| 摘要 |
The two-piece golf ball of the present invention comprises a core formed from a rubber composition comprising a base rubber, a co-crosslinking agent and an organic peroxide, and a cover covering the core, wherein the core has the following hardness distribution when measured by a JIS-C hardness meter; (1) hardness at the center; 58 to 73 (2) hardness at 5 to 10 mm from the center; 68 to 78 (3) hardness at 15 mm from the center: 76 to 88 (4) surface hardness; 78 to 88 (in the hardness distribution, hardness (2) is substantially constant being within the above range, of which the tolerance is within +/- 3 and the other values satisfy the relation of (1) < (2) < (3) </= (4) ), the compression deformation of the core is in the range of from 2.8 to 3.5 mm when pressurized by an initial load of 10 kg up to a final load of 130 kg and the cover has a thickness of 1.5 to 2.1 mm. The shot feel of these two-piece golf balls is closer to that of thread-wound golf balls. |
