HARDWARE / PRODUCTAdded 23 Aug 2026

CSF-1U-CC Miniature Gear Units

Harmonic Drive
CSF-1U-CC Miniature Gear Units

The CSF 1U-CC mini gearheads are designed for motor mounting with an adapter plate, offering shaft or flange output and zero backlash.

Key figurescomparable across the catalogue

Mass
0.011 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

Zero backlash
Yes
High positioning accuracy
± 1.5 to 10 arc-min
Diameter
⌀13 mm~52 mm
Mass
11.4 g~335 g
Tooth profile
S

About

The CSF 1U-CC mini gearheads from Harmonic Drive are engineered for precise motion control applications. These square body gearheads are designed to be mounted to a motor using an adapter plate, providing flexibility in integration. They are available with either a shaft output or a flange output, catering to various mechanical interface requirements. A key feature of these gearheads is their zero backlash, which is crucial for applications demanding high precision and repeatability. They also offer high positioning accuracy, ranging from ± 1.5 to 10 arc-minutes, all within a very compact package. The design incorporates a compact 4-point ball bearing mounted in the main shaft, contributing to their robust performance. With diameters ranging from 13mm to 52mm and masses from 11.4g to 335g, these miniature gearheads are suitable for space-constrained environments. They utilize an S tooth profile for efficient power transmission. For those seeking a complete actuator incorporating this gearhead, the RSF-3 supermini is available. The CSF-3 supermini is highlighted as Harmonic Drive’s smallest strain wave gear currently available.

Documentation

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

Source: www.harmonicdrive.net ↗

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