Bowling Ball Rg Meaning

The bowling ball rg is one key measurement engineers use to identify how the mass distribution inside a bowling ball is concentrated.

Bowling ball rg meaning. 1 usbc defines rg of a bowling ball as a measurement in inches and is the distance from the axis of rotation at which the total mass of a body might be concentrated without changing its moment of inertia. The lower the rg the sooner the ball is designed to roll. If you were to create a spherical core that was 2 46 inches wide and 2 8 inches tall it would look like a perfect sphere on first glance although upon close inspection you would be able to tell that it was actually a slightly squished ball. The lowest allowed by the usbc is 2 43 the highest is rg 2 80.

Well rg means radius of gyration. In a bowling ball the usbc has required all balls have a low rg no shorter than 2 46 inches and the high rg can be no longer than 2 8 inches. If you set out to determine how to select the best bowling ball rg then there are three factors to help you to make the right choice. Think of it like a.

The radius of gyration is an account of the location of the mass inside a given bowling ball and relates whether the ball mass is concentrated toward the center of the ball low rg toward the coverstock of the ball high rg or between the two points medium rg. Sign up for virtual lessons by clicking here. Matching balls to conditions the radius of gyration rg is one key measurement. The bowling ball differential rg is one key measurement engineers use to identify the difference of the rg of a given bowling ball s x axis weight block vertical measurement compared to the rg of the y or z axes weight block.

The rg of a bowling ball tells you how soon the core is designed to roll. The meaning of the ratings a ball with a high rg rating close to 2 800 or 10 depending on which scale the manufacturer uses will have a mass distributed toward the cover which is often referred to as cover heavy this type of mass distribution will give your.