The present invention provides a solid golf ball having exceptional rebound characteristics and flight performance, as well as good shot feel. The present invention relates to a solid golf ball comprising at least one layer of a core, and at least one layer of a cover formed on the core, wherein at least one layer including the inmost layer of the core is formed by vulcanizing a rubber composition comprising a base rubber, a co-crosslinking agent, a vulcanization initiator and a filler, the core has a center hardness in JIS-C hardness of 40 to 60, a surface hardness in JIS-C hardness of 80 to 95 and a hardness difference (B−A) between a hardness in JIS-C hardness at a distance of 5 mm from the center point of the core (B) and the center hardness (A) of not less than 1 to less than 10.
本发明提供了一种具有优异反弹特性和飞行性能以及良好击球手感的实心高尔夫球。本发明涉及一种实心高尔夫球,包括至少一层球芯和至少一层在球芯上形成的包胶,其中包括球芯最内层在内的至少一层包胶是通过
硫化橡胶组合物形成的,该橡胶组合物包括
基础橡胶、共
交联剂、
硫化
引发剂和填料、夹芯的中心硬度(JIS-C 硬度)为 40 至 60,表面硬度(JIS-C 硬度)为 80 至 95,距夹芯中心点 5 毫米处的 JIS-C 硬度(B)与中心硬度(A)之间的硬度差(B-A)不小于 1 至小于 10。