DCB Specifically designed for the high-speed, continuously running machinery of the can-making industry, Eaton Airflex DCB units feature the combination of an air-actuated disc clutch and a spring-applied disc brake. Together these components provide all the capacity and stopping power required to execute extremely fast stops. Features Clutch capacities available up to 75,000 lb•in (8,475 N•m) Brake capacities available up to 55,000 lb•in (6,215 N•m) Available in two standard sizes: 21DCB, 29DCB