HYT Integrated Harmonic Actuator

The HYT-I series is a miniaturized product developed to meet market needs. Its flexspline is a hollow-flange standard cylindrical structure; the whole unit is compact and integrates the bearing flange internally, allowing the motor to be mounted directly and used immediately. Compared with the HCS series of the same torque capacity, HYT is more compact with a thin-wall structure, pursuing smaller size without changing performance. The HYT-I harmonic reducer offers high precision, high efficiency and high rigidity, with compact structure and light weight — ideal for space-constrained applications.

Model Range:Frame 14 / 17 / 20 / 25 / 32 / 40
Structure: Integrated actuator (flange + output plate)
Reduction Ratio: 30 / 50 / 80 / 100
Ratio Code: U-I

23 model codes · frame 14 / 17 / 20 / 25 / 32 / 40 · See the model matrix ↓

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Specifications

Typical reference parameters. Final specifications are subject to our technical confirmation.

Parameter	Value
Reduction Ratio	30 / 50 / 80 / 100
Rated Torque @2000 rpm (N·m)	5.4 – 686
Peak Torque (N·m)	up to 1,180
Backlash	≤ 20 arc-sec (≤ 10 optional)
Rated Input Speed	2000 – 3000 rpm
Design Life	≥ 7,000 h
Operating Temp.	-10 °C ~ +50 °C
Output Form	Flange + output plate

Model Matrix

WHS-HYT Model Matrix

23 orderable codes across frame sizes 14 / 17 / 20 / 25 / 32 / 40 — pick the frame first, then the reduction ratio.

Frame	30 : 1	50 : 1	80 : 1	100 : 1
14	WHS-HYT-14-30-U-I	WHS-HYT-14-50-U-I	WHS-HYT-14-80-U-I	WHS-HYT-14-100-U-I
17	WHS-HYT-17-30-U-I	WHS-HYT-17-50-U-I	WHS-HYT-17-80-U-I	WHS-HYT-17-100-U-I
20	WHS-HYT-20-30-U-I	WHS-HYT-20-50-U-I	WHS-HYT-20-80-U-I	WHS-HYT-20-100-U-I
25	WHS-HYT-25-30-U-I	WHS-HYT-25-50-U-I	WHS-HYT-25-80-U-I	WHS-HYT-25-100-U-I
32	WHS-HYT-32-30-U-I	WHS-HYT-32-50-U-I	WHS-HYT-32-80-U-I	WHS-HYT-32-100-U-I
40	—	WHS-HYT-40-50-U-I	WHS-HYT-40-80-U-I	WHS-HYT-40-100-U-I

Frame size = outside diameter of the circular spline (mm). "—" marks a combination that is not offered. Every HYT unit ships with flange and output plate (no separate housing needed). Frame 40 is built in 50 / 80 / 100 : 1 only.

All five series · 53 codes → Request a Quote

Technical Detail

Structure & Working Principle

The HYT series integrates the support bearing and mounting flange into the reducer body, using a hollow flanged flexspline. The motor can be mounted directly and the unit is ready to use out of the box. This shortens the drive chain, removes a separate bearing support and raises overall stiffness.

Key Features

Integrated support bearing and mounting flange
Motor mounts directly — plug-and-use assembly
Hollow flanged flexspline allows center cable routing
Higher stiffness, shorter drive chain
Simplifies mechanical design and reduces parts count

Selection Guide

Choose HYT when you want a compact integrated actuator — for robot joints and rotary axes where fast assembly, high stiffness and center cable routing matter more than the absolute minimum size. Confirm the motor interface and flange pattern against your servo.

Products

Related Products

Cup-Type

HCS Standard Cup-Type Harmonic Reducer

The flexspline adopts a cup-type standard cylindrical structure with compact size; the input shaft mates directly with the wave generator bore and connects via a flat key, typically with the circular spline fixed and the flexspline as output. Highly meshed and lightweight. The HCS harmonic reducer features high transmission accuracy, low noise, fast response and excellent reliability. Because multiple teeth engage simultaneously at two symmetric 180° positions, pitch and cumulative pitch errors average out, yielding very high positional and rotational accuracy.

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Cup-Type

HCD Ultra-Short Cup Harmonic Reducer

The HCD series is a miniaturized product developed to meet market needs. Compared with the HCS series of the same torque capacity, HCD is more compact with a thin-wall structure, pursuing smaller size without changing performance and pushing "small but beautiful" to the limit. In this harmonic reducer, the wave generator (usually a cam combined with a flexible bearing) is inserted into the flexspline, forcing it into an elliptical elastic deformation. The long axis fully meshes with the circular spline tooth space while the short axis fully disengages. As the wave generator rotates continuously, the flexspline deforms repeatedly through engage/disengage cycles, transmitting motion and reducing speed.

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Hat-Type

HST Standard Hat-Type Harmonic Reducer

The HST-I series flexspline is a hollow-flange standard cylindrical structure; the whole unit is compact, the input shaft mates directly with the wave generator bore and connects via a flat key. It can be configured either with the circular spline fixed and flexspline as output, or vice versa. The HST-I harmonic reducer offers high precision, high efficiency and high rigidity, with compact structure and light weight — well suited to space-constrained applications.

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Hat-Type

HSD Ultra-Short Hat-Type Harmonic Reducer

The HSD series is an ultra-short hat-type product developed from the HST platform. Its flexspline uses a hollow-flange structure; the unit is shorter axially and more compact, with an internal support bearing and fully sealed construction for easy installation. The HSD harmonic reducer offers high precision, high rigidity and light weight — ideal for axial space-constrained, weight-sensitive applications.

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