Spiral torsion springs – also called clock springs or hair springs – is a torsion spring that is optimum for installation spaces that are limited axially, but with more space radially. They are made from strip material or flat rolled wire that is wound in a flat, spiral shape.
The coils generally form a linear spiral and have the same coil distance everywhere in the unloaded state. They have many similarities with power springs, but have an operating range that is rarely more than one turn.
The Lesjöfors production range includes clock springs primarily of high-tensile spring steel or stainless steel grades, but also in soft material that is hardened and tempered after forming.
Dimensions
Cold forming maximum material thickness 5,00 mm
Hot forming maximum material thickness 12,00 mm
Special versions and special dimensions are available after individual consultation.
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