The RO60 KV115 Lite is lighter (195 g against 270.4 g), narrower (70.5 mm against 76 mm) and shallower (15 mm against 24 mm), and turns faster at the output (4200 RPM against 1270/1990/2710 RPM). The RI70 KV95 without hall sensor has more continuous torque (0.94 N·m against 0.8 N·m), more peak torque (2.68 N·m against 2.4 N·m) and a higher torque constant (0.130 N·m/A against 0.094 N·m/A), and draws less current at its rating (7.1 A against 8.5 A).
The RO60 KV115 Lite is US$87 and the RI70 KV95 without hall sensor is US$139. That is US$108.75 per rated N·m for the RO60 KV115 Lite and US$147.87 per rated N·m for the RI70 KV95 without hall sensor.
| RO60 KV115 Lite | RI70 KV95 without hall sensor | |
|---|---|---|
| Rated Torque (N·m) | 0.8 | 0.94 |
| OD (mm) | 70.5 | 76 |
| Weight (g) | 195 | 270.4 |
| Peak Torque (N·m) | 2.4 | 2.68 |
| Rated Voltage (V) | 48 | 24/36/48 |
| Rated Speed (RPM) | 4200 | 1270/1990/2710 |
| No-Load Speed (RPM) | 5230 | 1956/2934/3912 |
| Rated Current (A) | 8.5 | 7.1 |
| Peak Current (A) | 40 | 21 |
| Maximum Torque Weight Ratio (N·m/kg) | 12.3 | 9.91 |
| Height (mm) | 15 | 24 |
| Kv (RPM/V) | 115 | 95 |
| Kt (N·m/A) | 0.094 | 0.130 |
| Ke (V/kRPM) | 8.28 | 11.69 |
| Phase to Phase Resistance (mΩ) | 300 | 418 |
| Phase to Phase Inductance (μH) | 395 | 622.7 |
| Inertia (g·cm²) | 800 | 92.15 |
| Mechanical Time Constant (ms) | 2.86 | 0.23 |
| Electrical Time Constant (ms) | 1.32 | 1.49 |
| Pole Pairs | 14 | 14 |
| Winding Type | Star | Delta Phase 3 |
| Operation Ambient Temperature | -20℃~50℃ | -20℃~50℃ |
| Hall Sensor | No | — |
| Temperature Sensor | No | — |
| Driving Way | FOC | FOC |
| Application | Cobot Arm, Exoskeleton | Cobot Arm, Exoskeleton |
| Motor Constant Km (N·m/√W) | — | 0.2011 |
Rows the two disagree on are marked; the figures are CubeMars'. To put any other two parts side by side, build your own comparison.