Incremental Encoder FG 2
FG2_MANUAL-en_R8(2016-08-11)ID70199.doc
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6.6
Mounting tolerances
NOTES!
Angle misalignment and parallel displacement between the (motor) shaft and the
encoder shaft are mounting errors and should be kept as small as possible.
Mounting errors
- Cause radial forces to act on the encoder shaft.
- Reduce the service life of the bearings and the coupling.
- Degrade the quality of the signals (harmonic content).
Mounting tolerances for our zero-backlash, torsion-resistant couplings HK 5 and HKD 5:
Coupling
Axial offset
a
Angular error
α
Parallel offset e
HK 5
± 1 mm
0.5°
-
HKD 5
± 1.5 mm
0.5°
0.5 mm
