Zhejiang Laifual Drive Co., Ltd
Zhejiang Laifual Drive Co., Ltd
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LHT Large Diameter Hollow Hole, Flat Shape Harmonic Drive Actuator
LHN Large Diameter Hollow Hole, Flat Shape Harmonic Actuator
lht v
lht v

LHT/LHN/LHG Large Diameter Hollow Hole, Flat Shape Harmonic Gearbox

The LHT Series of hollow output shaft gearboxes use hat type flex spline. We can divide the LHT drive actuators 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


Applications of LHT Harmonic Drive Actuators: 

  • Industrial robots;

  • Service robots;

  • Medical Devices;

  • Automation and special equipment;

  • Printed circuit manufacturing equipment.



LHN series: lightweight product, 20% lighter than standard products.


Applications of LHN Harmonic Drive Actuators:

  • Industrial robots;

  • Service robots;

  • Medical Devices;

  • Automation and special equipment;

  • Printed circuit manufacturing equipment.

LHG Series: compared with the standard products, the LHG series of harmonic drive actuators have a 30% higher torque capacity. And the service life is increased by 43% and more reliable.


Applications of LHG Harmonic Drive Actuators:

  • Industrial robots; 

  • Service robots;

  • Medical Devices; 

  • Automation and special equipment; 

  • Printed circuit manufacturing equipment.

Features of Harmonic Shaft Gearboxes

  • Large bore with hollow hole, flat shape

  • Non-backlash

  • High positioning and rotational accuracies

  • Coaxial input and output

  • Compact and simple design

  • High torque capacity

  • High stiffness

  • Light weight

Specification of LHT Large Diameter Hollow Hole, Flat Shape Harmonic Gearbox

Rated Parameter Table of LHT/LHN Series Hollow Shaft Gearboxes


ModelReduction RatioRated torque at 2000r/min inputPermissible peak torque at start and stopPermissible maximum value for average load torquePermissible maximum momentary torquePermissible maximum input rotational speedPermissible average input rotational speedBacklashDesign life
GreaseGrease
NmkgfmNmkgfmNmkgfmNmkgfmr/minr/minArc    SecHour
14506.20.620.72.17.90.740.34.170003000≦3010000
8090.9272.712.71.354.15.5
10090.9323.312.71.362.16.3
175018.41.939429.9380.58.265003000≦3015000
8025.32.649.55313.2100.110.2
10027.62.8626.3454.6124.212.7
205028.82.964.46.6394112.711.556003000≦3015000
8039.14858.8545.5146.114.9
100464.794.39.6565.8169.117.2
120464.710010.2565.8169.117.2
160464.710010.2565.8169.117.2
255044.94.611311.5636.5213.921.848003000≦3015000
8072.57.415816.110010.2293.329.9
10077.17.918118.412412.7326.633.3
12077.17.919219.612412.7349.635.6
325087.48.924825.312412.743944.840003000≦3015000
80135.713.835035.619219.665366.6
100157.616.138339.124825.374475.9
4010030837.266067432441232126.740003000≦3015000


Rated Parameter Table of LHG Series Hollow Shaft Gearboxes



ModelReduction ratioRated torque at 2000r/min inputPermissible peak torque at start and stopPermissible maximum value for average load torquePermissible maximum momentary torquePermissible maximum input rotational speedPermissible average input rotational speedBacklashDesign life
GreaseGrease
NmkgfmNmkgfmNmkgfmNmkgfmr/minr/minArc    SecHour
145070.7232.390.9464.7140008500≦2015000
80101303.1141.4616.2
100101363.7141.4707.2
1750212.1444.5343.4919100007300≦2020000
80292.9565.7353.611312
100313.2707.2515.214315
2050333.3737.4444.512713100006500≦2020000
80444.5969.8616.216517
100525.310710.9646.519120
120525.311311.5646.519120
160525.312012.2646.519120
2550515.212713727.32422575005600≦2020000
80828.4178181131233234
100878.9204211401436938
120878.9217221401439540
3250991028129140144975170004800≦2020000
8015316395402172273875
10017818433442812984186
40100345357387548449140014356004000≦2020000



Specification of the Main Bearing for LHT Series



Type

Basic rated load

Allowable static moment Me

Weight

Basic rated dynamic load Cr

Basic rated static load Cr

KN

kgf

KN

kgf

Nm

kgfm

kg

14

5.8

590

86

880

74

7.6

0.39

17

10.4

1060

163

1670

124

12.6

0.56

20

14.6

1490

220

2250

187

19.1

0.73

25

21.8

2230

358

3660

258

26.3

1.23

32

38.2

3900

654

6680

580

59.1

2.54

40

38.2

3900

654

6680

580

59.1

7.2

Basic rated dynamic load refers to static radial load that makes dynamic rated life of bearing reach up to 1 million rotations.


Combinative structure of LHT series


Combinative Structure Of LHT LHN LHG Hollow Shaft Gearbox

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