STAMPED SPRING SEAT FOR USE IN SPRING BRAKE ACTUATOR, AND SPRING BRAKE ACTUATOR FOR USE IN COMMERCIAL VEHICLES

A spring seat (1) for use in a spring brake actuator (100), preferably parking or emergency spring brake actuator of a commercial vehicle, said spring seat (1) having a longitudinal axis (A) and being adapted to be placed inside a housing (50) of the actuator (100) adjacent a housing base (51) of the actuator (100), the spring seat (1) comprising a first side (11), which in use faces the housing base (51), and a second side (13), which in use faces inwardly away from the housing base (51), wherein on the second side (13) the spring seat (1) further comprising a coupling portion (15) for contacting a compression spring (102) of the spring brake actuator (100), said compression spring (102) being adapted to exert, in use, a force onto a spring brake piston (104) into the direction of its longitudinal axis (A).The invention suggests that the spring seat (1) comprises a central embossment (27) positioned on the second side (13) and inwardly from the coupling portion (15) and essentially conforming the shape of an embossment (51a) of the housing base (51).