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VCSG Harmonic Gear Reducer
A high-performance zero-backlash harmonic drive reducer with hollow type (2UH) output flange and built-in cross-roller bearing — offering higher torque, stiffness and accuracy than standard VCS, with ratios 30–160 for demanding robotics and precision automation.
Zero Backlash
Harmonic drive principle ensures precise positioning with no lost motion.
Hollow with Flange (2UH)
Large central through-bore for cables, hoses or shafts with a ready-to-mount output flange.
Higher Torque & Rigidity
VCSG series delivers higher torque density and torsional stiffness than standard VCS.
Built-in Cross-Roller Bearing
Supports radial, axial and moment loads directly — no external bearings needed.
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- VCSG-20-XXX-2UH0002 high-performance zero-backlash harmonic drive reducer from the VCSG series
- Hollow type (2UH) configuration with integrated output flange for direct mounting
- Large central through-bore allows cables, hoses or shafts to pass through the reducer
- Built-in cross-roller bearing supports radial, axial and moment loads without external bearings
- Zero backlash via harmonic drive principle for precise positioning with no lost motion
- Higher torque capacity, increased stiffness and improved accuracy compared to standard VCS series
- Compact and flat shape with short axial length saves installation space
- High positioning accuracy — angular transmission error ≤2.9 × 10⁻⁴ rad (≈1 arcmin) for size 20, ratio ≥50
- Wide reduction ratio range available: 30, 50, 80, 100, 120, 160 (optimal performance at ratio ≥50)
- Pre-lubricated with grease for maintenance-free long service life
- Size 20 harmonic drive — ideal for demanding robotics and precision automation applications
- Designed for high-end positioning applications in robotics, machine tools and rotary tables
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