A Crankshaft Main Thrust Bearing is used to control the axial movement of the crankshaft in an engine. It is located at the center main or rear main bearing location and is made up of two washers or half-shells, which are made of a durable material. The washers are sandwiched between the crankshaft and the engine block, and held in place by a thrust bearing cap.Attributes: • Reduces friction between the crankshaft and the engine block• Absorbs shock and vibration from the crankshaftApplications:A Crankshaft Main Thrust Bearing is used to transmit the thrust load from the crankshaft to the engine block.