Harmonic Drive KDU Direct-Drive Motors
Harmonic Drive KDU Direct-Drive Motors
Harmonic Drive KDU is a hollow-center direct-drive motor family with precision feedback and a matched HA-770-2 drive arrangement. The manufacturer specifies 10 arcsecond corrected positioning accuracy and ±0.5 arcsecond repeatability under stated environmental and mounting conditions. These values describe the qualified system, not an unconditional result for every machine installation.
Review Summary
Consider Harmonic Drive KDU Direct-Drive Motors for precision rotary positioning and optical or metrology mechanisms requiring a qualified direct-drive system. Establish the required operating point and installation interfaces before choosing the configuration, and use a representative loaded cycle as the acceptance basis.
Family KDU Drive concept Direct drive, hollow center Matched drive listed HA-770-2 Corrected positioning accuracy 10 arcsec under manufacturer conditions Repeatability ±0.5 arcsec under manufacturer conditions Specified test conditions 23 ±0.3°C, 50% RH, output shaft facing upward Configuration requirement Exact motor, drive and correction data Applications and Industries
Precision rotary positioning and optical or metrology mechanisms requiring a qualified direct-drive system.
Manufacturing and automation
Request a quote for the exact configuration,quantity and delivery schedule.
| Family | KDU |
| Drive concept | Direct drive, hollow center |
| Matched drive listed | HA-770-2 |
| Corrected positioning accuracy | 10 arcsec under manufacturer conditions |
| Repeatability | ±0.5 arcsec under manufacturer conditions |
| Specified test conditions | 23 ±0.3°C, 50% RH, output shaft facing upward |
| Configuration requirement | Exact motor, drive and correction data |






















