Precision Machined External Spur Gears

As core torque transmission components in power transmission systems, these disc-shaped structures achieve rigid meshing with mating gears or racks through involute tooth profiles uniformly distributed along the outer circumference. The center features a precisely machined through-hole and keyway interface for secure connection to drive shafts, ensuring smooth power output under high-speed rotation or heavy-load conditions. They are widely used in automated conveyor lines, industrial reducers, and precision mechanical transmission modules.

The core of manufacturing these parts lies in strictly controlling tooth profile accuracy, helix deviation, and tooth surface roughness to reduce meshing noise and extend service life. For the thick-walled disc characteristics shown, it is essential to control the coaxiality of the inner hole relative to the outer circle and the flatness of the end face to prevent radial runout or concentrated contact stress after assembly. The machining process typically involves turning reference surfaces, milling tooth profiles, and subsequent heat treatment and precision grinding, requiring high standards for tool path planning and clamping rigidity.

Leveraging high-precision vertical machining centers and CNC lathes at our Dongguan facility, combined with Coordinate Measuring Machines (CMM) and gear inspection instruments, we ensure closed-loop control of critical dimensions and geometric tolerances to guarantee consistency in batch deliveries. Buyers need to provide 2D/3D drawings specifying material grades (such as #45 steel, alloy steel, or stainless steel), module, pressure angle, heat treatment hardness requirements, and surface finish standards. We evaluate costs and lead times based on drawing complexity, material utilization, and inspection standards, supporting full-cycle services from single-piece prototyping to large-scale mass production.