TTR ERA 4800C
Scale drum for incremental modular angle encoder
without integral bearing
Line count:              7000
Grating period:          80.000 µm
Accuracy of the
graduation:              ± 2.5 ''
Geometry of drum:        Outside Ø 178.55 mm,
                         inside Ø 120 mm, hole
                         circle Ø 140 mm, 6 holes
                         Ø 5.5 mm, with centering
                         collar
Reference mark:          coded reference marks,
                         nominal increment = 1000
                         grating periods
Mechanical permissible
speed without mechanical
fault exclusion:         8750 min-1
Mechanical permissible
speed with mechanical
fault exclusion:         4500 min-1