SITO DRIVE CS Mini-05-1U-U Micro Harmonic Reducer, 30/50/80 Ratios for Compact Robotics

SITO DRIVE

$207.60 USD

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Speed Ratio 30 50 80

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Overview

The SITO DRIVE CS Mini-05-1U-U micro harmonic reducer is offered with 30, 50, or 80 speed-ratio options for compact robotic and motion-transmission assemblies. At a 2,000 r/min input speed, rated torque ranges from 0.25 to 0.52 Nm by ratio. The reducer has a stated maximum allowable input speed of 10,000 rpm, backlash of ≤20 arcsec, and a compact installation drawing with mounting and shaft dimensions.

Features

CS Mini-05-1U-U micro harmonic reducer.
Selectable transmission ratios: 30, 50, or 80.
Maximum allowable input speed: 10,000 rpm.
Allowable average speed: 6,500 rpm.
Backlash: ≤20 arcsec.

Specifications

Performance by Transmission Ratio

Parameter	Ratio 30	Ratio 50	Ratio 80
Model	CS-05-1U-U	CS-05-1U-U	CS-05-1U-U
Transmission ratio	30	50	80
Rated torque at 2,000 r/min input	0.25 Nm	0.4 Nm	0.52 Nm
Peak torque allowed during start/stop	0.5 Nm	0.9 Nm	1.35 Nm
Maximum allowable average load torque	0.38 Nm	0.53 Nm	0.84 Nm
Instantaneous maximum torque	0.9 Nm	1.8 Nm	2.5 Nm
Maximum allowable input speed	10,000 rpm	10,000 rpm	10,000 rpm
Allowable average speed	6,500 rpm	6,500 rpm	6,500 rpm
Moment of inertia	2.5 × 10⁻⁴ kg·m²	2.5 × 10⁻⁴ kg·m²	2.5 × 10⁻⁴ kg·m²
Backlash	≤20 arcsec	≤20 arcsec	≤20 arcsec

Installation Drawing Dimensions

Item	Specified value
Diameter	≤22 mm
Thickness	≤38 mm
Weight	≤0.042 kg
Front mounting face	Square, 20 mm ±0.1 mm
Axial dimension	8.50 mm
Left-side flange axial dimension	2 mm
Body length	18 mm
Right-side flange axial dimension	2 mm
Right-side shaft projection	7.50 mm
Axial step dimension	1.50 mm
Right-side shaft-section axial dimension	6.50 mm
Left-side shaft projection	7.50 mm
Left-side shaft vertical dimension	3.50 mm
Stepped cylindrical section	Ø19.50 mm, tolerance −0.02 / −0.04
Stepped cylindrical section	Ø15 mm, tolerance −0.02 / −0.04
Left-side shaft	Ø4 mm
Right-side shaft	Ø3 mm, tolerance −0.05
Right-side shaft	Ø9 mm, tolerance −0.02
Right-side shaft-section vertical dimension	2.6 mm
Output-side circular feature	Ø23 mm
Mounting interface	Four M2-6H threaded holes; depth 4

Applications

Use this micro harmonic reducer in compact robotic and motion-transmission assemblies where the selected 30, 50, or 80 ratio, torque limits, speed limits, backlash, and installation geometry can be matched to the mechanism. The documented mounting face, threaded-hole pattern, and shaft dimensions support mechanical layout and installation planning.