Flex Harmonic

Since 1968, Flex Harmonic has manufactured harmonic gearing and precision motion components engineered for applications that demand high reduction ratios, compact packaging, accurate positioning, and dependable long-term operation.

The product portfolio includes zero-backlash servo gearheads, harmonic gear component sets, precision differential gearboxes, robotic actuators, and industrial motion-control systems. Flex Harmonic serves OEM engineers, machine builders, system integrators, and automation manufacturers across robotics, automation, machine tools, and industrial equipment.

Core Product Families

• Lifetime Series™ Servo Gearheads: Zero-backlash harmonic servo gearheads for precision positioning, indexing, automation, and machine-control applications.
• HDC Series: Long-cup harmonic gear component sets for high-ratio, zero-backlash precision motion systems.
• CSF Series: Compact, high-performance short-cup component sets for robotics, automation, and precision machinery.
• HDF Series: Ultra-thin pancake harmonic gear sets for applications where minimum axial length is critical.
• HDR / HDA Series: Heavy-duty pancake harmonic gear sets designed for higher torque and demanding industrial service.
• HDB Series: Precision 1:1 harmonic differential assemblies for phasing, registration, and synchronized machinery.

Flex Harmonic provides technical drawings, dimensional data, engineering documentation, and application support to simplify product selection and machine integration.

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