Abstract: A hubbed blade to be mounted on a spindle includes a circular hub and a circular blade fixed on a side of a first side of the hub. The blade has an opening formed through its center. The hub includes a protrusion portion protruding from the first side and having an outer peripheral edge of a shape corresponding to a shape of the opening. The hub and the blade are connected together via an adhesive with the hub and the blade being aligned each other with the protrusion portion inserted in the opening.

Abstract: A hubbed blade to be mounted on a spindle includes a circular hub having an opening formed through a center thereof, and a circular blade fixed on a side of a first side of the hub. The hub has a first raised portion and a second raised portion. The first raised portion is circular, is disposed along an outer peripheral edge of the hub, and protrudes from the first side of the hub. The second raised portion is disposed so as to surround the opening on an inner side than the first raised portion in a radial direction of the hub, and protrudes from the first side of the hub. The hub and the blade are connected together via an adhesive applied to a plurality of regions on an end face of the second raised portion.

Abstract: A hubbed blade to be mounted on a spindle includes a circular hub and a circular blade fixed on a side of a first side of the hub. The blade has an opening formed through its center. The hub includes a protrusion portion protruding from the first side and having an outer peripheral edge of a shape corresponding to a shape of the opening. The hub and the blade are connected together via an adhesive with the hub and the blade being aligned each other with the protrusion portion inserted in the opening.