Nearconcentric

Nearconcentric is a term used to describe objects or shapes that are almost, but not perfectly, concentric. Concentric objects share the same center point. Therefore, nearconcentric objects have centers that are very close to each other, but not identical. This slight displacement of the centers is what differentiates them from truly concentric objects.

The concept of nearconcentricity is relevant in various fields, including engineering, manufacturing, and geometry. In engineering, for instance, components that are designed to be concentric might exhibit nearconcentricity due to manufacturing tolerances or assembly inaccuracies. This slight deviation can sometimes have practical implications, depending on the precision required for the application. For example, in the context of bearings, nearconcentricity of races can lead to uneven wear and reduced performance.

In optics, lenses or optical elements that are nearconcentric may affect the quality of image formation. Similarly, in mechanical systems, nearconcentricity of rotating parts can introduce vibrations or imbalances. While the difference between concentric and nearconcentric might be visually imperceptible in some cases, it can be significant in applications where precise alignment is critical. The degree of "nearness" is often defined by a specific tolerance or acceptable margin of error.