German hahn springs hahn models hahn prices

hahn springs are energy accumulators; they store energy but cannot release it slowly. To achieve slow release, a "spring + high gear ratio mechanism" is required, commonly seen in mechanical watches. Helical springs have been applied since ancient times; ancient bows and crossbows are two types of helical springs in a broad sense. They can be classified by appearance into ordinary cylindrical helical springs and variable-diameter helical springs (see figure); by helix direction into left-hand and right-hand springs. Cylindrical helical springs have a simple structure, are easy to manufacture, and are the most widely used, with a linear characteristic curve.