The grinding of case-hardened gears after the heat treatment ensures a high quality regarding the gear geometry and tooth surface topography. If the limits of the gear material are exceeded during this process. the mechanical and thermal influence from the grinding operation can lead to tempering effects and re-hardening of the gear teeth. As part of the research project FVA (Forschun... https://parisnaturalfoodes.shop/product-category/zinc-chelate-25-mg/