Object of the present invention is to provide an apparatus for the metrological checking of {TAIL ~ crankpins} rotating with an orbital motion, in the course of a grinding operation, or in a similar one, that can provide good metrological performance, high reliability and small forces of {HEAD ~ inertia} 
Object of the present invention is to provide an apparatus for the metrological checking of { TAIL ~ crankpins } rotating with an orbital motion , in the course of a grinding operation , or in a similar one , that can provide good metrological performance , high reliability and small forces of { HEAD ~ inertia }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD