Technical articles
Short technical updates on harmonic drive gearbox selection, motor pairing, reducer mounting, and motion control qualification.
2026-08-17 · Elena Markovic
Choosing a harmonic drive mechanism isn't a simple best-vs-alternative question. Here are three practical scenarios to help you decide, plus the specs that actually matter and the hidden costs to watch for.
Read technical note2026-08-17 · Elena Markovic
Choosing a harmonic drive mechanism isn't a simple best-vs-alternative question. Here are three practical scenarios to help you decide, plus the specs that actually matter and the hidden costs to watch for.
Continue reading2026-08-14 · Elena Markovic
An emergency specialist reflects on 200+ rush orders to explain what actually matters when motion control fails: harmonic drive vs cycloidal drive tradeoffs, what happens when a linear actuator fails, and how to pick a harmonic drive supplier who can really help.
Continue reading2026-08-14 · Elena Markovic
An admin buyer for a motion-control integration shop remembers the harmonic drive order that almost failed, and why she now always prioritizes guaranteed delivery for critical parts.
Continue reading2026-08-13 · Elena Markovic
Practical guide from a quality inspector. Covers harmonic-drive reducers, high torque servo motors, how fast a stepper motor can turn, and when T-slot roller bearings are the right choice.
Continue reading2026-08-13 · Elena Markovic
A scenario-based guide to selecting motion control components — when to use a harmonic drive vs a bevel gear vs a NEMA 17 servo — with real procurement experience behind the advice.
Continue reading2026-08-12 · Elena Markovic
A procurement manager's guide to choosing between harmonic drives, ball screw linear actuators, linear induction motors, and stepper motors — based on six years and $180K in real motion control orders.
Continue reading2026-08-12 · Elena Markovic
A practical checklist for specifying harmonic drive gear reducers, including harmonic drive grease, small electric actuators, a fernco flexible coupling warning, and what's a ball bearing doing inside a harmonic drive.
Continue reading2026-08-11 · Elena Markovic
An engineer with 200+ rush orders behind him explains how to choose between harmonic drives and cycloidal gearboxes, what to ask a harmonic drive supplier, and why motor shaft couplings and bearing quality can make a precision axis worse than you think.
Continue reading2026-08-11 · Elena Markovic
A practical, scenario-based guide to harmonic drive cost, hybrid stepper motor vs AC induction motor selection, and the ball bearing vs roller bearing question—written from a quality inspector's perspective.
Continue reading2026-08-10 · Elena Markovic
Why cheap harmonic-drive gearboxes are more expensive than they look — a purchasing administrator’s honest breakdown of efficiency claims, hidden costs, and supplier risk.
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