Bearings for Aircraft Thrust Reversers and Engine Access Doors

Slowing an Aircraft After Landing

When a commercial aircraft touches down, part of the force that helps slow it comes not only from the wheel brakes, but also from the thrust reverser—a mechanism that redirects engine airflow forward to generate reverse thrust. RBC Bearings manufactures the actuators and valves that make this movement possible, along with the thrust reverser bypass door, a key component of the system. This application is part of a broader engine systems portfolio that includes engine mounts, pylon attachments, variable bleed valve supports, actuation systems, bell cranks, crankshaft supports, stator vane bushings, accessory gearbox mounts, and synchronizing ring levers. The portfolio also includes afterburner nozzle actuation for high-performance military engines, as well as oil cooler mounts and linkages, thrust link pins, seals, and the ducting solutions discussed elsewhere in this series. Each of these components requires bearings capable of operating under continuous vibration and the wide temperature variations encountered during takeoff, cruise, and landing. These systems are supported by RBC's proprietary technologies, including AeroCres leading- and trailing-edge track rollers, ArmorGuard protection against stress corrosion and fretting, and X-Guard wear strips, all designed to extend the service life of components subjected to repeated engine operating cycles. The thrust reverser is one of those aircraft systems that passengers rarely notice, yet it is activated during virtually every commercial landing. The fact that this mechanism depends on highly reliable bearings and actuators is one of the reasons why aerospace maintenance standards are among the most demanding in the aviation industry.