Straight cylindrical involute splines－Metric module, side fit－Part 2：Dimensions

This technical document establishes the dimensional specifications for metric module external spur involute splines with side fit configuration. It forms the second part of a comprehensive series addressing cylindrical involute splines, focusing specifically on the critical size parameters required for interoperability. The outlined measurements define the fundamental geometry necessary for the precise assembly of mating spline components, ensuring consistent clearance and engagement across various mechanical applications. The content encompasses nominal dimensions, tolerance zones, and geometric requirements essential for manufacturing and quality assurance processes. Adherence to these parameters facilitates the replacement of imported components with domestically produced equivalents, supporting industrial standardization efforts. The document serves as a reference for engineers and manufacturers involved in the design and production of power transmission systems utilizing this specific spline type. It provides a unified framework for ensuring compatibility within the mechanical engineering sector, promoting efficiency in the supply chain without compromising performance or safety. This specification aligns with international practices while addressing specific regional manufacturing needs.