Introduction to the function of corrugated washers

　　Wave WasherA wave washer is a multi-layered thin metallic ring, each layer of which has multiple peak and valley elastic metal elements. It is commonly used in spacecraft, bearings, flow valves, pressure valves, clutches, vibration isolators, axial plunger pumps, drivers, and other equipment. Wave washers are suitable for bolt and screw connections within the high-strength range of 8.8~10.9 grades. They compensate for bolt and screw connections, preventing tightening, wear, creep, thermal expansion, contraction, and compression of sealing components.

　　1. Wave Washers Distribute Nut Pressure on Connecting Parts

　　Wave washers are used to protect the surface of the connector from being scratched by the nut, distributing the nut pressure on the connector and placed between the connector and the nut. It is typically a flat metal ring used to distribute the nut's pressure on the connected components.

　　Before placing the wave washer, the bottom surface of the weight is set as the zero point of the dial indicator from the axial through-hole. After placing the washer in the groove and adding the weight, the wave peak deformation causes the dial indicator pointer to contract inward. The amount of contraction is the measured elastic index value. This utility model patent technology vertically loads heavy objects under positioning conditions, the force is uniform, the elastic deformation is real, the measurement results are accurate, and the detection operation is convenient.

　　2. Wave Washers Have Special Vibration Damping Functions

　　Wave washers undergo special heat treatment and, depending on the specific situation, the hardness is generally controlled between HRC44-55, with a black surface and good elasticity. Widely used in motors, textile machinery, hydraulic equipment, automobiles, and other industries, they are mainly installed in bearing chambers or holes with appropriate specifications (nominal size), have small installation space, and have special noise reduction and vibration damping functions.

　　The fixation of parts on the wave washer shaft is divided into axial fixation and circumferential fixation. Axial fixation methods include: shoulder or shaft ring fixation, end fixation ring or tapered surface fixation, sleeve fixation, circular nut fixation, and elastic fixation ring fixation. Retaining rings mainly play an axial fixing role, among which the concentricity of the tapered surface plus the retaining ring is higher.

　　3.Wave WasherElastic Index is Easy to Test

　　Wave washers undergo special heat treatment and, depending on the specific situation, the hardness is generally controlled between HRC44-55, with a black surface and good elasticity. Wave washers are widely used in motors, textile machinery, hydraulic equipment, automobiles, and other industries. They are mainly installed in bearing chambers or holes with appropriate Specification (nominal Size), have small installation space, and have special noise reduction and vibration damping functions.

　　The simple testing device for the elastic index of a wave washer consists of a weight, base, screws, feet, dial, and groove. The base is disc-shaped, with the weight inserted into an upward cavity. The middle of the cavity has an axial through-hole for installing the dial rod, which is secured with screws. The bottom of the base is supported by feet.

　　4. The Wave Washer Base Has a Thickened Outer Edge

　　The wave washer base has a thickened outer edge; the upper surface of the baffle ring has an inner arc surface. The manufacturing process is simple, the structure is reasonable, and the baffle ring has good elasticity. Changing the original plane contact to an inner arc contact effectively reduces the working stress of the fixed part, making the fixation firm and the positioning accurate. The thickened layer design improves service life and work efficiency.

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