Component

NexBot Robotics HRM121-007 Harmonic Gearbox 120:1 Ratio

High-precision harmonic gearbox with a 120:1 gear ratio, delivering zero-backlash performance for robotic joints requiring exceptional positional accuracy.

List price

$2,250.00

In stockReady to order

Quantity

Review documentation

SKU

NXB-GBX-HRM121-007

Availability

In stock

Brand

NexBot Robotics

Product type

Component

Specification, installation, and operating documents

The documents below are the ones buyers, maintenance planners, and commissioning teams usually review before approving a part or release to site.

Technical data sheet

NexBot Robotics HRM121-007 Harmonic Gearbox 120:1 Ratio — Technical Datasheet

Use for specifications, dimensions, ratings, and technical fit checks.

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Installation guide

NexBot Robotics HRM121-007 Harmonic Gearbox 120:1 Ratio — Installation Guide

Use for commissioning steps, mounting details, and setup prerequisites.

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User manual

NexBot Robotics HRM121-007 Harmonic Gearbox 120:1 Ratio — User Manual

Use for operating instructions, maintenance guidance, and day-two reference.

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Knowledge and service

Related guidance and service history

Buyers and maintenance teams usually review related procedures and prior resolved cases before they approve a replacement part or field action.

Knowledge guidance

Knowledge

E-8041: Troubleshooting Excessive Positional Error or Backlash in Wrist Axis with HRM121-007 Gearbox

Troubleshooting

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List price

$32,500.00

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Reviews

What customers are saying

Customer feedback for NexBot Robotics HRM121-007 Harmonic Gearbox 120:1 Ratio. Scroll to read individual reviews and see each reviewer’s score.

Elena Petrova

Exceptional Positional Accuracy for Demanding Applications

Pros

• True zero-backlash performance
• High torsional stiffness under load
• Smooth motion control at low speeds

We integrated the HRM121-007 into a custom articulated arm for a high-speed electronics assembly cell. The zero-backlash performance is absolutely critical for our application, and this ...

David Chen

Good Accuracy but Thermal Performance is a Concern

Pros

• Excellent positional accuracy for prototyping

We're using this harmonic gearbox in a prototype for a new collaborative robot joint. The positional accuracy is excellent, and the zero-backlash is as advertised, which ... Pros ... Cons

Marcus Thorne

Solid Replacement Gearbox, Reliable Performance

Pros

• Durable build quality
• Direct fit for our existing mount
• Maintains position without drift

I ordered this HRM121-007 to replace a failing gearbox on Axis 5 of one of our primary packaging robots during a scheduled maintenance window. ... Pros ... Maintains position without drift