2020802

2020802 Spiral Bevel Gear is a high-performance transmission component specially developed for electric tools. Its parameter design and process selection are fully matched with the high-speed and heavy-load working characteristics of electric tools.

This gear has a pressure angle of 20°, a module of 1.5, 18 teeth, and a spiral angle of 35°/L, with a shaft diameter of 12mm, an outer diameter of the tooth part of 29.165mm, a total length of 145.5mm, and a single weight of 0.147kg. It is made of high-quality 20CrMnTi alloy structural steel as the base material, and manufactured through multiple precision processes including normalizing, turning, rough grinding for datum correction, keyway machining (CNC machining center), gear milling, heat treatment correction, shot blasting, outer diameter grinding, wire brushing, and full appearance inspection. Among them, the two processes of rough grinding for datum correction and heat treatment correction ensure the geometric tolerance accuracy of the gear; keyway machining by the machining center improves the adaptability and stability of transmission; shot blasting and outer diameter grinding processes enhance the gear surface quality and assembly accuracy, which can fully meet the transmission requirements of electric tools for long-term high-frequency operation.