A thrust bearing is a type of bearing used in band saws or other cutting tools to support axial or thrust loads, such as the force exerted on the blade during cutting operations. Thrust bearings are typically installed behind the blade guide and help maintain proper blade alignment, minimize blade deflection, and reduce wear on the blade and guide components. Roller bearings, ball bearings, or other bearing types can be used as thrust bearings, depending on the specific tool design and application.