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

Zhejiang Laifual Drive Co., Ltd. is one of professional custom gear
manufacturer. We provide LSD Shorten Thin Harmonic Gearbox, LFS Ultra Flat
Harmonic Gearbox, harmonic gearhead and so on. Want to know more? Please
contact us.



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 hollow shaft planetary gearbox:

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.

Features of LHT Large Diameter Hollow Hole, Flat Shape hollow output shaft
gearbox

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

Rated Parameter Table of LHT/LHN Series

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 Design
life
Grease Grease
Nm kgfm Nm kgfm Nm kgfm Nm kgfm
r/min r/min Arc    Sec Hour
14 50 6.2 0.6 20.7 2.1 7.9 0.7 40.3 4.1
7000 3000 ≦30 10000
80 9 0.9 27 2.7 12.7 1.3 54.1 5.5
100 9 0.9 32 3.3 12.7 1.3 62.1 6.3
17 50 18.4 1.9 39 4 29.9 3 80.5 8.2
6500 3000 ≦30 15000
80 25.3 2.6 49.5 5 31 3.2 100.1 10.2
100 27.6 2.8 62 6.3 45 4.6 124.2 12.7
20 50 28.8 2.9 64.4 6.6 39 4 112.7 11.5
5600 3000 ≦30 15000
80 39.1 4 85 8.8 54 5.5 146.1 14.9
100 46 4.7 94.3 9.6 56 5.8 169.1 17.2
120 46 4.7 100 10.2 56 5.8 169.1 17.2
160 46 4.7 100 10.2 56 5.8 169.1 17.2
25 50 44.9 4.6 113 11.5 63 6.5 213.9 21.8
4800 3000 ≦30 15000
80 72.5 7.4 158 16.1 100 10.2 293.3 29.9
100 77.1 7.9 181 18.4 124 12.7 326.6 33.3
120 77.1 7.9 192 19.6 124 12.7 349.6 35.6
32 50 87.4 8.9 248 25.3 124 12.7 439 44.8
4000 3000 ≦30 15000
80 135.7 13.8 350 35.6 192 19.6 653 66.6
100 157.6 16.1 383 39.1 248 25.3 744 75.9
40 100 308 37.2 660 67 432 44 1232 126.7
4000 3000 ≦30 15000

Rated Parameter Table of LHG Series

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 Design
life
Grease Grease
Nm kgfm Nm kgfm Nm kgfm Nm kgfm
r/min r/min Arc    Sec Hour
14 50 7 0.7 23 2.3 9 0.9 46 4.7
14000 8500 ≦20 15000
80 10 1 30 3.1 14 1.4 61 6.2
100 10 1 36 3.7 14 1.4 70 7.2
17 50 21 2.1 44 4.5 34 3.4 91 9
10000 7300 ≦20 20000
80 29 2.9 56 5.7 35 3.6 113 12
100 31 3.2 70 7.2 51 5.2 143 15
20 50 33 3.3 73 7.4 44 4.5 127 13
10000 6500 ≦20 20000
80 44 4.5 96 9.8 61 6.2 165 17
100 52 5.3 107 10.9 64 6.5 191 20
120 52 5.3 113 11.5 64 6.5 191 20
160 52 5.3 120 12.2 64 6.5 191 20
25 50 51 5.2 127 13 72 7.3 242 25
7500 5600 ≦20 20000
80 82 8.4 178 18 113 12 332 34
100 87 8.9 204 21 140 14 369 38
120 87 8.9 217 22 140 14 395 40
32 50 99 10 281 29 140 14 497 51
7000 4800 ≦20 20000
80 153 16 395 40 217 22 738 75
100 178 18 433 44 281 29 841 86
40 100 345 35 738 75 484 49 1400 143
5600 4000 ≦20 20000

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.

Minimum Order: 1 sets

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