We supply large bearings for oil field drilling exploration for a long time.Types of equipment are mud pumps, swivels, drawworks, crown and traveling blocks, rotary table, blow-out preventers, and well service pumps. Usually, large cylindrical roller bearings with thin cross sections are used. Rotary tables use large thrust angular contact ball bearings.We makes heavy duty bearings that are used in various industries in the US and around the world. Not only must our industrial class bearings provide long in-service life from a rolling fatigue criterion, but they must also hold together structurally from impacts, overloads and occasional high speed excursions. The design of every heavy duty bearing has been optimized to this end, including our large bore bearings.