1.Precision: 30arc-sec
2.Torque capacity: 2.0 – 40.1kgf*m (20Nm – 400Nm)
3.The mechanical output feature is between harmonic drive and cyclo drive
4.The sizes are some of the most compact of all gearboxes
| Descriptions \ Models | SPB40 | SPB60 | SPB90 |
| Continuous Torque (kgf*m/Nm) | 0.3/2.94 | 1.8/17.64 | 1.8/17.64 |
| Max. Torque (kgf*m/Nm) | 1.0/9.8 | 3.1/30.38 | 5.5/53.9 |
| Breaking Point (kgf*m/Nm) | 1.6/15.68 | 3.6/35 | 8.2/80.36 |
| Permissible Input Rotation (r/min) | 4500 | 3000 | 3000 |
| Backlash(arc-min) | 0.5 | 0.5 | 0.5 |
| Inertia (kg*c㎡) | 0.015 | 0.24 | 0.46 |
| Rigidity (Nm/arc-min) | 3 | 10 | 15 |
| Weight (kg) | 0.27 | 1.1 | 3.3 |