Harmonic Drive CSF-2UH-ULW Ultra-Lightweight Gear Units
Harmonic Drive CSF-2UH-ULW Ultra-Lightweight Gear Units
CSF-2UH-ULW is an ultra-lightweight strain-wave gear-unit family with a hybrid-material structure and a four-point output bearing. It targets compact axes where reducer mass matters, including end-of-arm mechanisms. The ULW architecture must be distinguished from standard CSF-2UH and CSF-2UH-LW cross-roller-supported units; matching gearing torque does not make their output support identical.
Review Summary
Consider ULW for a mass-sensitive rotary axis when its four-point bearing, output stiffness and mounting arrangement satisfy the actual load. Compare the complete mechanism rather than bare reducer mass alone. The motor, drive, brake, environmental enclosure and machine safety remain separate engineering responsibilities.
Sizes 8 / 11 / 14 / 17 / 20 in manufacturer brochure Output support Four-point bearing; do not relabel as a cross-roller bearing Construction Ultra-compact hybrid-material gear-unit design CSF-8-30-2UH-ULW 0.9 Nm rated; 1.8 Nm repeated peak; 3.3 Nm momentary peak; 0.09 kg CSF-17-50-2UH-ULW 16 Nm rated; 34 Nm repeated peak; 70 Nm momentary peak; 0.32 kg CSF-20-100-2UH-ULW 40 Nm rated; 82 Nm repeated peak; 147 Nm momentary peak; 0.45 kg Size 17, ratio 50 accuracy 1.5 arcmin standard accuracy in current product table Size 17 comparison masses ULW 0.32 kg; 2UH-LW 0.46 kg; standard 2UH 0.68 kg Size 17 output moment stiffness ULW 4.6; LW 6.4; standard 7.75, all ×10^4 Nm/rad Price Request a quote for exact size, ratio and installation requirements Applications and Industries
Mass-sensitive rotary joints, end-of-arm mechanisms and compact automation axes
Industrial automation
Request a quote for the exact configuration,quantity and delivery schedule.
| Sizes | 8 / 11 / 14 / 17 / 20 in manufacturer brochure |
| Output support | Four-point bearing; do not relabel as a cross-roller bearing |
| Construction | Ultra-compact hybrid-material gear-unit design |
| CSF-8-30-2UH-ULW | 0.9 Nm rated; 1.8 Nm repeated peak; 3.3 Nm momentary peak; 0.09 kg |
| CSF-17-50-2UH-ULW | 16 Nm rated; 34 Nm repeated peak; 70 Nm momentary peak; 0.32 kg |
| CSF-20-100-2UH-ULW | 40 Nm rated; 82 Nm repeated peak; 147 Nm momentary peak; 0.45 kg |
| Size 17, ratio 50 accuracy | 1.5 arcmin standard accuracy in current product table |
| Size 17 comparison masses | ULW 0.32 kg; 2UH-LW 0.46 kg; standard 2UH 0.68 kg |
| Size 17 output moment stiffness | ULW 4.6; LW 6.4; standard 7.75, all ×10^4 Nm/rad |
| Price | Request a quote for exact size, ratio and installation requirements |
