German kauffmann springs, kauffmann models, kauffmann prices

kauffmann springs are elastic elements with multiple peaks and valleys on a thin metal ring. They are typically used in applications where the load and deformation are small, requiring low spring stiffness and the application of axial preload. Wave springs are particularly suitable for weight-sensitive applications and those constrained by limited installation space. Typical application areas include aerospace, precision machinery, hydraulic seals, and high-end motors. They are thin, ring-shaped elastic metal elements composed of multiple peaks and valleys. This product uses high-quality spring steel 65Mn (60Si2MnA/50CrVA /0Cr17Ni7Al /SUS304), heat-treated using specific methods. Depending on the specific conditions, hardness is generally controlled between HRC44 and 55. The surface is blackened, providing good elasticity. Wave springs are widely used in industries such as motors, textile machinery, hydraulic equipment, and automotive. They are mainly installed in bearing housings or bores suitable for their nominal dimensions. With minimal installation space, they offer special functions of noise reduction and vibration damping.

kauffmann spring structure

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

kauffmann 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. Performance requirements for disc spring materials include high ultimate strength, yield limit, elastic limit, and fatigue limit after heat treatment, along with high impact toughness, plasticity, and the highest possible yield 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 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.

kauffmann spring functions and applications

Functions: 1) Measurement function. We know that within the elastic limit, the extension (or contraction) of a spring is proportional to the external force. Spring scales are made using this property of springs. 2) Clamping function. Observing various electrical switches reveals that one of the two contacts must have a spring installed to ensure tight contact between the two terminals for good conductivity. If contact is poor, the resistance at the contact point increases, generating more heat when current passes through, which can seriously cause the metal at the contact point to melt. The two metal pins of bayonet lamp holders are also equipped with springs for good contact. The center metal piece of screw-in lamp holders and all contact metal pieces of sockets are spring leaves, whose function is to ensure tight contact for good conductivity. In cassette tapes, a phosphor bronze spring leaf uses the elastic force generated by its bending deformation to keep the magnetic head in close contact with the tape. A long helical spring in a stapler serves to push the staples tightly and, after the front staple is ejected, feeds the subsequent staples to the front for smooth ejection, automatically pushing staples one by one to the front until all are ejected. Many machines' automatic feeding and the automatic chambering of bullets in automatic rifles rely on this function of springs. Additionally, clothespins, ballpoint pens, and pen cap clips use the clamping function of springs to attach to clothes. Applications: 1) Supporting vehicle body weight, meaning that most of the vehicle's weight is normally borne by the springs. 2) Damping road bumps. Helical springs are buffering elements. When the impact force from the road on the wheels is transmitted to the helical spring, the spring deforms, absorbing the kinetic energy of the wheels and converting it into potential energy of the spring, thereby mitigating the impact of the ground on the vehicle body. However, the helical spring itself does not consume energy; the spring storing potential energy will return to its original shape, converting the potential energy back into kinetic energy. If springs are used alone without damping elements, some light vehicles would bounce up and down continuously like acrobats on a trampoline after a single impact. In automotive manufacturing, the axle of an independent suspension is divided into two sections. Each wheel is independently installed under the frame with a helical spring. When one wheel bounces, the other wheel is unaffected, allowing both wheels to move independently, improving the vehicle's stability and comfort.

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