SITO DRIVE CS Mini-08 Harmonic Reducer, 30/50/100 Ratio Options for Robotics

SITO DRIVE

$224.40 USD

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Speed Ratio 30 50 100

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Overview

SITO DRIVE CS Mini-08-1U-U is a compact harmonic reducer offered with 30, 50, or 100 transmission-ratio options for robotic motion systems and other compact mechanisms. At a 2,000 r/min input, rated torque ranges from 0.9 to 2.4 Nm according to ratio; all listed options have an 8,500 rpm maximum allowable input speed and ≤20 arcsec backlash. Review ratio-specific torque limits and the installation drawing when selecting.

Features

CS-08-1U-U reducer with selectable 30, 50, or 100 transmission ratios.
Maximum allowable input speed: 8,500 rpm; allowable average speed: 3,500 rpm.
Backlash: ≤20 arcsec for each listed ratio.

Specifications

Ratio-specific performance

Parameter	Ratio 30	Ratio 50	Ratio 100
Model	CS-08-1U-U	CS-08-1U-U	CS-08-1U-U
Transmission ratio	30	50	100
Rated torque at 2,000 r/min input	0.9 Nm	1.8 Nm	2.4 Nm
Peak torque allowed during start/stop	1.8 Nm	3.3 Nm	4.8 Nm
Maximum allowable average load torque	1.4 Nm	2.3 Nm	3.3 Nm
Instantaneous maximum torque	3.3 Nm	6.6 Nm	9 Nm
Maximum allowable input speed	8,500 rpm	8,500 rpm	8,500 rpm
Allowable average speed	3,500 rpm	3,500 rpm	3,500 rpm
Moment of inertia	3.2 × 10³ (× 10⁻⁴ kg·m²)	3.2 × 10³ (× 10⁻⁴ kg·m²)	3.2 × 10³ (× 10⁻⁴ kg·m²)
Backlash	≤20 arcsec	≤20 arcsec	≤20 arcsec

Installation dimensions and interfaces

Drawing item	Specified value
Displayed size	30 × 67.5 mm
Overall width	30 mm
Overall length	67.5 mm
Diameter limit	≤50 mm
Thickness limit	≤67.5 mm
Weight	≤0.106 kg
Front-face diameter callout	Ø35
Front-face mounting holes	Four M3 threaded holes; depth marking 6
Square dimension	□30 ±0.10
Left shaft callout	4.50 +0/−0.05
Left shaft diameter	Ø5 +0/−0.02
Drawing callouts	11; 13; 2.60; Ø16; Ø28; 13.50; 5; Ø25; 2.50 (two locations); 29.50
Output shaft diameter	Ø9 +0/−0.002
Output shaft-end diameter	Ø8 0/−0.05
Output shaft diameter	Ø29 0/−0.02

Applications

Suitable for designing compact robotic joints and motion modules where the required reduction ratio, torque limits, input speed, backlash, and drawing-defined mounting geometry can be matched to the application.