LESJÖFORS INDUSTRIAL SPRINGS & PRESSINGS GMBH

Disc springs (also called Belleville springs) are geometrically a cylindrical washer with a slightly conical shape. It is used as compression spring and is the best solution when forces are high and travel relatively limited. This type of springs can or in parallel, which increases travel and/or force.

A Garter Spring is a circular ring made from a coiled helical spring bent into a circle and with the two ends connected to each other. A garter spring will create a radial force directed towards its center when the radius of the garter spring increases.

The number of turns is individually determined and can be as much as 50. Different coiling techniques exist to give the material the desired curvature that matches the torque-rotation requirements. The spring has many similarities with clock springs, but have a much larger operating range in terms of number of turns.

A snap or retaining ring is a fastener or retaining ring that consists of a semi-flexible metal ring with open ends that can be snapped into place. It fits in a groove on a shaft or inside a bore and locates the shaft axially in one direction.

Most common ends are different types of end loops and hooks, there are also a wide range of other mechanical attachment possibilities such as coiled in and screwed in attachments. Examples are, half hooks, German loops, English loops, extended hooks, side hooks, side loops, screw plugs and screw shackles.

Torsion bar springs is a good alternative to clock springs or helical torsion springs, when a rotational torque is needed in applications where the spring shall fit into a space that is limited radially, but with lots of space axially.

Many applications require two similar springs, but with one right-hand coiled and one left-hand coiled. In some cases, these two springs can be combined into a double spring, which has one right and one left-hand coiled spring body connected to each other.

Volute Springs are used as compression springs and made from flat material coiled to a volute. The coils of the material overlap each other and are guided radially by each other during compression, thus giving the spring a stability against buckling that cannot be achieved with conventional compression springs.

Multi-coil wave springs are made from flat-rolled spring wire that is coiled to a helical shape and the coils are at the same time given a sinus shaped wave form. The force-deflection relation is created by flattening out the wave form when the spring is compressed. The function is hence like a helically shaped leaf spring.

Wire forms can have a shape that is limited almost only by fantasy. Many of them have some kind of spring functionality, for example some quick fastening applications. In most products, the material is stressed in bending and they can be looked upon as leaf springs made from wire. Wire forms are manufactur