Spools for 1 in (25,4 mm) video magnetic tape

This technical specification defines the dimensional requirements and mechanical tolerances for reel assemblies designed specifically for one-inch (25.4 millimeters) videotape formats. The document establishes critical parameters such as flange dimensions, hub diameters, and overall reel width to ensure interchangeability among different recording and playback devices. By standardizing these physical characteristics, the provision facilitates the compatibility of magnetic tape media across various manufacturers and equipment platforms. Detailed specifications address the structural integrity necessary to support high-speed tape transport without deformation or slippage. The guidelines also cover material selection considerations and surface finish requirements to minimize friction during operation. Compliance with these parameters ensures consistent performance in professional video recording environments where precise mechanical alignment is essential for signal quality. The specification serves as a foundational reference for the engineering of reel-based video storage systems developed during the specified period.