The dish washer, also known as Belleville spring washer, was invented by Belleville, a Frenchman. The dish washer is an anti-loosening washer designed for bolt-to-bolt connections. It is designed and manufactured according to DIN 6796 standard and is used for connecting medium or high strength bolts and bolts.
The advantages of the dish washer are that the upper and lower surfaces have a slight radian, resulting in an incremental characteristic curve. Although the outer diameter is small, the load is large. It is especially suitable for small assembly space and large load requirements.
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