What Are Bowling Balls Made Of?

Bowling balls are a critical part of this popular sport, and their construction and materials significantly impact gameplay. Whether you're playing recreationally or at a professional level, understanding what goes into a bowling ball and the materials used in its production can enhance your appreciation of the game. In this article, we’ll explain the structure of a bowling ball and the properties provided by different materials.

Structure of a Bowling Ball

What Are the Components of a Bowling Ball?

The Core – What’s Inside the Ball?

The core is the central component of a bowling ball, responsible for its balance, trajectory, and reaction on the lane. Cores come in various shapes—symmetrical or asymmetrical—depending on whether the ball is intended for recreational or professional use.

The Outer Shell – What Does It Do?

The outer shell, or coverstock, is the layer that comes into direct contact with the lane surface. Its role is to provide grip and control. Depending on the material, the coverstock can influence the ball’s rotation, stability, and ability to perform advanced throws.

Why Do Bowling Balls Have Finger Holes?

How Are Finger Holes Customized for Players?

The finger holes in bowling balls allow players to have a better grip and more control during their throw. In professional bowling balls, the holes are often customized to fit the player’s hand, improving comfort and precision.

Materials Around the Finger Holes for Durability

Additional reinforcements made from hard materials like epoxy resins are used around the finger holes to prevent cracking during intense gameplay.

Materials Used in Bowling Ball Production

The Outer Shell of the Ball

Urethane – The Most Popular Material for Recreational Balls

Urethane is a common material in recreational bowling balls because it offers a good balance of grip and durability. It’s suitable for players of all skill levels.

Reactive Resin – Advanced Material for Professional Balls

Reactive resin is used mainly in professional bowling balls, offering enhanced rotation control and allowing for more advanced gameplay. Its superior grip on the lane enables players to execute precise, curved throws.

Plastic and Polyester – For Beginners and Children

Plastic and polyester coverstocks are commonly used in balls for beginners and children. These materials are affordable and make the ball easier to control, making them ideal for those just starting in bowling.

The Core of the Ball

Symmetrical and Asymmetrical Cores – Differences in Function and Material

Symmetrical cores are simpler in design and provide predictable ball motion, making them ideal for recreational players. Asymmetrical cores are more complex and offer greater control, catering to professional gameplay.

What Materials Are Used for the Core?

Bowling ball cores are typically made from dense materials like blends of epoxy resins and mineral powders, providing the necessary weight and balance.

Additional Materials Affecting Weight and Durability

Epoxy Resin Fillings

Epoxy resins are used in the core to give the ball its desired density and durability. This ensures the ball can withstand impacts and maintain its performance over time.

Metallic or Rubber Inserts in the Core

Some bowling balls feature additional components, such as metal or rubber inserts, to adjust the weight and balance of the ball, allowing for better customization to the player’s preferences.

Conclusion

Bowling balls are made from advanced materials that influence their durability, control, and grip on the lane. The outer shell, core, and finger holes are key components that determine the characteristics of each ball. Depending on the materials used, a bowling ball can be designed for beginners, recreational players, or professionals. With the variety of materials and constructions available, everyone can find a ball that perfectly suits their needs and playing style.