Strain wave gear reducer FHD-32

harmoniccoaxial5 - 10 Nm

Introduction
The FHD series harmonic reducer employs an ultra-short top-hat flexspline combined type designed for applications that require extreme compactness and minimized axial length (approximately 50% shorter than the FHG series). The output side is equipped with high-rigidity cross roller bearings, making the unit suitable for space-constrained machine designs.

Features

• Ultra-thin hollow profile
• Combined flat-profile design for reduced axial height
• High torque capacity with zero backlash (typical ≤20 arc sec)
• High rigidity and coaxial input/output
• Available models: FHD-14, FHD-17, FHD-20, FHD-25, FHD-32

Starting torque (cNm) by reduction ratio
Reduction ratios: 14 | 17 | 20 | 25 | 32
Type 50: 6.2 | 19 | 25 | 39 | 60
Type 80: 5.0 | 16 | 23 | 36 | 55
Type 100: 4.8 | 17 | 22 | 34 | 50

Static / instant permissible values (per model)
FHD-14: Mb nom 41 Nm (Mb max 80 Nm); Ft nom 270 N (Ft max 490 N); Fa nom 270 N (Fa max 490 N)
FHD-17: Mb nom 59 Nm (Mb max 140 Nm); Ft nom 330 N (Ft max 570 N); Fa nom 330 N (Fa max 570 N)
FHD-20: Mb nom 117 Nm (Mb max 230 Nm); Ft nom 550 N (Ft max 975 N); Fa nom 550 N (Fa max 975 N)
FHD-25: Mb nom 213 Nm (Mb max 420 Nm); Ft nom 790 N (Ft max 1400 N); Fa nom 790 N (Fa max 1400 N)
FHD-32: Mb nom 400 Nm (Mb max 800 Nm); Ft nom 1240 N (Ft max 2100 N); Fa nom 1240 N (Fa max 2100 N)

Performance (selected values by model and ratio)
Model FHD-14 — Ratio 50: Rated torque 3.7 Nm; Peak start/stop 12 Nm; Avg load 4.8 Nm; Momentary 23 Nm; Max input speed (grease) 8500 r/min; Avg input 3500 r/min; Backlash ≤20 arc sec; Weight FHD-I 0.34 kg / FHD-II 0.64 kg; Design life ~9000 h
Model FHD-14 — Ratio 80/100: Rated 5.1/5.4 Nm; Peak 15/19 Nm; Avg load 6.2/7.7 Nm; Momentary 29/35 Nm; Design life 10000 h
Model FHD-17 — Ratio 50/80/100: Rated 11 / 14 / 16 Nm; Peak 23 / 29 / 37 Nm; Avg load 18 / 21 / 27 Nm; Momentary 48 / 54 / 71 Nm; Max input 7300 r/min; Weight FHD-I 0.42 kg / FHD-II 0.87 kg
Model FHD-20 — Ratio 50/80/100: Rated 17 / 23 / 28 Nm; Peak 39 / 49 / 57 Nm; Avg load 24 / 28 / 34 Nm; Momentary 69 / 78 / 95 Nm; Max input 6500 r/min; Weight FHD-I 0.54 kg / FHD-II 1.14 kg
Model FHD-25 — Ratio 50/80/100: Rated 27 / 42 / 47 Nm; Peak 69 / 91 / 110 Nm; Avg load 38 / 62 / 75 Nm; Momentary 127 / 157 / 184 Nm; Max input 5600 r/min; Weight FHD-I 0.95 kg / FHD-II 1.75 kg
Model FHD-32 — Ratio 50/80/100: Rated 53 / 79 / 96 Nm; Peak 151 / 202 / 233 Nm; Avg load 75 / 126 / 151 Nm; Momentary 268 / 350 / 420 Nm; Max input 4800 r/min; Weight FHD-I 1.90 kg / FHD-II 3.56 kg

Technical specifications

• Series: FHD
• Design: Ultra-thin top-hat flexspline (combined type for flat-profile)
• Axial length: approx. 50% shorter than FHG series
• Output bearing: High-rigidity cross roller bearings
• Backlash: ≤20 arc sec (typical)
• Permissible input speeds (grease): model-dependent (see values above)
• Design life: typically 9000–10000 h depending on model and ratio

Notes
Data above are representative technical values for selection. For final sizing, refer to specific model tables and contact the manufacturer/distributor with application conditions.