FS Series
The FS Series harmonic reducer features a cup-type flexspline with external teeth, engineered for precision, power, and reliability. Its compact design delivers high torque, zero backlash, and smooth motion with outstanding stability and control. Perfect for robots, automation lines, semiconductor tools, and medical devices where precision drives performance. Available in standard, high-torque, ultra-flat, and lightweight models, the FS Series adapts to any design challenge. Each version brings together Laifual’s cutting-edge design, durable build, and efficient performance. It helps engineers create motion systems that move faster, run smoother, and deliver precise, reliable results every time.
About FS Tooth Profile
The FS Series features Laifual’s upgraded multi-segment continuous arc tooth profile. It’s a major step forward from the traditional double-arc design and delivers smoother, more stable gear meshing.
Each segment is precisely curved to reduce friction and heat, keeping operation quiet and efficient. The improved design also protects the grease from early failure and maintains consistent performance under load.
With its five-tooth engagement, the FS Series achieves 15% higher load capacity and 8–10°C lower temperature rise. The contact area affected by fatigue is reduced by more than 30%, extending the continuous service life to over 15,000 hours. It’s built to perform longer, run cooler, and deliver reliability you can trust.
Refined Engineering for Precision Motion
The FS Series shows Laifual’s commitment to higher efficiency and mechanical balance. It focuses on motion stability, heat control, and structural accuracy. The design goes beyond compact size and torque output to achieve smoother motion and longer service life.
Optimised Flexspline Design
Each FS harmonic drive uses an optimised flexspline deformation curve to maintain accurate gear engagement throughout every cycle. The refined motion curve lowers internal stress and friction. It keeps torque output stable and operation quiet under demanding conditions.
Flexible Ratio Adjustment
By adjusting the wave generator’s radial displacement, users can set precise reduction ratios. This flexibility allows each reducer to match specific application needs while keeping high efficiency and strong rigidity.
Consistent Precision and Durability
The result is a harmonic drive that runs cooler, lasts longer, and performs with outstanding precision. It represents a new level of reliability, control, and performance for modern automation and robotics.
Frequently Asked Questions