The Double Flank Gear Test is a quick and simple inspection method for gears.
The basic principle of the Double Flank Gear Test is based on a master gear (a near perfect gear) and a workpiece in tight mesh contact, free from backlash. The inspection machine has one rotational axis which is fixed and one which is movable. The centre distance variations during the measuring process are caused by form errors on the workpiece and are the basis for the quality assessment. Depending on your workpiece geometry, FRENCO provides various types of machines.
The radial double flank gear test is a quick and simple inspection method for gears.
For the double flank gear test, the variations in centre distance during one full rotation are detected and displayed as a roll curve. The roll curve comes up to the radial changing of the specimen compared to a master gear, almost free from errors. Adjusting the gear tester with known centre distances (setting masters) the absolute value is known and can be converted to the radial ball dimension of the specimen. From this, the dimension over balls can be calculated.