Lesson 1/Learning Event 1
FIGURE 6. BRAKE SHOES AND BRAKE LININGS.
Brake shoes are made of malleable iron, cast steel, dropforged
steel, pressed steel, or cast aluminum. Pressed steel is usually
used because it is cheaper to produce in large quantities. Steel
shoes expand at approximately the same rate as the drum when heat is
produced by brake application, thereby maintaining the clearance
between the brake drum and the brake shoe under most conditions.