SITO DRIVE HS-20-III Reducer, 30-120 Ratios, 15-40 Nm Rated Torque for Robotics

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-III reducer is offered in 30, 50, 80, 100, and 120 speed-ratio options for robotics applications. At a 2000 r/min input, rated torque ranges from 15 to 40 Nm by ratio, while allowable input speed is 6500 rpm and allowable average speed is 3500 rpm. Select the ratio according to the required reduction and the corresponding torque values.

Features

Five selectable transmission ratios: 30, 50, 80, 100, and 120.
Backlash is ≤20 arcsec for ratios 30 and 50, and ≤10 arcsec for ratios 80, 100, and 120.
Moment of inertia is 0.193 × 10⁻⁴ kg·m² for all listed ratio options.

Specifications

Parameter	Ratio 30	Ratio 50	Ratio 80	Ratio 100	Ratio 120
Model	HS-20-III	HS-20-III	HS-20-III	HS-20-III	HS-20-III
Transmission ratio	30	50	80	100	120
Rated torque at 2000 r/min 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

Applications

Humanoid robots and exoskeletons: choose the ratio and corresponding torque rating for joint-drive reduction requirements.
Robotic arms and quadruped robots: use the listed backlash and speed limits when assessing motion-axis drivetrain requirements.
AGV vehicles and ARU robots: select from the available reduction ratios to suit the required drive-speed reduction.