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

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Quantity

Review documentation

SKU

NXB-GBX-HRM121-007

Availability

In stock

Brand

NexBot Robotics

Product type

Component

Specification, installation, and operating documents

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Technical data sheet

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

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Installation guide

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

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User manual

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

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Knowledge and service

Related guidance and service history

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Knowledge guidance

Knowledge article

TroubleshootingAdvancedR-20, R-50, C-10

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

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List price

$78,500.00

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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