KMF high-torque frameless direct drive motors have high torque output and torque density. They also have ultra-low cogging torque, extremely low torque fluctuation at low speed, low noise, and precise rotation movement for efficient and stable solutions required by the mechanical system.
The KMF high-torque frameless direct drive motor adopts high-power-density windings for applications requiring small and compact size, low weight, and low inertia. The high-performance NdFeB rotor and carbon fiber material wrap design provide efficient and stable solutions for the system.
KMF Frameless Direct Drive Torque Motor – Technical Data
| Designed voltage | DC bus voltage 48VDC | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Model KMF- | 060A L | 060B L | 076A L | 076B L | 095A L | 095B L | 129A L | 145A L | 060A M | 060B M | 076A M | 076B M | 095A M | 095B M | 129A M | 145A M | |
| Rated power | W | 130 | 160 | 290 | 350 | 500 | 560 | 600 | 750 | 130 | 160 | 290 | 350 | 500 | 550 | 600 | 750 |
| Speed at rated power | RPM | 4200 | 2800 | 3900 | 2200 | 2600 | 1800 | 2400 | 1700 | 4500 | 3100 | 4200 | 2500 | 2900 | 1800 | 2800 | 2100 |
| Continuous stall torque | Nm | 0.459 | 0.774 | 1.032 | 1.82 | 2.33 | 3.98 | 3.343 | 4.479 | 0.459 | 0.774 | 1.032 | 1.82 | 2.33 | 3.903 | 3.343 | 4.479 |
| Continuous current | Arms | 5.06 | 6.2 | 8.96 | 9.87 | 14.8 | 16.31 | 18.96 | 23.71 | 1.69 | 2.07 | 2.99 | 3.29 | 4.93 | 5.153 | 6.32 | 7.9 |
| Peak stall torque | Nm | 1.56 | 2.63 | 3.1 | 5.46 | 6.06 | 9.57 | 8.36 | 11.65 | 1.61 | 2.71 | 3.3 | 5.82 | 6.99 | 11.71 | 10.03 | 13.44 |
| Peak current | Arms | 16.7 | 19.85 | 30.27 | 33.18 | 44.4 | 47.61 | 48.3 | 54.62 | 5.92 | 7.25 | 9.57 | 10.53 | 14.79 | 15.46 | 18.96 | 23.7 |
| Torque constant | Nm/Arms | 0.091 | 0.152 | 0.109 | 0.184 | 0.141 | 0.218 | 0.176 | 0.232 | 0.392 | 0.354 | 0.504 | 0.491 | 0.794 | 0.734 | 0.898 | 0.892 |
| Back EMF | Vrms/kRPM | 6.32 | 10.03 | 7.98 | 12.06 | 10.57 | 14.69 | 12.05 | 17.48 | 23.85 | 37.81 | 30.66 | 45.46 | 40.84 | 53.52 | 44.29 | 50.87 |
| Phase resistance | Ohms | 0.275 | 0.204 | 0.262 | 0.196 | 0.239 | 0.179 | 0.188 | 0.139 | 4.311 | 3.233 | 2.135 | 1.601 | 1.779 | 1.267 | 1.438 | 1.024 |
| Phase inductance | mH | 0.352 | 0.275 | 0.313 | 0.244 | 0.282 | 0.219 | 0.265 | 0.207 | 5.256 | 3.942 | 3.869 | 2.902 | 3.375 | 2.495 | 3.165 | 3.026 |
| Cogging torque | Nm | 0.0012 | 0.0021 | 0.0034 | 0.0055 | 0.0088 | 0.0092 | 0.0094 | 0.0099 | 0.001 | 0.0021 | 0.0027 | 0.0055 | 0.0097 | 0.0098 | 0.0094 | 0.0097 |
| Inertia moment | x10^-4 kg m² | 0.15 | 0.26 | 0.32 | 0.58 | 1.14 | 1.93 | 1.78 | 2.32 | 0.15 | 0.26 | 0.32 | 0.58 | 1.14 | 1.96 | 1.78 | 2.32 |
| Mass | kg | 0.155 | 0.289 | 0.302 | 0.553 | 0.578 | 1.035 | 1.123 | 1.612 | 0.155 | 0.289 | 0.302 | 0.553 | 0.578 | 1.024 | 1.123 | 1.612 |
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