HARDWARE / PRODUCTAdded 23 Aug 2026

CSD-2UH Gear Unit

Harmonic Drive
CSD-2UH Gear Unit

This housed gear is compact and ultra-flat, available in 7 sizes with ratios from 50:1 to 100:1, offering zero backlash and high load capacity.

Key figurescomparable across the catalogue

Mass
0.35 kg

Normalised to common units so this product can be compared with others in its category. The supplier's own wording is below.

As published by the supplier

Reduction ratios
30:1 to 160:1
Rated Torque L10
3.7 Nm to 329 Nm
Limit for Repeated Peak Torque
12 Nm to 686 Nm
Limit for Momentary Peak Torque
24 Nm to 1,440 Nm
Backdriving Torque
2.5 Nm to 67 Nm
Standard Accuracy
1.5 arc min to 1 arc min
Mass
0.35 kg to 6.9 kg
K1 Torsional Stiffness
0.29 10^4 Nm / rad to 21 10^4 Nm / rad
K2 Torsional Stiffness
0.37 10^4 Nm / rad to 29 10^4 Nm / rad
K3 Torsional Stiffness
0.47 10^4 Nm / rad to 37 10^4 Nm / rad
Output Moment Stiffness (Km)
4.38 10^4 Nm / rad to 171 10^4 Nm / rad

About

The CSD-2UH Gear Unit from Harmonic Drive is a housed gear designed to be compact and ultra-flat. It is available in 7 different sizes and offers reduction ratios ranging from 50:1 to 100:1. Key features of this gear unit include zero backlash, an ultra-flat profile, and a compact and simple design. It is engineered for high load capacity and is lightweight, making it suitable for various applications where space and weight are critical. The CSD-2UH series also offers reduction ratios from 30:1 to 160:1, providing flexibility for different performance requirements.

Documentation

Need the full ICD, test reports or a specific revision? Ask the supplier directly.

Source: www.harmonicdrive.net ↗

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