Nivelakselin

Nivelakselin, often translated as "universal joint" or "CV joint" in English, is a mechanical component that allows for the transmission of rotational motion between shafts that are not in alignment. Its primary function is to accommodate changes in angle between connected components, enabling movement and flexibility in systems where a fixed, rigid connection would be impossible.

The fundamental principle behind a nivelakselin is its ability to pivot. In its simplest form, a universal joint consists of two yokes, each attached to a shaft, connected by a cross-shaped piece. This cross allows each yoke to rotate relative to the other, thereby accommodating angular misalignment. More commonly, particularly in automotive applications, are Constant Velocity (CV) joints. These joints are designed to transmit rotational power at a constant speed, regardless of the angle between the shafts. This is crucial in vehicles where the drive shafts must articulate to allow for steering and suspension travel.

CV joints are typically enclosed in a protective boot filled with grease to prevent contamination and ensure lubrication. Common types include the Rzeppa joint and the tripod joint, each with its own design for achieving constant velocity transmission. Nivelakselin are vital components in a wide range of machinery, including automobiles, industrial equipment, and agricultural machinery, where they provide essential flexibility and power transmission capabilities.