What Are Bowling Balls Made Of


Bowling is a fun and exciting sport that has been enjoyed by people of all ages for many decades. One of the most important pieces of equipment in bowling is the bowling balls. Bowling balls are essential for achieving strikes and spares, and they come in a variety of shapes, sizes, and materials. In this article, we will take a closer look at what bowling balls are made of, how they are manufactured, and what factors you should consider when choosing a bowling ball.

How Are Bowling Balls Made?

Bowling balls are manufactured through a complex process that involves several steps. The manufacturing process begins with the selection of the appropriate materials that will be used to make the ball.

The first step in making a bowling ball is to create the core of the ball. The core is the weight block that is placed at the center of the ball. The weight block is made of a dense material such as ceramic or metal and is designed to give the ball its weight and balance.

Once the weight block is created, it is covered with a layer of resin. The resin is used to bond the weight block to the coverstock, which is the outer layer of the ball. The coverstock is made of a variety of materials, including polyester, urethane, reactive resin, and ceramic.

After the coverstock is applied, the ball is placed in a mold and heated to a high temperature. This process, called curing, allows the coverstock and weight block to bond together and creates the final shape of the ball.

Once the ball is cooled, it is inspected for any imperfections or defects. If the ball passes inspection, it is polished and painted with the desired design or color. Finally, the ball is drilled with holes to fit the individual bowler’s hand.

Materials Used in Bowling Balls

Bowling Ball


Polyester is the most common material used in bowling balls. It is a durable, low-cost material that is ideal for beginners and recreational bowlers. Polyester bowling balls are typically lightweight and have a smooth surface.


Urethane is a softer material than polyester, and it provides more hook potential on the lane. Urethane bowling balls are a popular choice for intermediate bowlers who are looking to improve their game.

Reactive Resin

Reactive resin is a high-performance material that provides maximum hook potential on the lane. Reactive resin bowling balls are typically used by advanced bowlers who are looking to improve their scores.


Particle bowling balls are made of a combination of reactive resin and microscopic particles. This material provides even more hook potential than reactive resin and is used by professional bowlers.

Different Types Of Bowling Balls

Bowling Balls

Bowling balls come in various types, each designed to cater to different bowlers’ needs based on their skill level, bowling style, lane conditions, and personal preferences. We will explore the different types of bowling balls available in the market.

Tenpin ball

The most common type of bowling ball is the tenpin ball. It is designed for tenpin bowling, which is the most popular form of bowling played in the United States. Tenpin balls typically weigh between 12 and 16 pounds and have a diameter of 8.5 inches.

Duckpin bowling ball

Duckpin bowling is a variation of tenpin bowling that is played in the Northeastern United States and parts of Canada. The duckpin ball is smaller than the tenpin ball, with a weight between 2 and 3 pounds and a diameter of 4.75 inches.

Candlepin bowling ball

Candlepin bowling is another variation of tenpin bowling that is popular in the Northeastern United States and parts of Canada. The candlepin ball is similar in size to the duckpin ball, with a weight between 2 and 3 pounds and a diameter of 4.5 inches. However, the candlepin ball has no finger holes, and the bowler must hold the ball in the palm of their hand.

In summary, there are different types of bowling balls specific to certain bowling games. Tenpin balls are the most common type of bowling ball and are used for tenpin bowling. Duckpin balls are smaller and used for duckpin bowling, while candlepin balls are similar in size to duckpin balls but have no finger holes and are used for candlepin bowling. It is essential to choose the right type of bowling ball for the game you are playing to maximize your performance.

What Is Inside Of A Bowling Ball – Types Of Bowling Ball Cores

Bowling balls are made up of several components, including the coverstock, weight block, and filler material. The weight block is the most critical component, and it determines the ball’s overall weight, shape, and performance. In this article, we will explore the different types of weight blocks, also known as cores, found inside bowling balls.

Symmetrical Core

A symmetrical core has the same shape and mass distribution along the ball’s vertical and horizontal axis. This type of core offers a smooth and predictable motion on the lane, making it an excellent choice for beginners and those with slower ball speeds.

Asymmetrical Core

An asymmetrical core has an uneven mass distribution, with more weight on one side of the ball than the other. This type of core provides a more angular and aggressive motion on the lane, making it ideal for bowlers with faster ball speeds and higher rev rates.

Pancake Core

A pancake core is a simple flat-weight block that provides a predictable and low hook potential. This type of core is often used in plastic and spare bowling balls.


The weight block or core is a crucial component of any bowling ball, as it determines the ball’s weight, shape, and performance characteristics. The different types of cores, such as symmetrical, asymmetrical, pancake, high RG, and low RG, offer varying levels of predictability, aggressiveness, and hook potential. By understanding the different types of cores, bowlers can choose the right ball to suit their style and the lane conditions they are playing on. With the right ball in hand, bowlers can improve their game and enjoy the sport of bowling even more.

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