FS‑3 flexible ball bearing acts as core wave‑generator bearing for miniature harmonic reducers. Ultra‑thin rings produce reversible elliptical elastic deformation and bear cyclic alternating stress. Made of high‑grade bearing steel with precision ground raceway for low‑friction smooth rotation. Widely used in micro collaborative robot joints, miniature harmonic actuators and compact precision automation equipment.

Flexible ball bearings feature thin-walled flexible rings that undergo controlled elastic deformation during operation, enabling precise motion transmission through wave generator assemblies. Available in standard, ultra-thin, and high-fatigue designs, with bore diameters ranging from 20mm to 300mm. These bearings deliver high torsional stiffness, zero backlash, and exceptional positional accuracy, making them ideal for harmonic drive reducers, robotics joints, aerospace actuators, and precision positioning systems.