Method and device for measuring gear tooth wear

A template (60) for measuring an amount of wear on a first gear (42) tooth of a gear, the template including a first template tooth (62) configured to fit in a space defined between the first gear tooth and a second gear tooth and adjacent the first gear tooth such that an edge (64, 66) of the first template tooth abuts a flank (44, 46) of the first gear tooth with substantially no gaps when the flank is in an unworn condition. The template is configured to be repeatably positionable at a consistent location with respect to an axial direction (100) defined with respect to the gear, a radial direction (102) defined with respect to the gear and a rotational direction (104) defined with respect to the gear, wherein a measurable gap between the edge and the flank corresponds to the amount of wear on the first gear tooth.