| abstract |
Golf ball has a core, a cover, and numerous dimples 12 formed on the surface of this cover. Principal component of the cover is a polyurethane elastomer. This cover has a Shore D hardness of 30 or greater and 55 or less. Occupation ratio Y of total area of the dimples 12 to surface area of a phantom sphere is equal to or greater than 75%. Proportion of the number NL of the dimples 12 having a diameter of equal to or greater than 3.90 mm to total number N of the dimples 12 is equal to or greater than 75%. Proportion of the number ML of dimples having a diameter of equal to or greater than 3.90 mm, having (Re/Rw) of 0.5 or greater and 1.5 or less, and having Re of 2.0 mm or greater and 5.0 mm or less to the number NL is equal to or greater than 50%. |