shaft aperture adapted to receive a portion of the shaft, the clamp plate being secured to the hub such that the bottom surface of the clamp plate is immediately adjacent to or in contact with a top surface of the hub and such that the bottom surface of the clamp plate is also immediately adjacent to or in contact with a top surface of the one or more target magnets; a set screw adapted to threadably engage one of the one or more body apertures such that a distal end of the set screw contacts an outer surface of the shaft to non-rotatably secure the target support to the shaft, wherein a minimum torque of 150 inch-ounces is applied to the set screw, and a high-temperature potting applied to one of a portion of the set screw or a portion of the one of the one or more body apertures to secure the set screw within the one of the one or more body apertures. a hub having a body portion that extends along a longitudinal axis, the body portion including an outer surface and a shaft aperture that extends along the longitudinal axis, the shaft aperture adapted to receive a portion of a shaft that extends along the longitudinal axis, wherein the body portion further includes one or more threaded body apertures that extend from the outer surface to the shaft aperture; and a magnet support non-rotatably secured to the hub, the magnet support having a base portion that extends in a direction normal to the longitudinal axis, characterized in that the base portion includes a planar top surface, the magnet support further includes a side wall that upwardly extends from the top surface of the base portion, the side wall being partially defined by an inner surface; and in that the target support further comprises: one or more target magnets disposed on the top surface of the base portion of the magnet support between a portion of the hub and the inner surface of the side wall of the magnet support; a clamp plate having a planar bottom surface and a shaft aperture adapted to receive a portion of the shaft, the clamp plate being secured to the hub such that the bottom surface of the clamp plate is immediately adjacent to or in contact with a top surface of the hub and such that the bottom surface of the clamp plate is also immediately adjacent to or in contact with a top surface of the one or more target magnets; a set screw adapted to threadably engage one of the one or more body apertures such that a distal end of the set screw contacts an outer surface of the shaft to non-rotatably secure the target support to the shaft, wherein a minimum torque of 150 inch-ounces is applied to the set screw, and a high-temperature potting applied to one of a portion of the set screw or a portion of the one of the one or more body apertures to secure the set screw within the one of the one or more body apertures. one or more target magnets disposed on the top surface of the base portion of the magnet support between a portion of the hub and the inner surface of the side wall of the magnet support; a clamp plate having a planar bottom surface and a shaft aperture adapted to receive a portion of the shaft, the clamp plate being secured to the hub such that the bottom surface of the clamp plate is immediately adjacent to or in contact with a top surface of the hub and such that the bottom surface of the clamp plate is also immediately adjacent to or in contact with a top surface of the one or more target magnets; a set screw adapted to threadably engage one of the one or more body apertures such that a distal end of the set screw contacts an outer surface of the shaft to non-rotatably secure the target support to the shaft, wherein a minimum torque of 150 inch-ounces is applied to the set screw, and a high-temperature potting applied to one of a portion of the set screw or a portion of the one of the one or more body apertures to secure the set screw within the one of the one or more body apertures.