Brake liners can have many specifications, including:
Material: Brake liners can be made from cast iron, aluminum, or other materials
Thickness: Brake liners can range in thickness from 3 mm to 32 mm, depending on the application
Width: Brake liners can range in width from 25.4 mm to 635.0 mm
Temperature: Brake liners can be designed for use at temperatures up to 260°C, with a maximum continuous temperature of 125°C
Shape: Brake liners can come in different shapes, such as rolls, segments, or cones
Edge markings: Brake shoes can have edge markings that indicate information about the friction material and the shoe itself