Disc spring manufactured by Heiwa Hatsujyo Industry Co.,Ltd..
This is the "spring" processed a disc with a hole in the center into a conical shape .
By compressing a dish-Shaped spring to a disk state, it generate a spring reaction force.
This spring allows large loads, and can make use of its various special qualities by changing the effective height and the thickness ratio.
Compatible with a wide variety of loads by parallel/serial combination, design freedom is high.