IntroductionThe SHD-mini series harmonic drive is engineered for applications requiring minimal volume and weight. It features a top-hat style flexspline to achieve reduced axial dimensions and is supplied exclusively as pre-assembled modular units for immediate integration. The main bearing uses compact four-point contact ball bearings to support external loads directly. Shaft bore dimensions can be customized to match specific motor shafts; select the appropriate motor model according to your mechanical design.
Features- Compact size and lightweight construction
- Simplified, space-saving design
- High rotational accuracy and positioning precision
- Coaxial input and output arrangement
- Top-hat style flexspline for minimized axial length
- Pre-assembled modular units for fast integration
- Main bearing: compact four-point contact ball bearings for direct external load support
- Customizable shaft bore to fit motor shaft diameters
Specification (table)Model | Gear Ratio | Rated torque at input 2000 r/min [N.m] | Permissible peak torque during start/stop [N.m] | Maximum allowable average load torque [N.m] | Maximum instantaneous permissible torque [N.m] | Maximum allowable input speed [r/min] | Allowable average input speed [r/min] | Gear backlash (arcsec) | 1/4GD [kgcm2] | Mass (kg)
SHD Series | 03 | 30 | 0.08 | 0.15 | 0.12 | 0.25 | 10000 | 6500 | ≤20 | 7.0x10-4 | 0.016
SHD Series | 03 | 50 | 0.13 | 0.24 | 0.16 | 0.5 | 10000 | 6500 | ≤20 | 7.0x10-4 | 0.016
SHD Series | 05 | 30 | 0.23 | 0.47 | 0.35 | 0.85 | 10000 | 6500 | ≤20 | 2.5x10-4 | 0.040
SHD Series | 05 | 50 | 0.38 | 0.87 | 0.5 | 1.7 | 10000 | 6500 | ≤20 | 2.5x10-4 | 0.040
SHD Series | 05 | 80 | 0.5 | 1.2 | 0.82 | 2.2 | 10000 | 6500 | ≤10 | 2.5x10-4 | 0.040
SHD Series | 08 | 30 | 0.8 | 1.6 | 1.3 | 3.2 | 8500 | 3500 | ≤20 | 3.2x10-3 | 0.061
SHD Series | 08 | 50 | 1.6 | 3.16 | 2.1 | 6.1 | 8500 | 3500 | ≤20 | 3.2x10-3 | 0.061
SHD Series | 08 | 80 | 2.1 | 4 | 2.9 | 7.5 | 8500 | 3500 | ≤10 | 3.2x10-3 | 0.061
SHD Series | 08 | 100 | 2.4 | 4.6 | 3.2 | 8.7 | 8500 | 3500 | ≤10 | 3.2x10-3 | 0.061
SHD Series | 11 | 30 | 2.1 | 4.1 | 3.1 | 8.2 | 8500 | 3500 | ≤20 | 1.4x10-2 | 0.127
SHD Series | 11 | 50 | 3.2 | 7.8 | 5.1 | 15 | 8500 | 3500 | ≤20 | 1.4x10-2 | 0.127
SHD Series | 11 | 80 | 4.2 | 9.5 | 7.2 | 20 | 8500 | 3500 | ≤10 | 1.4x10-2 | 0.127
SHD Series | 11 | 100 | 4.8 | 10.5 | 8.7 | 23 | 8500 | 3500 | ≤10 | 1.4x10-2 | 0.127
SHD Series | 14 | 30 | 3.8 | 8.7 | 6.2 | 15 | 8500 | 3500 | ≤20 | 3.4x10-1 | 0.312
SHD Series | 14 | 50 | 4.8 | 16 | 6.8 | 32 | 8500 | 3500 | ≤20 | 3.4x10-1 | 0.312
SHD Series | 14 | 80 | 6.4 | 22 | 9.5 | 45 | 8500 | 3500 | ≤10 | 3.4x10-1 | 0.312
SHD Series | 14 | 100 | 7.4 | 26 | 10.8 | 50 | 8500 | 3500 | ≤10 | 3.4x10-1 | 0.312
Characteristics / Technical specifications- Series: SHD-mini
- Design: top-hat style flexspline for reduced axial dimensions; pre-assembled modular units
- Bearings: compact four-point contact ball bearings for direct external load support
- Input/Output: coaxial input and output configuration
- Shaft: customizable shaft bore to match motor shafts
- Available gear ratios: 30, 50, 80, 100 (varies by model)
- Model sizes: 03, 05, 08, 11, 14
- Rated torque range: ~0.08 N·m to 7.4 N·m (see table)
- Permissible peak torques and instantaneous limits: see table (up to 26 N·m nominal peak, instantaneous up to 50 N·m)
- Maximum input speed: up to 10000 r/min (model-dependent)
- Typical allowable average input speed: 3500 or 6500 r/min depending on model
- Gear backlash: typically ≤20 arcsec, some sizes ≤10 arcsec
- Inertia (1/4GD) and mass: values listed in table (approx. 7.0x10-4 to 3.4x10-1 kg·cm2; mass 0.016–0.312 kg)