The incremental encoder FG 40 (solid shaft) / FGH(J) 40 (hollow shaft) can be deployed in a wide variety of applications to measure the speed of standard, auxiliary and secondary drives in steel and rolling mills, in mining operations as well as in ports and crane systems. When attaching with an insulated coupling (solid shaft) or with optionally available insulating hybrid bearings (hollow shaft) they protect the drivetrain against damaging shaft currents. They offer a high signal quality and, if required, a high pulse rate for dynamic feed-back control across the entire speed range. In particular the rugged foot construction facilitates simple attachment of further encoders at the second shaft end.