SITO DRIVE HS-20-I Reducer, 30–120 Speed Ratio, for Robotic Motion Applications

SITO DRIVE

$384.72 USD

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Speed Ratio 30 50 80 100 120

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Overview

The SITO DRIVE HS-20-I Reducer is offered in 30, 50, 80, 100, and 120 transmission-ratio options for robotic and motion applications. At a 2000 rpm input speed, rated torque ranges from 15 to 40 Nm by ratio. Select the ratio to suit the required reduction, while comparing the corresponding torque limits and backlash specification for the chosen option.

Features

Five selectable transmission ratios: 30, 50, 80, 100, and 120.
Maximum allowable input speed of 6500 rpm and allowable average speed of 3500 rpm for every listed ratio.
Backlash of ≤20 arcsec for ratios 30 and 50, and ≤10 arcsec for ratios 80, 100, and 120.

Specifications

Parameter	Ratio 30	Ratio 50	Ratio 80	Ratio 100	Ratio 120
Model	HS-20-I	HS-20-I	HS-20-I	HS-20-I	HS-20-I
Transmission ratio	30	50	80	100	120
Rated torque at 2000 rpm input	15 Nm	25 Nm	34 Nm	40 Nm	40 Nm
Peak torque allowed during start/stop	27 Nm	56 Nm	74 Nm	82 Nm	87 Nm
Maximum allowable average load torque	20 Nm	34 Nm	47 Nm	49 Nm	49 Nm
Instantaneous maximum torque	50 Nm	98 Nm	127 Nm	147 Nm	147 Nm
Maximum allowable input speed	6500 rpm	6500 rpm	6500 rpm	6500 rpm	6500 rpm
Allowable average speed	3500 rpm	3500 rpm	3500 rpm	3500 rpm	3500 rpm
Moment of inertia	0.193 (×10⁻⁴ kg·m²)	0.193 (×10⁻⁴ kg·m²)	0.193 (×10⁻⁴ kg·m²)	0.193 (×10⁻⁴ kg·m²)	0.193 (×10⁻⁴ kg·m²)
Backlash	≤20 arcsec	≤20 arcsec	≤10 arcsec	≤10 arcsec	≤10 arcsec

SITO HS 20 I Reducer — 3D Model (STEP)

SITO HS 20 I Draw instalation drawing — Installation Drawing (PDF)

Applications

Use the HS-20-I Reducer in humanoid robots, robotic arms, exoskeletons, quadruped robots, AGV vehicles, and ARU robots where a selectable reduction ratio can be matched to the required torque and backlash values. For robotic joint and arm-axis designs, the ratio-specific torque table supports selection against expected input speed and load conditions.