Harmonic Drive HMA Hollow-Shaft Servo Motors
Harmonic Drive HMA is a family of hollow-shaft AC servo motors with absolute feedback and an optional brake. Five frame sizes cover rated outputs from 163 to 1320 W, with a central passage for cables, shafts or optical paths through the motor axis.
Key Specifications
Motor family | HMA; five frame sizes with multiple ordering configurations |
HMAC08 rated operating point | 0.52 Nm; 3000 rpm; 163 W |
HMAB09 rated operating point | 0.80 Nm; 3000 rpm; 251 W; distinct winding choices |
HMAB12 rated operating point | 1.55 Nm; 2500 rpm; 406 W |
HMAB15 rated operating point | 3.6 Nm; 2000 rpm; 754 W |
HMAA21 rated operating point | 12.6 Nm; 1000 rpm; 1320 W |
Feedback | 17-bit single-turn absolute encoder; 16-bit battery-buffered multi-turn counter |
Brake option | With or without brake; configuration dependent |
Rating conditions | Typical values; manufacturer specifies HA-800 test conditions and frame-specific aluminum heatsinks |
Applications and Industries
Rotary mechanisms requiring a motor-axis passage for cables, shafts or an optical path, with the load and any reduction selected around the exact motor operating point.
Industrial automation
Review Summary
HMA is a candidate when a through-axis passage and a flat motor arrangement solve a real packaging problem. Match the winding, encoder and brake configuration to the chosen amplifier, and design the thermal mounting around the manufacturer's rating conditions. Neither the family power maximum nor the encoder count establishes complete machine performance.
Price and Configuration
Request a quote for the selected configuration,quantity and delivery schedule. Confirm the exact model,options,integration scope and support terms.
