The most popular and widely-used inspection method for gears is currently the double flank gear rolling inspection. However, the more realistic, i.e. closer to the gear’s actual operating conditions (e.g. in a gearbox), inspection method is by using the single flank gear rolling inspection where both workpiece and master gear are at a fixed centre distance. The right and left flanks of the workpiece are inspected by single flank contact of the master gear. Any changes in the angle of rotation are identified during this inspection process.

		Traditional layout of a single flank gear rolling inspection
		In this layout, all right and left gear flanks are inspected simultaneously (middle: workpiece, right / left: a master gear each).

Evaluation is done by identifying the deviation of the measured angle to the angle of rotation, from which the given tolerances as per DIN 3960 and 3963 – right hand and left hand flank – can be calculated for:
- the single flank radial composite error Fi',
- the single flank tooth-to-tooth deviation fi',
- the runout deviation Fr' and
- the short wave-length component.

Comprehensive evaluations are possible with this software and they can also be customised to your own requirements.

Typical graph top window: evaluation left flank lower window: evaluation right flank