1) Features of Spiral Bevel Gear

• To address the challenges posed by electric vehicles, their characteristics are evolving towards ‘low inertia’ and ‘high-speed operation’. Replacing traditional alloy steel with low-carbon steel carburised and quenched, or exploring high-performance powder metallurgy materials, enables weight reduction while maintaining strength.
• Designs now incorporate ‘low drag loss’ principles, optimising gear tooth microgeometry to minimise oil churning losses in oil-bath lubrication systems. This proves crucial for extending electric vehicle range.

2) Functions of Spiral Bevel Gear

• Future functionality will transcend mechanical transmission. By integrating micro-sensors or utilising gear surfaces as sensing media, real-time monitoring of meshing stress waves and temperature variations enables these components to serve as intelligent front-end nodes within predictive maintenance systems.
• Within digital twin frameworks, the real-time load spectrum of each physical gear synchronises with its virtual counterpart, allowing continuous prediction and optimisation of its remaining service life and performance degradation.

3) Application of Spiral Bevel Gear

Applied to high-speed electric drive axles (eAxles), its performance boundaries are continually being pushed. Simultaneously, in the transmission systems of heavy industrial robot joints and the hips of large legged robots (such as Boston Dynamics' Atlas), the demand for high torque density, high overload capacity, and impact toughness is propelling spiral bevel gear technology towards new frontiers.