8mm Outer Dia 4.2mm Inner Dia 0.2mm Thickness Belleville Spring Washer 25pcs

Surface : Add lubricating oil after phosphoric acid . Features: Belleville springs can also be called disc springs are conically formed annular discs which are loaded in the axial direction. It offers a well-developed solution to many engineering problems through a unique combination of high force in a small space.It can be used as a single disc or arranged in stacks. Application: Belleville springs are widely used in mechanical products such as press machine artillery aircraft and other heavy machinery it can also be used as compression springs for automobile and tractor.