käigusedel
Käigusedel is an Estonian term that translates to "gear segment" or "gear tooth segment." It refers to a portion of a gear's circumference, specifically the part that carries the teeth. In gear design and manufacturing, the term is used to describe the meshing characteristics and the physical shape of the teeth. A käigusedel is fundamentally defined by its module, pressure angle, and addendum/dedendum. The module determines the size of the teeth, while the pressure angle influences the force transmission and the shape of the contact path. The addendum and dedendum define the height of the tooth above and below the pitch circle, respectively. Understanding the käigusedel is crucial for ensuring smooth and efficient power transfer between mating gears. Variations in the käigusedel can lead to noise, vibration, and premature wear. Therefore, precise manufacturing of the käigusedel is a key aspect of gear production. The term is primarily used in technical contexts related to mechanical engineering, particularly in Estonia.