LSN Light Weight Harmonic Drive

LSN series is the lightweight product line, designed to reduce the weight of the mechanical equipment itself and facilitate the lightweight construction of industrial robots. It enables higher speeds and increased payload capacity for industrial robots.

Key Features

  • CE Marking
  • Light weight, the weight is 30% lighter
  • Compact and simple design
  • Non-backlash
  • Easy for installation, motor can be connected directly
  • Input and output coaxial
  • Excellent positioning accuracy and rotation accuracy
Inquiry
  • Product Description
  • Specifications
  • Product Video
  • Application
  • FAQ
  • Download

Product Description

Compared with the LSS series of small harmonic drive, the LSN harmonic reducer has the same structure and performance as the LSS harmonic reducers. The only difference and advantage is its lighter weight; the weight of the LSN is 30% lighter. This is because we changed the material of the circular spline from steel to aluminum alloy.
 

Advantages

Lightweight structure is achieved through optimized design and the utilization of premium materials, resulting in a significant 30% reduction in product weight.

Cup-shaped standard barrel structure for the flexible wheel, combined with high rigidity full roller cross bearings.

Utilizing the self-developed CMP heat treatment process, the LS tooth profile design ensures precision grinding with 1um track accuracy.

Compact and concise structural design, with zero backlash, direct motor connection, and convenient installation.

Input and output coaxial.

Excellent positional accuracy and repeatability..

Specifications

Specification of LSS/LSN 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 LSN-I:0.08 10000
100 2.4 0.24 4.8 0.49 3.3 0.34 9.0 0.92 10000
11 50 3.5 0.36 8.3 0.85 5.5 0.56 17 1.73 8500 3500 ≤30 LSS-I:0.25
LSN-I:0.17
10000
80 4.5 0.46 9.9 1.01 8.0 0.82 22.5 2.30 10000
100 5 0.51 11 1.12 8.9 0.91 25.0 2.55 10000
14 50 5.4 0.55 18 1.8 6.9 0.7 35 3.6 8500 3500 ≤20 LSS-I/II:0.51
LSS-C:0.09
LSN-I/II:0.39
LSSF-I:0.51
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 LSS-I/II:0.67
LSS-C:0.15
LSN-I/II:0.52
LSSF-I:0.67
10000
80 22 2.2 43 4.4 27 2.7 87 8.9 15000
100 24 2.4 54 5.5 39 4 108 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 LSS-I/II:0.96
LSS-C:0.28
LSN-I/II:0.73
LSSF-I:0.96
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 LSS-I/II:1.46
LSS-C:0.42
LSN-I/II:1.14
LSSF-I:1.46
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 LSS-I/II:3.11
LSS-C:0.89
LSN-I/II:2.47
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 LSS-I/II:4.6
LSS-C:1.7
LSN-I/II:3.64
LSSF-I:4.6
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.

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  • LSN Series
  • LSN-I Series
  • LSN-II Series
  • LSN-3D Series
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