TTR ECA 4402 Graduation drum for absolute Built-in angle encoder without integral bearing Number of lines: 10010 Accuracy of graduation: ± 2.5''. drum geometry: outside Ø 127,64 mm, inside Ø 80 mm, bolt circle Ø 95 mm, 6 holes Ø 5.5 mm, without centering collar Mechanically permissible Speed: 6250 min-1