The AKE50-8 KV110 draws less current at its rating (3 A against 4.8 A), is lighter (190 g against 260 g), narrower (61.2 mm against 69 mm) and shallower (22.5 mm against 25 mm), and turns faster at the output (240 RPM against 180 RPM). The AKE60-8 KV80 has more continuous torque (5 N·m against 2.5 N·m), more peak torque (12.5 N·m against 7.5 N·m) and a higher torque constant (0.13 N·m/A against 0.104 N·m/A).
The AKE50-8 KV110 is US$190 and the AKE60-8 KV80 is US$245. That is US$76.00 per rated N·m for the AKE50-8 KV110 and US$49.00 per rated N·m for the AKE60-8 KV80.
| AKE50-8 KV110 | AKE60-8 KV80 | |
|---|---|---|
| Reduction Ratio | 8:1 | 8:1 |
| Rated Torque (N·m) | 2.5 | 5 |
| OD (mm) | 61.2 | 69 |
| Weight (g) | 190 | 260 |
| Peak Torque (N·m) | 7.5 | 12.5 |
| Rated Voltage (V) | 24 | 24 |
| Rated Speed (RPM) | 240 | 180 |
| No-Load Speed (RPM) | 320 | 240 |
| Rated Current (A) | 3 | 4.8 |
| Peak Current (A) | 9 | 12 |
| Maximum Torque Weight Ratio (N·m/kg) | 39.5 | 46 |
| Height (mm) | 22.5 | 25 |
| Max Continuous Power (W) | 65 | — |
| Backlash (arcmin) | 9 | — |
| Backdrivable Torque (N·m) | 0.09 | — |
| Rotor Inertia (g·cm²) | 153.81 | — |
| Motor Constant (N·m/√W) | 0.097 | — |
| Kv (RPM/V) | 110 | 80 |
| Kt (N·m/A) | 0.104 | 0.13 |
| Ke (V/kRPM) | 7 | 12.5 |
| Phase Resistance (mΩ) | 792 | — |
| Phase Inductance (μH) | 560 | — |
| Pole Pairs | 14 | 14 Inertia (g·cm²） 647.39 |
| Number of Slots | 24 | — |
| Basic Dynamic Load Rating Cr (N) | 1100 | — |
| Basic Static Load Rating C0r (N) | 840 | — |
| Noise dB (65cm away the motor) | 65 | — |
| Operation Ambient Temperature | -20℃~50℃ | (℃) -20℃~50℃ |
| Insulation Level | F | — |
| Dielectric Strength | 500V | — |
| Insulation Resistance | 500V 10MΩ | — |
| Driving Way | FOC | FOC |
| Application | Exoskeleton, Robotic Arm | Exoskeleton |
| Rated Power (W) | — | 95 |
| Phase to Phase Resistance (mΩ) | — | 577 |
| Phase to Phase Inductance (μH) | — | 704 |
| Mechanical Time Constant (ms) | — | 1.2 |
| Electrical Time Constant (ms) | — | 1.7 |
| Winding Type | — | Star |
Rows the two disagree on are marked; the figures are CubeMars'. To put any other two parts side by side, build your own comparison.