Square Shaft Spur Gear Transmission Component

A metal rotary component featuring external spur teeth and a central square drive shaft, serving as the core power transmission element in micro reduction mechanisms. The disc-shaped wheel body is responsible for torque engagement and transmission, while the top square shaft head enables rigid connection with motor rotors or couplings to prevent rotation slippage. The bottom smooth shaft section is designed to fit bearing supports, ensuring rotational stability.

Manufacturing this composite structure requires strict control over gear profile parameters (module, pressure angle) and tooth surface finish to minimize noise and wear during multi-stage meshing. Additionally, the coaxiality between the central square shaft and the gear tip circle must be rigorously controlled to prevent rotor scraping or vibration caused by eccentricity during high-speed operation. To mitigate stress concentration risks at step transitions, fillet designs are optimized and precise deburring is performed to avoid sharp edges damaging mating parts.

Dongguan Kangsile Precision Technology leverages CNC turn-mill composite machining centers and gear meshing testers to provide one-stop manufacturing for such geared shaft components, from blank forming to precision machining. The factory is IATF16949 and ISO 9001 certified, equipped with automatic image measuring instruments and 3D contour profilers. These tools allow for strict full inspection of key gear profile errors, bore tolerances, and geometric deviations, meeting the high reliability demands of core transmission components in power tools, smart home devices, and industrial modules.