Chiusura mercato forex venerdi
A proper fit between the bore and shaft plus a good flex mount help retain accuracy and extend encoder bearing life.
Sensitivity to motor shaft run-out and axial movement can be issues, and on optical encoders, significant play can push the disc into the optics. Other modular encoders are fully contained, self-protecting shielded kits that mount to motor shafts.
Otherwise, unblocked stray or parasitic shaft currents through an earthed encoder housing to the ground cause electrical discharge machining (and failure) of bearing rollers and races.
Encoder resolutions exceeding 50,000 counts per turn reflect this bearing noise in the form of position error.