The RI80 V2.0 KV75 without hall sensor has a higher torque constant (0.155 N·m/A against 0.129 N·m/A), draws less current at its rating (9.4 A against 13.6 A), and is lighter (411 g against 500 g) and narrower (85 mm against 104 mm). The RI100 KV105 without hall sensor has more continuous torque (1.76 N·m against 1.45 N·m) and more peak torque (4.95 N·m against 4.1 N·m), is shallower (26 mm against 27 mm), and turns faster at the output (1370/2100/2825 RPM against 1135/1785/2430 RPM).
The RI80 V2.0 KV75 without hall sensor is US$149 and the RI100 KV105 without hall sensor is US$167. That is US$102.76 per rated N·m for the RI80 V2.0 KV75 without hall sensor and US$94.89 per rated N·m for the RI100 KV105 without hall sensor.
| RI80 V2.0 KV75 without hall sensor | RI100 KV105 without hall sensor | |
|---|---|---|
| Rated Torque (N·m) | 1.45 | 1.76 |
| OD (mm) | 85 | 104 |
| Weight (g) | 411 | 500 |
| Peak Torque (N·m) | 4.1 | 4.95 |
| Rated Voltage (V) | 24/36/48 | 24/36/48 |
| Rated Speed (RPM) | 1135/1785/2430 | 1370/2100/2825 |
| No-Load Speed (RPM) | 1480/2220/2960 | 2184/3276/4368 |
| Rated Current (A) | 9.4 | 13.6 |
| Motor Constant Km (N·m/√W) | 0.2698 | 0.3634 |
| Peak Current (A) | 27.6 | 38.6 |
| Maximum Torque Weight Ratio (N·m/kg) | 9.3 | 9.9 |
| Height (mm) | 27 | 26 |
| Kv (RPM/V) | 75 | 105 |
| Kt (N·m/A) | 0.155 | 0.129 |
| Ke (V/kRPM) | 15.5 | 10.47 |
| Phase to Phase Resistance (mΩ) | 330 | 126 |
| Phase to Phase Inductance (μH) | 510 | 366.7 |
| Inertia (g·cm²) | 212.49 | 215.5 |
| Mechanical Time Constant (ms) | 0.29 | 0.16 |
| Electrical Time Constant (ms) | 1.55 | 2.91 |
| Pole Pairs | 8 | 14 |
| Winding Type | Delta Phase 3 | Delta Phase 3 |
| Operation Ambient Temperature | -20℃~50℃ | -20℃~50℃ |
| Driving Way | FOC | FOC |
| Application | Cobot Arm, Exoskeleton | Cobot Arm, Exoskeleton |
Rows the two disagree on are marked; the figures are CubeMars'. To put any other two parts side by side, build your own comparison.