The R60 KV115 draws less current at its rating (9 A against 35 A), and is lighter (248 g against 731 g) and narrower (69 mm against 106.8 mm). The R100 KV90 has more continuous torque (3.7 N·m against 0.75 N·m), more peak torque (11 N·m against 2.3 N·m) and a higher torque constant (0.106 N·m/A against 0.083 N·m/A).
The R60 KV115 is US$200 and the R100 KV90 is US$478. That is US$266.67 per rated N·m for the R60 KV115 and US$129.19 per rated N·m for the R100 KV90.
| R60 KV115 | R100 KV90 | |
|---|---|---|
| Reduction Ratio | 1:1 | 1:1 |
| Rated Torque (N·m) | 0.75 | 3.7 |
| Peak Torque (N·m) | 2.3 | 11 |
| OD (mm) | 69 | 106.8 |
| Weight (g) | 248 | 731 |
| Rated Voltage (V) | 48 | 48 |
| Continuous Torque Max Speed (RPM) | 4150 | 3800 |
| Rated Current (A) | 9 | 35 |
| Peak Current (A) | 28 | 104 |
| Kv (RPM/V) | 115 | 90 |
| Kt (N·m/A) | 0.083 | 0.106 |
| Hall Sensor | Yes | Yes |
| Rotor Type | Outer rotor | Outer rotor |
| Driving Way | FOC | FOC |
| Application | AGV, AMR | Legged Robot |
| Hall Electrical Angle | — | 120±20° |
Rows the two disagree on are marked; the figures are CubeMars'. To put any other two parts side by side, build your own comparison.