Graphite Metallizing Corporation announced additional sizes of its GRAPHALLOY 453 family of self-lubricating bushings. The bushings are intended for use in severe industrial applications where temperatures reach 750°F (400°C) or higher. The graphite/metal alloy bushings are designed to operate without lubrication in applications including heat-treat ovens, furnaces, conveyors and other environments where oil and grease cannot be used. GRAPHALLOY bushings operate at longer intervals without the need for maintenance, which reduces costly downtime. They are an excellent choice for applications where service and maintenance tasks are cumbersome or difficult to perform.