Air spring having an elastomeric flexible member

An air spring comprising:

• a first attachment component;
• a second attachment component;
• an annular flexible member made of elastomeric material and having first and second end portions tightly attached to said first and second attachment components, respectively;
• said end portions having respective sealing beads defining respective seals with said attachment components;
• said flexible member and said attachment components conjointly defining a closed off air spring volume which can be charged with pressurized air;
• at least one of said attachment components having an inner wall surface facing toward and delimiting said closed off air spring volume;
• said flexible member having an end face at at least one of said end portions;
• an elastic peripherally extending sealing projection formed on at least said one end portion so as to project away from said end face and so as to define a smallest diameter of said flexible member;
• said sealing projection being configured to face directly toward said air spring volume so as to be subjected to said charge of pressurized air;
• and,
• said sealing projection having an inherent stress causing said sealing projection to lie in sealing contact engagement against said inner wall surface of said one attachment component corresponding to said one end portion.