Products Description
Flat washer is a mechanical component with a circular structure, usually fitted between bolts, screws or nuts and the connected parts, playing a role in dispersing pressure, protecting surfaces, preventing loosening and shock absorption. Its structure is simple but its functions are diverse, making it an indispensable basic component in mechanical connections.
Although flat washers may seem simple, they achieve a "big effect" in fields such as machinery, construction, and electronics through their "small size" - from protecting the surface of parts to ensuring equipment sealing, from dispersing loads to resisting vibrations. Their design and application reflect the precision value of industrial basic components. When selecting, it is necessary to comprehensively consider the working conditions (load, temperature, medium), material characteristics, and standard specifications to ensure the reliability and durability of the connection.
Product Features
Disperse pressure and protect the surface：When tightening bolts or nuts, pressure is evenly distributed on the surface of the connected parts through flat washers to avoid excessive local pressure causing deformation or damage to the parts. For example, when installing bolts on wooden boards, flat washers can prevent the wood from being fractured by the bolt heads.
Anti-loosening and Vibration Damping：Metal flat washers (especially those with textured or elastic surfaces) can increase the frictional force on the contact surface and reduce bolt loosening caused by vibration; Rubber or elastic gaskets can also absorb vibration energy and reduce noise (such as gaskets for car exhaust pipe interfaces).
Anti-loosening and Vibration Damping：Non metallic flat gaskets such as rubber and polytetrafluoroethylene (PTFE) can be used for pipeline interfaces and container sealing to prevent liquid and gas leakage; Plastic or ceramic flat washers can isolate different metal components, avoiding electrochemical corrosion or current conduction (such as insulation washers in electrical equipment).
Adjust the gap and level：When the surface of the connected component is uneven, flat washers can fill small gaps to make the connection more stable; Gaskets with different thicknesses can also be used to adjust the installation height of components (such as gap compensation in mechanical assembly).
Differences from other washers
Compared with spring washers:The spring washer is spiral shaped and relies on elastic deformation to generate frictional force to prevent loosening, suitable for scenarios with strong vibration; Flat washers mainly serve to disperse pressure and are often used in conjunction with spring washers (flat washers at the bottom and spring washers at the top).
Comparison with lock washers:Locking washers (such as serrated locking washers) are embedded into the surface of the connected part through a toothed structure, providing stronger anti loosening effect; Flat washers focus more on protecting the surface and ensuring uniform force distribution.
