The term “four-piece” ball is often used not only in the industry but also among serious golfers who understand the layering of golf balls. What does that mean exactly? It would be easier to think of pieces as layers, the same way you imagine a cross section of the earth.
Take the VERO X1, our 4-piece (or 4-ply) Tour level ball, for example. It starts with the core, which is the central mass of the sphere, then the mantle surrounds the core. It still is nanolayers – a transparent, thin layer of nanoparticles distributed in and around the coat. And finally you have the sheath (cast urethane) which is tightly bonded to the jacket thanks to the nano-layer.

In general, four-piece balls – like OnCore’s VERO X1 and upcoming VERO X2 – are designed for players with swing speeds of 100 to 120 mph. They typically feature high compression – mid 80s to mid 90s – and require high club head speed to maximize distance. But that’s another blog post for another day. Back to nanolayers…
What if you cut open the VERO X1? Would you be able to clearly see all four layers, including the nanolayer? The answer is no. The core is clearly green and unmistakable, the mantle is a thin, detectable ring around it, and the cover… well, that’s what you always see. However, the nanolayer would not be visible to the naked eye due to how thin it is.
OnCore Golf is a tech-driven company and CEO Keith Blakely has over 40 years of nanoscience experience. OnCore Senior Technical Advisor John Calabria has worked with proprietary materials and layers throughout his rich career, including Titleist, TaylorMade and Maxfli.
So it’s only logical that OnCore will use nanoscience to build the perfect golf ball. That said, what exactly does nanolayering do? It gets interesting there. The nano-layer directly influences the spinning characteristics of the VERO X1, affecting the energy exchange between the sheath and the jacket. Provides consistent spin and improved ball durability across the range of strokes encountered during a round of golf.

Nanotechnology – dealing with dimensions and tolerances of less than 100 nanometers – is used in all kinds of products to improve them: energy, food, medicine, sunscreen, cars – the list goes on.
And through OnCore, it was used for the first time in the history of the game in the production of golf balls.
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Additional links:
What are nanoparticles?
What are nanoparticles? definition, size, uses and properties. TWI. (Sun). Source: August 2022, z https://www.twi-global.com/technical-knowledge/faqs/what-are-nanoparticles
Explore nanotechnology
ScienceDaily. (Sun). Nanotechnology. ScienceDaily. Source: August 2022, z https://www.sciencedaily.com/terms/nanotechnology.htm
Wikipedia: Nanoparticles
Wikimedia Foundation. (2022, August). nanoparticle. Wikipedia. Source: August 2022, z https://en.wikipedia.org/wiki/Nanoparticle
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