GB/T 6443-2025 in English

This standard provides detailed specifications for the dimensions and other requirements that should be indicated on the drawings of spur gears with involute teeth. It outlines the necessary data to ensure clarity and consistency in the representation of gear components. The document covers various aspects including geometric parameters, tolerances, and marking conventions. It serves as a reference for designers and manufacturers to follow when creating or interpreting gear drawings. The standard establishes uniformity in technical communication and supports the accurate depiction of gear specifications. It includes guidelines for the presentation of gear profiles, tooth dimensions, and other relevant features. The content is structured to facilitate the proper application of gear-related information in engineering drawings.