How to pad the gasket on Shimano 12-speed flywheel with different thickness?

install the steel sheet first, and then install the gasket.

The flywheel is a wheel-shaped accumulator with large moment of inertia installed on the rotating shaft of the machine. When the speed of the machine increases, the kinetic energy of the flywheel increases and the energy is stored; When the speed of the machine decreases, the kinetic energy of the flywheel decreases and the energy is released. Flywheels can be used to reduce the speed fluctuation during mechanical operation. Gasket is made of paper, rubber sheet or copper sheet, which is placed between two planes to strengthen sealing. It is a sealing element arranged between static sealing surfaces to prevent fluid leakage.

a gasket is a mechanical seal between two objects, which is usually used to prevent pressure, corrosion, and natural expansion and contraction of the pipeline between the two objects. Because the machined surface can't be perfect, the irregularities can be filled with gaskets. Gaskets are usually made of sheet materials, such as padding paper, rubber, silicone rubber, metal, cork, felt, neoprene, nitrile rubber, glass fiber or plastic polymer. Gaskets for specific applications may contain asbestos.