K-66 vs. K-55 Cushions

K-66 and K-55 cushions are two common types of billiard rail cushions used in pool tables. They differ in their profiles, materials, and performance. Here's a comparison of both and deeper look at both:

K-66 Cushions:

• Profile: The K-66 cushion has an angular profile with a height of 1 3/16 inches and a base width of 1 inch. The cross-sectional shape resembles a 66-degree angle, which is where the name comes from.
• Material: Typically made from high-quality rubber, such as natural gum rubber, which offers good elasticity and rebound.
• Performance: K-66 cushions are standard for most recreational pool tables in the U.S. due to their reliable bounce and durability. They offer consistent rebound angles and are suited for various playing styles.
• Usage: Found in a wide range of pool tables, including both home and commercial-grade tables. It is considered the standard cushion profile in the industry.

K-55 Cushions:

• Profile: K-55 cushions have a higher profile compared to K-66, with a height of about 1 1/4 inches and a base width of 1 1/8 inches. The cross-sectional angle is around 55 degrees.
• Material: Similar to K-66 cushions, K-55 cushions are also made from high-quality rubber, typically natural gum rubber.
• Performance: K-55 cushions offer a slightly different bounce characteristic due to their different angle. They are often used on carom or three-cushion billiards tables, which require a sharper rebound and more control over the ball.
• Usage: More common on European and carom billiards tables, though some high-end American tables might use them for players who prefer the sharper bounce and different play style.

Key Differences:

• Profile: K-66 has a 66-degree angle, while K-55 has a 55-degree angle.
• Bounce: K-55 cushions tend to give a sharper and faster rebound, which is better for carom billiards, while K-66 cushions offer a more moderate and predictable bounce, which suits pool tables better.
• Table Compatibility: K-66 is used in most American pool tables, while K-55 is often found on carom billiard tables or specific high-end pool tables designed for specialized play.

For most traditional pool tables, K-66 cushions are the go-to choice, while K-55 cushions are preferred for players focused on carom games or who want a different rebound style.