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General Bearing manufactures Y-47 coupler yoke pins to strict AAR Specifications using high-quality steel that is melted and poured in the USA with full material traceability. The pins are engineered for demanding freight car service and are designed to provide dependable strength, durability, and long service life. Y-47 pins are heat treated in atmosphere-controlled environments to ensure consistent hardness, material integrity, and reliable performance throughout the heat treat process. This controlled process helps produce a durable, high-strength component capable of withstanding heavy loads and harsh operating conditions. With deep inventory, short lead times, and over 80 years of manufacturing experience, General Bearing remains committed to supplying dependable American-made rail components, the company says.