What are bowling balls made of?
Bowling Ball Material Regulations A bowling ball shall be constructed without voids in its interior, be of a non-metallic composition material and conform to the specifications for weight, size and balance. The use of minute reflective particles or flakes for decorative purposes shall be permitted in bowling ball material provided such flakes or particles are made part of the ball at the time of manufacture, are evenly distributed in a uniform pattern under a transparent shell at least 1/4″ beneath the surface of the ball so as to have no effect on the balance, and the total amount of such material does not exceed 1/2 ounce per ball. Also, the surface hardness shall not be less than 72 Durometers “D.” So what are they made of? In the 1960s, hard rubber balls were used. Polyester balls took over as the ball of choice inthe ’70s. You will find that most of the ‘house balls’in your local bowling alley are made of the polyester. In the ’80s the urethane ball was developed, whihc then were
There are four basic types of balls on the market today: plastic/polyester, urethane, reactive, and particle. Each uses a different production technology. Understanding what each one does will help you choose the right ball. Plastic/Polyester: The type ball that most recreational bowlers will recognize is the polyester bowling ball, which is commonly referred to as a “plastic” bowling ball. Polyester bowling balls have been available since the 1960s. They have a low cost compared to the other types of bowling balls and they are very durable, which is why they are used as “house” balls on the racks of most bowling centers. The durability comes from the hard, low friction nature of the polyester cover. This low friction nature causes the “plastic” ball to skid more and maintain a straighter trajectory. “Plastic” balls are primarily used by beginning bowlers; however, many experienced and professional bowlers use them for spare shots and for very dry lane conditions. Urethane: In the late
