Bearings for Rocket Fuel Turbopumps

The Component That Drives Fuel into the Engine

Inside a rocket engine, fuel does not simply flow into the combustion chamber on its own. It must be delivered at extremely high pressure and speed by a turbopump—a critical component for which RBC Bearings develops specialized bearing solutions. These applications are specifically included in RBC's rocket engine portfolio, alongside gimbal thrust bearings and manifolds. These bearings are part of a broader space systems portfolio that covers launch platforms, launch vehicles, guidance systems, rocket engines, advanced engineering, and in-house testing capabilities. RBC Bearings operates 31 manufacturing facilities that actively support flight-critical applications for rockets and satellites, providing both engineering development and validation testing. Bearings designed for turbopumps and rocket applications require lightweight materials capable of withstanding extreme operating conditions, including titanium, stainless steel, aluminum, and elastomers. These components are enhanced through specialized processes such as HVOF coatings, dry-film lubrication, non-destructive testing, heat treatment, cadmium plating, zinc-nickel and copper coatings, aluminum pigmented finishes, hard chrome anodizing, and passivation. The remainder of RBC's rocket applications portfolio includes launch support structures, payload adapters, pressure vessels, propellant handling systems, bellows, gimbals, composite overwraps, solar arrays, antennas, engine hangers, docking hatches, payload fairings, feed lines, structural assemblies, rotary gearboxes, slip rings, and manifolds. Every one of these components must perform flawlessly on its first and only mission. Unlike an industrial bearing, a rocket bearing has no second opportunity and cannot be serviced once the vehicle leaves the launch pad. At BIOSA, we do not distribute space-grade bearings, but the engineering principle behind these components is the same: selecting the right material and manufacturing process based on operating pressure, temperature, and speed. This is the same approach we apply when recommending bearings for pumps and fluid handling systems across Mexican industry.