German kreitzberg springs kreitzberg models kreitzberg prices

kreitzberg springs are elastic elements with several 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. This product is a thin, ring-shaped elastic metal element composed of several peaks and valleys. It is made from high-quality spring steel 65Mn (60Si2MnA/50CrVA /0Cr17Ni7Al /SUS304), heat-treated using specific methods. Depending on the specific conditions, the 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. They require very little installation space and have special functions such as noise reduction and vibration damping.

kreitzberg spring installation and removal

Hydraulic hand pallet trucks are widely used in production. During maintenance of their pressure oil pumps, we found that the pressure spring responsible for returning the piston rod of the pressure oil pump and the pressure arm of the truck has a wire diameter of n and stores an elastic force of up to 1000N, making its assembly and disassembly very difficult. This often delays fault resolution time, directly affecting production progress. Several measures were taken, but none were effective. Therefore, I designed a pressure spring assembly/disassembly tool as shown in Figure 1. The tool consists of a lower pressure rod 1, pressure blocks 10, connecting pins 14, nuts 1, spherical washers 12, upper pressure rods 13, positioning sleeves 16, and other components. During operation, rotate the nut 11 to the appropriate position so that the cylindrical head claw of the lower pressure rod 1 contacts the vehicle body 2. The two pressure blocks 10 press symmetrically on the washer 6. Rotate the compression nut n to tighten the pull rod 15, causing the upper pressure rod 13 and the lower pressure rod 1 to move relative to each other, forcing the pressure spring to compress. When the washer 6 separates from the cylindrical pin 7, the pressure roller shaft 9, pressure roller 8, and cylindrical pin 7 can be removed. At this point, loosen the nut 11, remove the assembly/disassembly tool, and take off the pressure spring to disassemble, inspect, and repair the pressure oil pump. The positioning sleeve 16 on the assembly/disassembly tool is a key component. During manufacturing, one end has an internal spherical surface with a slot in the middle, and the other end has an inclined flat surface. It has an interference fit with the pressure rod. It must make good contact with the spherical washer 12 and the ball head of the rod 15. The pressure block 10 and the connecting pin 14 have a clearance fit, requiring flexible rotation. The connecting pin 14 and the upper pressure rod 13 have an interference fit. The connecting shaft 18 and the pressure rod have a clearance fit.

kreitzberg spring materials

Disc springs are mostly manufactured from cold-rolled or hot-rolled strip steel, plate, or forged blanks (forging ratio not less than 3). Common materials include spring steels such as 60S2MA and 50CVA. For thicknesses less than 1.1 mm, high-carbon steel can also be used. Performance requirements for disc spring materials include high ultimate strength, yield strength, elastic limit, and fatigue limit after heat treatment, along with high impact toughness, plasticity, and a high yield-to-tensile strength ratio. To meet these performance requirements, most domestic and international manufacturers use high-quality cold-rolled or hot-rolled steel strips or plates. 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 China's high silicon-manganese content and low chromium-vanadium availability, 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.

kreitzberg spring compensation method for controlling springback

The compensation method for controlling springback involves controlling the geometric shape and dimensions of the die working parts based on the direction and magnitude of the bending part's springback, thereby compensating for the springback after bending. For example, for U-shaped parts with significant bending, the punch face or stripper plate surface can be made arc-shaped, or the punch and die can be made with inclined surfaces at a certain angle. This allows the deformation generated at the arc or inclined areas during unloading to compensate for the springback deformation of the two corners. Extending this concept, the bending compensation method can be used to bend workpieces that are difficult to bend using conventional methods. For the shape shown in Figure 8, the two sides are tightly closed with no forming space. Using deformation springback and correction compensation methods, bending is possible.

Weidou Intelligent Technology specializes in selling German kreitzberg compression springs, kreitzberg extension springs, kreitzberg helical springs, kreitzberg wave springs, kreitzberg constant force springs, kreitzberg torsion springs, kreitzberg bending springs, kreitzberg disc springs, kreitzberg ring springs, kreitzberg leaf springs, kreitzberg torsion bar springs, kreitzberg tension springs, kreitzberg retaining rings, kreitzberg tension springs, kreitzberg die springs. All kreitzberg products are original imports from Germany. We welcome inquiries and orders from customers.