CSF-GH Zero Backlash Harmonic Drive Gearhead Standard Series
Zero backlash CSF-GH Harmonic Drive gearhead with proprietary S tooth profile 5 frame sizes peak torque 18 to 2630 Nm ratios 50 to 160 accuracy less than 1 arc-min Quick Connect motor mounting
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Product Overview
The CSF-GH delivers zero backlash with proprietary S tooth profile for high torque and high accuracy. Standard series compared to CSG-GH which offers 30 percent higher torque. Accuracy less than 1 arc-min repeatability plus minus 4 to 10 arc-sec. Cross roller output bearing. 5 frame sizes sizes 14 20 32 45 65 ratios 50 to 160 peak torque 18 to 2630 Nm. Quick Connect motor mounting.
The CSF-GH is a fully integrated rotary actuator combining servo motor, harmonic gear reducer, encoders, servo electronics, and compact mechanical packaging in a single assembly.
Servo Mount Gearhead Architecture
Harmonic Planetary and Harmonic Drive gearheads mount directly to standard servo motors using a flange or shaft input interface. The Quick Connect coupling system allows motor exchange without realignment. The cross roller output bearing provides direct load support.
Quick Connect Motor Mount
Rapid motor exchange without realignment tools, compatible with most servo motor flange standards.
Low Backlash
Less than 3 arc-min standard. Less than 1 arc-min available as an option on most series.
Cross Roller Output
Integrated cross roller bearing supports radial, axial, and moment loads without additional bearings.
Continuous Compensation
Continuous backlash compensation maintains low backlash throughout the gear life.
High Torsional Stiffness
High stiffness minimises compliance in the drive train for precise dynamic positioning.
Grease Lubricated for Life
No maintenance lubrication required over the operating life of the gearhead.
Typical Applications
The CSF-GH suits servo motor driven robot joints, precision index tables, semiconductor wafer stages, laser beam steering, AGV and AMR propulsion drives, and any precision motion application requiring a servo mount gearhead with low backlash and high moment stiffness.
Key Specifications
Critical performance parameters at a glance
Technical Specifications
Overview
Size 14 Performance
Size 65 Performance
Product Attributes
Industrial Applications
These servo-mount gearheads are used where motor compatibility, compact packaging, and precision motion transmission are needed in a complete gearbox format.
Servo Axis Reduction
Pairs with servo motors in factory automation, robotics, and machinery where reduced speed and increased output torque are required.
Packaging & Converting
Supports motion axes in packaging, labelling, and converting systems where compact drivetrains and stable positioning are essential.
Robot Peripheral Axes
Used on auxiliary axes, end-of-arm devices, and support mechanisms that need precise servo-driven output motion.
Index Tables & Feed Systems
Works well in indexing mechanisms, feeders, and transfer systems where repeatable angular motion is important.
OEM Motion Modules
Simplifies motion subsystem design for OEMs needing a packaged reducer with predictable motor-mount integration.
Precision Equipment
Supports analytical, optical, and specialty machinery requiring compact servo-ready reduction stages.
Factory Modification & Custom Sourcing
This product supports custom configurations and equivalent sourcing
Available Modifications
- •Torque and speed ratio customization
- •Mounting interface modifications
- •Connector and wiring specifications
- •Housing and enclosure options
Sourcing Options
- •Standard product sourcing
- •Equivalent product identification
- •Replacement part sourcing
- •Volume pricing (MOQ may apply)
Request Pricing & Availability
Submit an RFQ for standard products, custom configurations, or equivalent alternatives
Frequently Asked Questions
Technical answers sourced from engineering specifications and integration guides.
The CSF-GH is the standard Harmonic Drive gearhead using the S tooth profile for zero backlash and high accuracy. The CSG-GH delivers 30 percent higher torque in the same size.
Have a technical question not answered above?
Our application engineers review every RFQ and respond with specification-matched recommendations.