Abstract: A test apparatus for testing a gear has a clamping device for clamping the gear. The device includes a single support block having one passage, extending along an axis, and a transversal first shoulder. The device further includes a securing bolt having a second shoulder provided with a pin axially extending through the passage and with a tightening member tightened on the pin so as to axially clamp the gear between the two shoulders. The support block further has a fixed protrusion axially projecting with respect to the first shoulder and having an outer surface designed to carry the gear.

Abstract: A test apparatus for testing a gear having a central axis has a force application column moveable along a force application axis (F) so as to apply a force onto the flank of a tooth of the gear, and a clamping device having a clamping axis (A) orthogonal to and spaced apart from the force application axis. The clamping device secures the gear in such a manner that the central axis of the gear coincides with the clamping axis (A). The column has a first and a second end and one intermediate portion, which is elastically deformable so as to allow for a displacement of the second end in relation to the first end along a displacement direction (D1) orthogonal to the clamping axis (A) and to the force application axis (F).