The Martin S614 External Tooth Spur Gear is a steel, 14-tooth gear built for 6 diametral pitch and a 14.5° pressure angle, featuring a reboreable bore from 1.0 in to 1-1/16 in. It delivers a 2.666 in outside diameter (2.333 in pitch diameter) and a 1.5 in face width, with a hub diameter of 1.812 in and a hub projection of 7/8 in; overall width is 2-3/8 in and weight is about 1.82 lb. The gear is designed with a hub type described as Hub with No Screw and complies with ANSI Standard B15.1, making it suitable for external-tooth spur drive assemblies where precise, reworkable bore sizing is required.
