Sample supplier report · October 21, 2026

Robotics motor and gearbox suppliers, United States

Motor and gearbox suppliers for robotics in the US” Assumed: any volume · ISO 9001The buyer’s question, as they typed it. Assumed: Assumed: any volume · ISO 9001.

The answer

Send the RFQ to Harmonic, maxon (U.S. operations) and ElectroCraft; 12 questions to settle first. Lead with Harmonic Drive, robot gearing made in Massachusetts; second-source maxon, which mounts gearheads on motors in Taunton; ElectroCraft as US fallback.

The shortlist

Rank	Supplier	Role	Where	Score
1	Harmonic Drive LLC	Lead	United States	19 / 20
2	maxon (U.S. operations)	Second source	Taunton, MA	18 / 20
3	ElectroCraft Inc.	Fallback	Stratham, NH	18 / 20
4	Teknic, Inc.	Watch	Victor, NY	16 / 20
5	Moog Animatics	Watch	East Aurora, NY	14 / 20

Scorecard, criterion by criterion

Criterion	Harmonic	maxon (U.S. operations)	ElectroCraft	Teknic	Moog Animatics
Robotics motors/gearboxes ×2Your ask	8	8	6	4	6
US manufacturing ×2Your ask	8	6	8	8	4
Motor-gearbox assembly	3	4	4	4	4
Total of 20	19	18	18	16	14

Points as weighted: the buyer’s asks count double where marked. A dash means nothing published backs a score, so it isn’t counted as zero.

The suppliers

Harmonic Drive LLC

Lead

Robot-focused strain wave gearing and actuators, mostly made in Massachusetts. Products used primarily in robotics and semiconductor manufacturing. Most products sold are made at its Massachusetts plant.

maxon (U.S. operations)

Second source · Taunton, MA

Small precision motors with gearheads, designed and produced in Taunton, MA. Motors from 4 to 90 mm, up to 500 W. Taunton site runs design engineering and production.

ElectroCraft Inc.

Fallback · Stratham, NH

US motor and gearmotor plants with a mobile-robot wheel drive. Names autonomous mobile robotics as a key market. Also serves medical and lab equipment.

Key findings

Harmonic leads on plant area at 97,000 sq ft; next maxon (U.S. operations) at 59,000 sq ft.
Teknic names the most customers (3); Moog Animatics next (2).
US-made parts enter duty-free; Chinese gearboxes face 37.5%
Changes to watch at five suppliers.

Settle these before you send the RFQ

Q1Confirm in writing: ISO 9001.
Q2Ask every bidder where it would build the order.
Q3Current ISO 9001:2015 certificate and whether Beverly or Peabody is the producing plant. (Harmonic)
Q4Which motors and gearheads are made in Taunton versus Switzerland; certificate renewal. (maxon (U.S. operations))
Q5Gallipolis ISO 9001 certificate copy and where the MobilePower Wheel-Drive is built. (ElectroCraft)
Q6Whether Teknic holds any ISO 9001 certificate; robotics references. (Teknic)
Q7Confirm the floor area of the plant that would build the order. (Moog Animatics)
Q8Plant address for SmartMotors and gearheads, and current certificate validity. (Moog Animatics)

How the research was done

38 found → 32 fit the brief → 19 researched → 5 ranked. Every score in the full report links to the page it came from, and the open questions are written out for the RFQ.

Sources

Read the full report

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