Abstract: Embodiments of golf club heads and methods to manufacture golf club heads are generally described herein. A golf club head includes a means for defining an interior cavity including a first material having a first density. The golf club head also includes a first means for increasing a moment of inertia of the means for defining the interior cavity, a second means for increasing a moment of inertia of the means for defining the interior cavity, and a third means for increasing a moment of inertia of the means for defining the interior cavity. The first, second, and third means include a second material having a second density greater than the first density. A portion of the first, second, and third means define visible portions of a back wall portion of the means for defining an interior cavity. Other examples and embodiments may be described and claimed.

Abstract: Embodiments of golf club heads and methods to manufacture golf club heads are generally described herein. In one example, a golf club head may include a first body portion being hollow to define an interior cavity, a first body portion recess on a back wall portion below a horizontal midplane of the first body portion, and a second body portion removably coupled to the first body portion in the first body portion recess. The golf club head may include at least one fastener configured to fasten the second body portion to the first body portion, and a face portion having a back surface opposite the front surface and associated with a total back surface area. The back surface may include first back surface region associated with a first back surface area and coupled to a front portion of the first body portion. The face portion may include a second back surface region exposed to the interior cavity and associated with a second back surface area.

Abstract: Embodiments of golf club heads, golf clubs, and methods to manufacture golf club heads and golf clubs are generally described herein. In one example, a golf club head may include a body portion including an interior cavity, a filler material in the interior cavity, and a face portion having a front surface, a back surface, a face perimeter defined by a face toe edge, a face heel edge, a face top edge, and a face sole edge.

Abstract: Embodiments of golf club heads and methods to manufacture golf club heads are generally described herein. In one example, a golf club head may include a body portion with an interior cavity, an upper back wall portion, a lower back wall portion, a ledge portion extending from the upper back wall portion to the lower back wall portion, an upper back wall portion thickness, and a lower back wall portion thickness. The golf club head may further include a first mass portion below the ledge portion, a second mass portion above the ledge portion, a polymer material in the interior cavity, a first width of the interior cavity above the ledge portion, a second width of the interior cavity below the ledge portion and above the lower back wall portion thickness, and a third width of the interior cavity below the second width.

Abstract: Embodiments of golf club heads and methods to manufacture golf club heads are generally described herein. In one example, a golf club head may include a body portion having a top portion, a bottom portion, a toe portion, a heel portion, a front portion, a rear portion, and a skirt portion defined as a side portion of the golf club head located between the top portion and the bottom portion and extending across a periphery of the golf club head from the toe portion, around the rear portion, and to the heel portion. The golf club head may include a structural support extending from the skirt portion on a toe side of the golf club head, across the bottom portion, and to the skirt portion on a heel side of the golf club head. Other examples and embodiments may be described and claimed.

Abstract: Embodiments of golf club heads, golf clubs, and methods to manufacture golf club heads and golf clubs are generally described herein. In one example, a golf club head may include a body portion including an interior cavity, a filler material in the interior cavity, and a face portion having a front surface, a back surface, a face perimeter defined by a face toe edge, a face heel edge, a face top edge, and a face sole edge.

Abstract: Examples of golf club heads and methods to manufacture golf club heads are generally described herein. In one example, a body portion of a golf club head may include a cavity having an opening and an internal structure defined by a wall portion and a base portion. A hosel portion may include an insert portion and a neck portion extending therefrom. The hosel portion may be attached to the body portion by an interference fit between the neck portion and the opening of the cavity. The insert portion may be received inside the cavity and may be spaced apart from the internal structure of the cavity. A space between the insert portion and the internal structure of the cavity may be partially or entirely filled with an adhesive to hold the hosel portion in place. Other examples may be described and claimed.

Abstract: Embodiments of golf club heads, golf clubs, and methods to manufacture golf club heads and golf clubs are generally described herein. In one example, a golf club head may include a body portion made from a first material with a first density and having an interior cavity, a toe portion with a toe portion edge, a heel portion with a heel portion edge, a front portion, a back portion with a back wall portion including a back opening portion, a top portion with a top portion edge, and a sole portion with a sole portion edge. A back cover portion made from second material with a second density different from the first density is coupled to the body portion to close the back opening portion. The back cover portion includes a port extending through the back cover portion. A filler material is injected into the interior cavity from the port. A mass portion is inserted into the port to close the port. The mass portion made from a third material with a second density greater than the first density.

Abstract: Examples of golf club heads and methods to manufacture golf club heads are generally described herein. In one example, a golf club head may include a body portion having a sole portion with a set of weight ports. Each weight port may have a first section and a second section. Each weight portion from a first set of weight portions may be adhered to the first section of a corresponding weight port by epoxy. Each weight portion from a second set of weight portions may be fastened to the second section of a corresponding weight port. At least a portion of the weight portions of the first set of weight portions may be interchangeable. At least a portion of the weight portions of the second set of weight portions may interchangeable. Other examples may be described and claimed.