A stacked wave spring is a multi-layer wave spring structure characterized by contact between the lower surface of the upper turn and the upper surface of the lower turn. With more than one layer, it is formed by stacking continuous flat wire turns in parallel. This design achieves higher load-bearing capacity without the need to stack multiple individual springs. Its stiffness increases proportionally with the number of turns, delivering greater load capacity and enhanced fatigue resistance. It is particularly well-suited for precision applications where axial installation space is limited.