A high-quality automobile camshaft gear needs the following important characteristics:

1. High strength: The camshaft gear needs to have sufficient strength to withstand the working requirements of the engine in high-speed rotation and high-pressure environment, so as to ensure the reliability and stability of the transmission system.

2. Wear resistance: The camshaft gear is easy to be worn under the condition of long-term high-speed rotation, so it needs to have good wear resistance, prolong the service life and reduce the maintenance cost.

3. Good heat treatment performance: The camshaft gear needs proper heat treatment process to improve hardness and wear resistance, while maintaining certain toughness to meet the working requirements in high temperature and high pressure environment.

4. Precision machining: The tooth surface and meshing parts of the camshaft gear need to be precision machined to ensure the accuracy and smoothness of the gear, reduce noise and vibration and improve transmission efficiency.

5. Good corrosion resistance: The camshaft gear should have good corrosion resistance, be able to resist high temperature, high pressure and chemical corrosion when the engine is working, and keep the surface smooth and functional integrity.

6. Lightweight design: In order to reduce engine load and improve fuel economy, high-quality camshaft gears need lightweight design to reduce inertia load and improve power transmission efficiency.

To sum up, a high-quality automobile camshaft gear needs high strength, wear resistance, good heat treatment performance, precision machining, corrosion resistance and lightweight design to ensure its reliability, stability and durability in engine work.