Stacked Gear Assembly with Compound Spur Gear and Concentric Bore Hub for Press-Fit

Tooth profile error, bore-to-pitch circle concentricity, and stage face-to-face runout are inspected using your drawing as reference during initial part approval on stacked brass compound spur gear. Foshan Zhengshang Precision Hardware (Foshan, Guangdong, ISO 9001, ISO 14001, ISO 45001 certified) gear-forms and CNC-mills this stacked brass compound spur gear with concentric bore hub for press-fit at their about 2,000 m² Foshan facility using gear forming, milling & turning, and Swiss machining. Bore-to-pitch circle concentricity above 0.015 mm creates eccentric rotation that generates cyclic transmission error at each tooth mesh in drone propulsion, medical device drive, and automotive actuator applications; eccentricity above pitch circle radius / 1000 exceeds the design limit for AGMA Quality 9 and higher accuracy classes. Zhengshang serves automotive, medical equipment, drones, energy storage, and communication compound spur gear applications using gear forming and precision CNC machining. The plant works across fasteners and toys and gifts industry sectors. To quote, we need your drawing showing AGMA quality class, bore diameter, stage geometry, and brass grade. For a gear quotation from our foshan engineers.