GB/T 18842-2002

GB/T 18842-2002 specifies the dimensions, tolerances, and inspection methods for taper cylindrical involute splines, which are used to transmit torque and motion between shafts and hubs in mechanical systems. This standard is applied in automotive, aerospace, and industrial machinery where precise angular positioning and high load capacity are required, particularly in applications requiring self-centering or backlash elimination. It provides a technical basis for design, manufacturing, and quality verification of spline connections in power transmission systems.