Golf
was first played with a leather-covered ball stuffed with goose
feathers before the first
"Gutta"
ball, which is believed to have been made in 1848 from gutta-percha
packing material. With the durability, lower cost and improved
performance, the Gutta balls replaced the leather-covered feathery
balls. The rubber ball was then invented in 1898 and replaced
Gutta balls. The ball featured rubber thread wound around a solid
rubber core. Later, the Balata cover was developed in the early
1900’s. The dimple pattern similar to today's golf club was
first used in 1908. Then, in 1930 the first golf ball standard
was set by the British Golf Association, followed by the USGA.
The standard of today was set at a maximum of 1.620 ounce (45.93
g) in weight, and the diameter of less than 1.680" (4.27
cm).
Market Trend - Tour pros
have changed their golf balls from wound balls to solid center
mutilayer balls. New solid-center multilayer balls outperform
wound (liquid center) balls in distance while the feel and controllability
is not sacrificed. The durability and precision of today’s golf
balls owe to the development of new materials such as improved
plastics, silicone, rubber and composite materials. Today's golf
balls are very sophisticated. Special
elastomer
(urethane based material is very popular for today's high performance
golf balls for better players) with multilayer structure for softer
yet longer balls are commonplace.
Except for the lower end of golf balls with Surlyn cover 2-piece
balls, the most of today's golf balls are designed for a softer
feel and distance with reasonable durability. The retail price
varies in the range of $15 - $60 for a dozen new balls; however,
most of the high performance golf balls cost in the range of $30
- $60 (retail) nowadays. The core material and structure as well
as the cover material and dimple patterns determine the specifications
of golf balls. As to the performance characteristics, traditionally
golf balls can be classified into three different types: 1) distance
and durability (DD); 2) distance and control (DC), and 3) control
and feel (CF). The market trend, however, is toward new high performance
balls providing additional distance and durability as well as
control and feel (DCF).
Core Construction
- Differences in core construction influence the performance characteristics:
spin rates (control and distance), initial velocity (distance)
and compression (feel). Traditionally, there are basically two
types of core constructions -- wound and solid -- more specifically
three-piece wound core ball and a two-piece solid core ball. The
wound ball (no longer available) consists of the center, the windings
and the cover. The center is either liquid-filled or solid. Normally,
balata-covered golf balls featured a liquid filled core, which
lowers the spin rate at a higher ball velocity. Two piece balls
with solid centers, which increase the spin rate at a higher ball
velocity, are generally made of rubber or thermoplastic elastomer
compound. High end solid-center multilayer balls generally consist
of a large core (either solid one piece or multi-layer), another
layer for spin control (i.e. ionomer casing by Titleist) and a
thin urethane elastomer cover. It lowers the amount of spin at
a higher ball velocity (i.e. driver shots.)
Cover Materials and Design
- The golf ball cover was either balata, elastomer or Surlyn.
However, balata balls are no longer sold today. The cover materials
together with the core construction alter the spin rate and feel
of the ball. The distribution of mass toward the outer layer makes
the moment of inertia larger, therefore the revolution of the
golf ball at the landing tends to be higher without having higher
initial revolution rates. It helps stop the ball on the green
without sacrificing the distance. Tungsten is occasionally used
for golf balls for the composite layer underneath the cover for
larger moment of inertia. In the meantime, it is believed that
the optimal revolution for long driving shots are in the range
of 2,300 -2,800 rpm. Multilayer or multiple covers with advanced
materials in conjunction with aerodynamic dimple patterns are
often used for the optimal launch conditions such as ball velocity,
launch angle and spin rate for distance, as well as the better
feel, true roll and control. The dimple number and pattern influence
the ball trajectory.
Four Types of Golf Balls - Traditionally,
there have been three types of golf balls. First, 3-piece models,
which consist of a small, liquid-filled or solid rubber core wrapped
by rubber thread and then covered with a balata, urethane or balata-derivative
cover, are for feel, spin and control. (This type of balls are
no longer sold.) Second, so called "Double Cover" models
combining a large, solid core with two layer covers are, in a
sense, reasonable in both feel and distance. The outer cover is
usually soft and the inner cover tends to be made from harder
and sometimes heavier materials. Third, Surlyn-covered wound balls
normally have a solid rubber center. The harder, and durable Surlyn
cover decreases the spin rate of the golf ball. However,
today's high performance balls are solid center multilayer structure
providing more distance without sacrificing feel, spin and control.
Compression - Ball compression
used to be one of the most important specifications to choose
a golf ball. The compression rating, 80, 90 or 100 (even 110 was
approved), denotes the hardness of core. The lower the compression,
the softer a golf ball feel at impact. In the past, low compression
balls were sold for ladies or seniors. Today, however, golf ball
manufacturers abandoned to use compression as a specification
to sell the balls. It appears that today's golf balls featuring
sofler feel are in the range of 70 - 80 compression (most of the
makers do not publish the data.) Top-Flite publishes the data,
and the Strata Tour Premier, a high-end performance golf ball,
is 80 in compression. Some manufactures are now selling very low
core compression (i.e. in the 40s) balls.
Golf Ball
Manufacturers and Products - Many types of golf balls
are sold today from such major brand names as
Titleist,
Maxfli,
Precept,
Top-Flite,
Slazenger,
Srixon,
Taylor
Made,
Pinnacle,
Dunlop,
Callaway
and
Nike.
Golf balls offered by the ball manufacturers have changed significantly.
As recent as in 2000, Titleist, one of the leading golf ball companies,
for instance, used to offer golf balls named: Balata, Prestige,
Professional, Tour Distance, HP Tour, HP Eclipse, HP Distance,
DT Wound, DT 2-piece (from softer to harder/distance). However,
as of 2004, these golf balls were replaced by a completely new
line of golf balls: Pro V1, ProV1x, NXT Tour, NXT, and DT Solo
(less varieties) using new design and technologies.