Strain wave gear reducer FHG-II-17

coaxialkeyed bore5 - 10 Nm

Introduction
The FHG-II series strain wave drive integrates a cross‑roller bearing coupling on the wave generator to enable automatic fine adjustment of coaxiality. The cam‑shaft bore can be tailored to the customer's motor; the input shaft fits into the wave‑generator inner bore and is connected with a flat key. A built‑in cross‑roller main bearing provides structural rigidity. Typical output configurations are: rigid wave wheel fixed with flexspline output, or flexspline fixed with rigid wheel output.

Features

• Wave generator with cross‑roller bearing coupling for simplified installation and alignment.
• Excellent rotational and positioning accuracy (low backlash).
• High torque capacity across model range.
• High structural rigidity via integrated main bearing.
• Coaxial input and output for compact drive integration.

Application / Mounting notes
The cam‑shaft bore can be machined to match the customer's motor interface. Input shaft is inserted into the inner bore of the wave generator and secured by a flat key. Common connection modes: rigid wave wheel fixed with flexspline output, or flexspline fixed with rigid wheel output. Coaxial arrangement simplifies drivetrain integration.

Technical characteristics / specifications

• Series: FHG (variants include FHG‑I to FHG‑V; FHG‑II described here).
• Wave generator coupling: cross‑roller bearing coupling enabling automatic coaxial fine‑tuning.
• Main bearing: integrated cross‑roller high‑rigidity main bearing.
• Input/output: coaxial arrangement; input shaft keyed into wave generator bore; cam‑shaft bore adjustable.
• Performance highlights: low backlash (≤20 Arc‑sec typical), wide range of reduction ratios and torque capacities across FHG‑14 to FHG‑40.
• Data availability: detailed tables provide starting torque, rated torque, peak/persistent torque limits, radial/axial load limits (Ft/Fa), permissible input speeds and design life per model.