Bearings allow the shafts, discs, and airfoils that compress air and extract power from a combustion cycle to rotate freely, making them one of the essential components in aviation engines. Other than that, bearings with high endurance are required for aerospace applications as their features enable them to provide continual outstanding performance despite variations in temperature and air pressure. Several key components of aviation engines and landing gear must be mobile, and the purpose of every bearing is to facilitate two connected surfaces to move either together or independently.

As an example, landing gear bearings are used on aircraft tyres. During landing, the landing gear requires to withstand massive weights, severe shocks, and extreme rapid acceleration. This application necessitates the use of precision-engineered tapered roller bearings composed of carefully chosen materials.

Besides that, control rods on aircraft demand plenty of sealed deep groove ball bearings with spherical alignment. They should be able to withstand huge weights and operate under extreme circumstances such as intense heat and cold. They are constructed such that the spherical seats can accommodate rod bending, specific seats and lubricants for severe working temperatures, including unique corrosion-resistant surface treatments.