High-Precision Strain Wave Gears
Zero-backlash strain wave gears with linear torsional rigidity. Compatible with standard industrial footprints.
Available Configurations
PCS Series
Cup type component set
Zero backlash · High torque capacity · Compact form factor
PSH Series
Housed unit with cross roller bearing output
Hollow shaft · Oldham coupling options · Coaxial I/O
Sizes
14 · 17 · 20 · 25 · 32
Ratios
50 · 80 · 100:1
Custom 30–160:1
Product Lines
Strain wave gear solutions for precision motion control
Why Engineers Choose Quad A
Drop-in Compatible
Standard industrial footprint dimensions. No redesign required for integration into existing systems.
Proven Performance
Less than 10 arc-sec backlash maintained through the full 10,000-hour rated lifespan.
Custom Engineering
Custom ratios from 30:1 to 160:1, modified shafts, and special configurations engineered to your specifications.
Verified Performance Data
Torsional stiffness linearization with near-zero backlash degradation over the full product lifecycle — verified by independent testing at Parkson CNC facility.
Backlash Precision Over Lifecycle
Near-zero degradation — backlash stays well within spec limit through 12,000+ effective hours
PCS-25-100-UC
Effective Hours (hr)
Torsional Stiffness Linearity
Linearized stiffness characteristics — consistent K values across load directions
PCS-25-100-UC
Load Torque (Nm)
Test Report Summary
Positive Torque
56,199 Nm/rad
K1: 55,185 · K2: 52,991 · K3: 59,746
Negative Torque
55,061 Nm/rad
K1: 53,134 · K2: 51,258 · K3: 59,699
Applications
Powering precision across demanding industries
Robotics
Precision Joints & End-Effectors for Industrial and Collaborative Robots
Precision Manufacturing
CNC & Optical Inspection Platforms
Medical
Imaging Systems & Minimally Invasive Surgical Devices
Aerospace
Satellite & UAV Attitude Control Systems
Ready to get started?
Request a quote or contact our engineering team for selection assistance.