Carlisle Brake & Friction's MB20 brake block lining, is a premium quality material rated for 20,000# axle loads. The MB20 friction material is specifically engineered to demonstrate consistent performance and resistance to wear over an extensive life cycle, providing the fleet operator with an economical advantage by lowering maintenance costs and vehicle downtime. Excellent resistance to brake fade and consistent brake recovery characteristics, guarantee high performance braking with every stop. MB20 is ideally suited for over-the-road dry freight, general hauling, and most other standard heavy truck vocations.