Hammond & Irving, Inc. is a premier supplier of seamless rolled rings to the U.S. Bearing market and beyond. We specialize in ... Bearing Quality alloy steels used in applications that keep the world turning. Producing to ASTM, AMS, or custom specifications, we forge rings of various sizes and geometries, for the production of Inner and Outer Races, Spacers, and Housings. Our CNC controlled ring roller and forging presses yield uniform sizes, ensuring easy machining and minimal stock removal. Common grades are 52100, A485 Mod 1, A485 Mod 2, 4140, 4145, 8620, 4320, & 3310. read more