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Engineering resources

Datasheets, CAD Files, and Selection Notes for Harmonic Drive Systems

Use this resource center to prepare a ratio shortlist, check output bearing loads, compare cycloidal drive vs harmonic drive tradeoffs, and request records for qualified programs.

CAD Library

STEP and IGES files for component sets, cup-style gear units, hollow-shaft units, and integrated actuators. Use CAD only after checking output moment and fastener pattern.

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Datasheets

Ratio, rated torque, momentary peak torque, lost motion, torsional stiffness, input speed, and bearing load tables for preliminary design review.

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Installation Manuals

Mounting bolts, grease handling, flange alignment, run-in guidance, and storage requirements for strain-wave gear assemblies.

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Inspection Records

Serialized acceptance data is available for OEM programs after product family and production release status are confirmed.

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Selection note: harmonic drive reducer versus cycloidal reducer

A harmonic drive reducer is usually selected when compact coaxial geometry, low lost motion, and high ratio in a single stage are decisive. Cycloidal drives can be better when repeated shock load and high impact resistance dominate the duty cycle. The correct review compares peak torque, RMS torque, allowable input rpm, torsional stiffness, moment load, and expected life rather than treating both technologies as interchangeable speed reducers.