The primary piston with plastic functional graft in plate embedded in tandem master cylinder and master cylinder fitted with the penetration of the piston

摘要

A master cylinder includes at least one primary piston and one secondary piston installed in the bore hole of the master cylinder, which pistons are used to create pressure. The primary piston has a body of molded plastic material and is equipped with a functional metallic insert which has the shape of a spherical cap capable of accommodating a push rod.