German NOVIBRA springs NOVIBRA models NOVIBRA prices

NOVIBRA springs are helical springs that withstand compressive forces. The cross-section of the material used is mostly circular, but rectangular sections and multi-strand steel wires are also used. The springs generally have uniform pitch. Shapes of compression springs include cylindrical, conical, convex, concave, and a small number of non-circular shapes. There is a certain gap between the coils of the compression spring. When subjected to external loads, the spring contracts and deforms, storing strain energy. Compression springs provide resistance to external compressive loads. Compression springs utilize multiple open coils to provide resistance to external compressive loads (such as gravity pressing down on wheels, or body weight pressing on a mattress). That is, they push back to resist external pressure. Compression springs are generally wound with uniform pitch from metal wire and have a fixed wire diameter. In addition, there are conical compression springs, or springs combining conical and straight sections. Depending on the application area, compression springs can be used to resist pressure and/or store energy. Round metal wire is the most commonly used for compression springs, but compression springs are also made from square, rectangular, and specially shaped metal wires.

NOVIBRA spring structure

The torsion bar spring itself is 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 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.

NOVIBRA spring composition

Ring springs are a type of compression spring composed of several inner and outer rings with tapered surfaces. Under axial load P, significant normal pressure is generated between the contact surfaces of the inner and outer rings, causing the inner ring diameter to decrease and the outer ring diameter to increase. Due to this change in diameters, the spring shortens in length; when the external force is removed, since the ring taper angle b is greater than the friction angle, the spring restores its original dimensions under elastic internal forces. When ring springs bear axial P, significant friction is generated between the tapered contact surfaces of the inner and outer rings, dissipating a large amount of energy, while the relationship between force and deformation remains linear. During the loading process, the external force P equals the sum of the spring's internal elastic force and friction force. ABO represents the unloading process, which includes two stages: the AB stage and the BO stage. The AB stage indicates the situation where the load decreases, and the spring's elastic internal force overcomes static friction, gradually restoring the spring to its original state. The inner and outer rings of ring springs are made of high-quality carbon steel or wear-resistant alloy steel. Each ring is first roll-formed to the required shape to improve its load-bearing capacity, and then heat-treated. Ring springs are heavy-duty springs with significant buffering and shock-absorbing capabilities (the ratio of area OABO to OACO can reach 60～70%). They are commonly used in buffering devices for heavy vehicles, artillery, and aircraft landing gear.

NOVIBRA spring applications

1) For blacksmiths: Because leaf springs are made of higher-quality steel, they are a favorite material for blacksmiths. In countries such as Nepal, Bangladesh, the Philippines, and Pakistan, where traditional blacksmiths still produce a large number of tools, leaf springs from scrapped vehicles are often used to make knives and other tools. 2) Used in trampolines: Leaf springs have replaced traditional helical springs in some trampolines (known as soft-edge trampolines), improving user safety and reducing the risk of concussion. Leaf springs are spaced around the frame with "legs" branching from the base frame to suspend the jumping mat, thereby providing elasticity. 3) Used in clutches: The common "diaphragm" in automotive clutches is a type of leaf spring.

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