German maerkisches federn springs, maerkisches federn models, maerkisches federn prices

maerkisches federn springs are helical springs that withstand axial tensile forces. Extension springs are generally manufactured from materials with a circular cross-section. When not under load, the coils of an extension spring are usually tightly wound together with no gaps. Many different end fittings or "hooks" are used to ensure the source of tensile force for the extension spring. The working principle of extension springs is opposite to that of compression springs. Compression springs exert a reactive force when compressed, while extension springs exert a reactive force when extended or pulled apart. When the two ends of an extension spring are pulled apart, the spring attempts to pull them back together. Like compression springs, extension springs also absorb and store energy. However, unlike compression springs, most extension springs are typically under a certain degree of tension even when there is no load. This initial tension determines how tightly the extension spring is coiled when there is no load.

maerkisches federn spring structure

A torsion bar spring itself is a torsion bar made of spring steel. The cross-section of the torsion bar is usually circular, with a minority being tubular or rectangular. The shapes of its two ends can be made as splines, square, hexagonal, or cylindrical with flat surfaces, so that one end can be fixed to the vehicle frame and the other end to the suspension arm, which is connected to the wheel.

maerkisches federn spring material

Disc springs are mostly manufactured from cold-rolled or hot-rolled strip steel, plate steel, or forged blanks (forging ratio not less than 3). The materials commonly used are spring steels such as 60S2MA and 50CVA. For thicknesses less than 1.1, high-carbon steel can also be used. The performance requirements for disc spring materials are that, after heat treatment, they should possess high ultimate strength, yield strength, elastic limit, and fatigue limit, while also requiring high impact toughness, plasticity, and the highest possible yield-to-tensile strength ratio. To meet these performance requirements, high-quality cold-rolled or hot-rolled steel strips or plates are widely used domestically and internationally. For disc springs with a thickness greater than 6 mm, forged blanks are used. The steel grades are mainly medium-carbon low-alloy spring steels (silicon-manganese or chromium-vanadium spring steels) and high-quality carbon spring steels. Due to the high silicon-manganese content and low chromium-vanadium content in China, disc springs mainly use 60Si2MnA. Comparing the two, 50CrVA has better hardenability, temper stability, and impact toughness than 60Si2MnA, but 50CrVA is more expensive and suitable for applications with high fatigue requirements.

maerkisches federn spring classification

1) Ordinary disc springs, trapezoidal cross-section disc springs, conical trapezoidal cross-section. Disc springs: Simple shape and structure, widely applied. They can be used individually, in opposed pairs, stacked combinations, or composite disc spring groups, bearing static or variable loads. They are used as heavy-duty buffer and vibration-damping springs in heavy machinery, aircraft, artillery, and other weapons. 2) Diaphragm springs: Mainly used in automotive clutches, functioning through the separation fingers and the disc spring part. 3) Wave washers: Widely used in mechanical seals; can be further developed into spiral wave springs. 4) Slotted disc springs: Typically used in clutches, such as those in lathes, automobiles, and tractors. 5) Circular plate disc springs: The cross-section is circular plate-shaped, deforming into a truncated cone shape under load. Simple structure, high stiffness, used for special requirement occasions. 6) Spiral disc springs: Possess dual characteristics of disc springs and helical springs, allowing for different stiffness requirements. 7) Wave cylindrical springs (wave springs): Formed by overlapping wave washers into a cylindrical shape, allowing for larger deformation.

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