Ulkokehällä

Ulkokehällä is a Finnish term used to describe the position on the outer edge of a circular object, such as a wheel or ring, and can also be used figuratively to indicate something located on the periphery or outer boundary of a system. In technical texts it refers to components or measurements that are located at or near the outer rim, rather than toward the center.

Etymology and usage notes: the word is formed from ulko- meaning outer and kehän or kehä meaning ring or circle, combined with the locative suffix -llä to denote position on the surface or boundary. Ulkokehällä can thus describe both physical placement (on the outer rim) and metaphorical periphery in descriptive writing. The term is primarily found in mechanical, engineering, and technical contexts, and is less common in everyday Finnish.

Contexts and examples: in mechanical engineering or sensor descriptions, one might refer to elements located on the outer rim of a wheel or disk as situated “ulkokehällä.” For example, a sensor positioned on the outer part of a wheel may be described as being “renkaan ulkokehällä.” In broader discourse, the phrase can convey peripheral or marginal status within a system or process.

See also: kehä, rengas, ulkoinen, sijainti-ilmaisut.