Braking apparatus for a mobile storage rack

A mobile storage rack for use in a mobile storage system, comprising:

• a storage rack frame for moving on ground rails;
• wheels carried by said bottom frame, for engaging said ground rails and allowing displacement of said storage rack along said rails;
• shelves carried by said frame for supporting articles;
• and
• a braking apparatus comprising:
• a unitary braking shaft made of a single shaft segment;
• a support structure rotatably carrying said braking shaft in cantilevered fashion, said support structure being attached to said storage rack frame;
• a braking shaft link carried by said braking shaft away from said support structure along said braking shaft, said braking shaft link linking said braking shaft to said storage rack wheels;
• a triggerable brake actuator that acts on said unitary braking shaft to stop the rotation of said braking shaft when triggered and also causing movement of the mobile storage rack;
• and
• a dampener located between said braking actuator and said unitary braking shaft.