Belt drives — Grooved pulleys for joined classical V-belts — Groove sections AJ, BJ, CJ and DJ (effective system)

This technical specification defines the cross-sectional profiles for grooved pulleys designed for classical V-belt drives. It establishes dimensional requirements for pulley grooves accommodating belt joints, specifically addressing four effective series designated as AJ, BJ, CJ, and DJ. The document details the geometric characteristics necessary to ensure proper alignment and engagement between the drive belts and the pulley wheels. By standardizing these critical interface dimensions, the text provides a consistent framework for the manufacturing and testing of power transmission components. The scope covers the specific shape and size parameters required for the groove sections to facilitate efficient mechanical power transfer in industrial applications. It serves as a reference for engineers and manufacturers involved in the design of belt drive systems where compatibility with the defined series is essential for operational reliability. The content focuses exclusively on the physical specifications of the pulley grooves without addressing installation procedures or performance testing methods beyond the dimensional tolerances.