LHT High Precision 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

Product Technology

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

Rated parameter table of LHT series hollow shaft gearboxes

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（Grease）	Permissible average input rotational speed （Grease）	Backlash	Design life
Model	Reduction ratio	Nm	kgfm	Nm	kgfm	Nm	kgfm	Nm	kgfm	r/min	r/min	Arc Sec	Hour
14	50	5.4	0.55	18	1.8	6.9	0.7	35	3.6	8500	3500	≤20	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	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	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	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	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	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

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

Drawing Download ofLHT Series Large Diameter Hollow Hole, Flat Shape Harmonic Gearbox

LHT Series

LHT-I

LHT-II

LHT-III

LHT-IV

LHT-V

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Description of LHT Standard Harmonic Gearbox

LHT-I/II Series Harmonic Drive Gearbox

The wave generator adopts an integrated structure, which makes the whole product structure more compact.
Two connection ways：Circular spline is fixed while flexspline as an outputs. Or flexspline is fixed while circular spline as an outputs
Motor can be connected with the gearbox directly. It is easy for installation.

LHT-III Series Harmonic Gearbox

There is a large-diameter hollow shaft hole in the middle of the wave generator cam
There are support bearings inside the harmonic gearbox. The harmonic reducer is designed with fully sealed structure. It is easy for installation
It is suitable for situation where the wire needs to be threaded from the center of the harmonic gearbox

LHT-IV Series Harmonic Drive

The wave generator cam comes with input shaft. It is suitable for different input forms.
There are support bearings inside the strain wave gear. The harmonic gearbox is designed with fully sealed structure. It is easy for installation
It is suitable for situation where bevel gears or timing belt drive need to be installed at the input end

LHT-V Series Strain Wave Gear

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

Applications of Harmonic Gearbox

1

Can you supply products with large quantity?

Yes, we can. Our annual production ability is more than 200,000pcs.
2

Do You Have Professional Technology Team?

Yes, we have more than 70 employees on the technical team. We can offer a professional technical solutions for customers' projects.
3

What's the General Delivery Time?

For standard product, the delivery time normally around 2-3 weeks. For customized products, normally aound 1-2 months.
4

Do You Produce The Harmonic Gearbox By Yourself?

Yes, we are top harmonic gearbox manuafacturer in China, the total factory is 30,000 square meters with over 400 employees, Laifual's R&D center is recognized as a "High-tech enterprise R&D center in China".
5

What's The Biggest Advantage Of Your Products?

Our product series is very complete, and the quality of the products is stable. The most important is the highest cost-effective in China.
6

What is your terms of payment ?

For order amount which is less than 1000USD, 100% in advance; more than 1000USD, 30% T/T in advance, balance before shippment.
7

What is your product warranty?

1 year warranty after delivery or working time of 2000 hours on condition that it is used in normal assembly state and lubrication condition recorded in product content.
8

How about after sales service?

Our sales team are online 24 hours a day to help you solve any problems.
9

Can You Offer OEM & ODM Services?

Yes, we can offer OEM and ODM services according to customers requirements.

Need A One-stop Solution?

We believe in delivering excellent customer service and we are dedicated to satisfying 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.