Why is it not allowed to grind the tooth root groove part in gear grinding?The specific reasons are as follows, for reference and understanding.

The requirements for grinding parts in gear grinding are described as follows, for reference

Most carburized and hardened gears are finally processed by grinding teeth to eliminate the heat treatment deformation of carburizing and quenching, and become high-precision hardened gears. Before carburizing and quenching, the tooth profile is pre-processed with a pre-grinding hob to ensure gear grinding. In order to meet the requirements of gear grinding technology and gear manufacturing, the necessary parameters such as tooth grinding allowance and tooth root undercutting.Therefore, the tooth profile of the gear before grinding must meet the following requirements:

The descriptions of web type, solid type and spoke type gears are as follows, for reference.

The selection of gear processing materials depends on the application requirements. Commonly used gear materials are steel (cast steel and forged steel), cast iron and non-metallic materials.The descriptions are as follows, for reference.

The solution of machining planetary gears to produce "geometric eccentricity" is described below for reference.