LHT High Precision Harmonic Gearbox

LHT series features a hollow flanged barrel structure, with a compact overall design and sleek, simple construction. The flexible wheel and rigid wheel are connected by high rigidity cross roller bearings, making it an easily operated modular product.

Key Features

  • Compact and concise design
  • Input and output coaxial
  • Zero backlash
  • Excellent positional accuracy and repeatability.
Inquiry
  • Product Description
  • Specifications
  • Product Video
  • Application
  • FAQ
  • Download

Product Description

The LHT Series use hat type flexspline. We can divide LHT series into 5 versions, LHT-I, LHT-II,LHT-III,LHT-IV and LHT-V.

Differences Among Different LHT harmonic reducers:

LHT-I: use uni-body type wave generator

LHT-II: cross slider type wave generator

LHT-III: large bore with a hollow hole

LHT-IV: shaft input type

LHT-V: Simple type
 

Advantages

LHT-I/II:More compact, two connection ways, motor can be connected with the gearbox directly, it's easy for installation.

LHT-III:A large-diameter hollow shaft hole and support bearings in it, fully sealed structure. Suitable for situation where the wire needs to be threaded from the center of the harmonic gearbox.

LHT-IV:The wave generator cam comes with input shaft.Suitable for different input forms, and situation where bevel gears or timing belt drive need to be installed at the input end.

LHT-V:Based on LHT-III series harmonic drive gearbox, users can redesign freely for lower weight and thinner thickness while properties have no change.

Specifications

Specification of LHT/LHN Rated parameters

Model Reduction ratio Rated torque at 2000r/min input Permissible peak torque at start and stop Permissible maximum value for average load torque Permissible maximum momentary torque Permissible maximum input rotational speed Permissible average input rotational speed Backlash Weight Design life
Grease Grease
Nm kgfm Nm kgfm Nm kgfm Nm kgfm r/min r/min Arc Sec Kg Hour
8 50 1.8 0.18 3.3 0.34 2.3 0.23 6.6 0.67 8500 3500 ≤40 LHT-I:0.06 10000
100 2.4 0.24 4.8 0.49 3.3 0.34 9 0.92 10000
11 50 3.5 0.36 8.3 0.85 5.5 0.56 17 1.73 8500 3500 ≤30 LHT-I:0.27 10000
80 4.5 0.46 9.9 1.01 8 0.82 22.5 2.3 10000
100 5 0.51 11 1.12 8.9 0.91 25 2.55 10000
14 50 5.4 0.55 18 1.8 6.9 0.7 35 3.6 8500 3500 ≤20 LHT-I/II:0.4
LHT-III:0.70
LHT-IV:0.66
LHT-V:0.40
LHT-C:0.14
LHN-III:0.56
LHN-IV:0.50
10000
80 7.8 0.8 23 2.4 11 1.1 47 4.8 15000
100 7.8 0.8 28 2.9 11 1.1 54 5.5 15000
120 7.8 0.8 28 2.9 11 1.1 54 5.5 15000
17 50 16 1.6 34 3.5 26 2.6 70 7.1 7300 3500 ≤20 LHT-I/II:0.54
LHT-III:0.99
LHT-IV:0.90
LHT-V:0.62
LHT-C:0.19
LHN-III:0.79
LHN-IV:0.69
10000
80 22 2.2 43 4.4 27 2.7 87 8.9 15000
100 24 2.4 54 5.5 39 4 110 11 15000
120 24 2.4 54 5.5 39 4 86 8.8 15000
20 50 25 2.5 56 5.7 34 3.5 98 10 6500 3500 ≤20 LHT-I/II:0.72
LHT-III:1.32
LHT-IV:1.29
LHT-V:0.82
LHT-C:0.27
LHN-III:1.04
LHN-IV:0.98
10000
80 34 3.5 74 7.5 47 4.8 127 13 15000
100 40 4.1 82 8.4 49 5 147 15 15000
120 40 4.1 87 8.9 49 5 147 15 15000
160 40 4.1 92 9.4 49 5 147 15 15000
25 50 39 4 98 10 55 5.6 186 19 5600 3500 ≤20 LHT-I/II:1.22
LHT-III:2.02
LHT-IV:1.99
LHT-V:1.40
LHT-C:0.46
LHN-III:1.65
LHN-IV:1.43
10000
80 63 6.4 137 14 87 8.9 255 26 15000
100 67 6.8 157 16 108 11 284 29 15000
120 67 6.8 167 17 108 11 304 31 15000
32 50 76 7.8 216 22 108 11 382 39 4800 3500 ≤20 LHT-I/II:2.54
LHT-III:4.20
LHT-IV:4.00
LHT-V:2.70
LHT-C:1.00
LHN-III:3.19
LHN-IV:3.17
10000
80 118 12 304 31 167 17 568 58 15000
100 137 14 333 34 216 22 647 66 15000
120 137 14 353 36 216 22 686 70 15000
40 50 137 14 402 41 196 20 686 70 4000 3000 ≤20 LHT-I/II:4.40
LHT-III:7.20
LHT-IV:7.00
LHT-V:4.06
LHT-C:1.87
LHN-III:5.95
10000
80 206 21 519 53 284 29 980 100 15000
100 265 27 568 58 372 38 1080 110 15000
120 294 30 617 63 451 46 1180 120 15000

Product Video

FAQ
  • What is a harmonic drive box?

    +

    A harmonic drive box is a type of gear system that produces high reduction ratios in a compact size. It uses the mechanics of a flexible element deforming to transmit motion and achieve high precision and torque.

  • How does a harmonic gear box work?

    +

    A harmonic gear box works by using a circular spline, flexspline, and a wave generator. The wave generator deforms the flexspline into an elliptical shape, which then engages with the teeth of the circular spline at two points, providing a high reduction ratio through the difference in tooth count between the engaged elements.

  • What are the main components of a strain wave drive?

    +

    The main components are the circular spline (fixed outer ring), the flexspline (flexible inner ring with fewer teeth), and the wave generator (an elliptical disc that fits inside the flexspline).

  • What are the advantages of using harmonic/harmonic drive boxes?

    +

    Strain wave/harmonic gearboxes offer high precision, zero backlashes, high torque capacity, compact size, and lightweight. They are also known for their excellent positional accuracy and repeatability.

  • What applications are harmonic-type drives used in?

    +

    They are used in applications requiring high precision and reliability, such as robotics, aerospace, defense, medical equipment, and semiconductor manufacturing equipment.

  • How do you select a strain wave drive for a specific application?

    +

    Selection depends on factors like torque requirements, desired reduction ratio, space constraints, load capacity, and environmental conditions. It's essential to consult with manufacturers or experts to choose the appropriate model.

  • What are the different types of Strain Wave Gearboxes?

    +

    Circular Spline Gearboxes

    Cup-Type Gearboxes

    Flat Gearboxes

  • What is a Circular Spline?

    +

    The Circular Spline in Strain Wave Gearboxes are characterized by their robust design.

Download

  • LHT Series
  • LHT-I Series
  • LHT-II Series
  • LHT-III Series
  • LHT-IV Series
  • LHT-V Series
  • LHT-3D Series
Download

NEED A ONE-STOP SOLUTION?

We believe in delivering excellent customer service and we are dedicated to our customers.
If you want to know more about our products, prices, and customized services, please contact us with more details, we will respond as soon as possible.

×

Contact Us

captcha
×

Inquire

*Name
*Email
Company Name
Tel
*Message