LHS Standard Hollow-Shaft Flexspline Strain Wave Gear

Applications:

The LHS standard hollow-shaft flexspline strain wave gear can be widely used in robots, humanoid robots, metal processing machinery, semiconductor manufacturing equipment, laser equipment, printed circuit manufacturing equipment, measurement and analysis test equipment, medical equipment, telescopes, optical testing equipment, metal machine tools, photovoltaic equipment, packaging equipment, aerospace, and other fields.

Models:

The LHS standard hollow-shaft flexspline strain wave gear series is divided into six models according to the connection form of the input end and the wave generator cam and other aspects:

LHS-I model: The input shaft is directly matched with the wave generator's inner hole and connected by a flat key. It can be used to connect the circular spline input and flexspline end output and vice versa.

LHS-II series: The input shaft is connected to the wave generator's inner hole through a cross slider coupling. It can be used to connect the circular spline input and flexspline end output and vice versa.

LHS-III series: There is a large-diameter hollow shaft hole in the middle of the wave generator cam, and a support bearing is designed inside the strain wave gear. It is very suitable for threading. The fully sealed structure is easy to install.

LHS-III-ST model: Based on the LHS-III strain wave gear, the original fully enclosed structure is simplified to a semi-enclosed structure, allowing users to have greater design freedom.

LHS-CL-III model: It is a lightweight version of the LHS-III. Through the optimization of structure and materials, the original performance parameters remain unchanged. The weight of the harmonic reducer itself is reduced to withstand faster speeds and larger loads after being used on industrial robots.

LHS-IV model: The wave generator cam comes with an input shaft, and the strain wave gear is designed with a supporting bearing inside and a fully sealed structure. It is very suitable for occasions where bevel gears or timing belt transmissions need to be installed at the input end.

If you want to know more about our products, you can download our Product Introduction Manual and 3D Model here.

LHS-I Series Parameter Table

Item Model No	Reduction Ratio	Rated Torque at 2000r/min Nm	Allowable Peak Torque at Start and Stop Nm	Allowable Average Torque Nm	Allowable Maximun Mementary Torque Nm	Maximun Input Speed r/min	Allowable Average Input Speed r/min	Back Lash Arc sec	Weight Kg	Design Life Hour
14	30 50 80 100	3.8 5.1 7.4 7.4	8.6 17 22 27	7.8 6.6 10.5 10.5	16 33 45 51	8000	3500	≤20 ≤20 ≤10 ≤10	0.38	10000 10000 15000 15000
17	30 50 80 100 120	8.4 15.2 21 23 23	15.2 32 41 51 51	11.5 25 26 37 37	29 66 83 104 82	7000	3500	≤20 ≤20 ≤10 ≤10 ≤10	0.56	10000 10000 15000 15000 15000
20	30 50 80 100 120 160	14 24 32 38 38 38	26 53 70 78 83 87	19 32 45 47 47 47	48 93 121 140 140 140	6000	3500	≤20 ≤20 ≤10 ≤10 ≤10 ≤10	0.76	10000 10000 15000 15000 15000 15000
25	30 50 80 100 120 160	26 37 60 64 64 64	48 93 130 149 159 167	36 52 83 103 103 103	90 177 242 270 289 298	5500	3500	≤20 ≤20 ≤10 ≤10 ≤10 ≤10	1.24	10000 10000 15000 15000 15000 15000
32	30 50 80 100 120 160	51 72 112 130 130 130	95 205 289 316 335 353	71 103 159 205 205 205	190 363 540 615 652 652	4500	3500	≤20 ≤20 ≤10 ≤10 ≤10 ≤10	2.6	10000 10000 15000 15000 15000 15000
40	50 80 100 120 160	130 196 252 279 279	382 493 540 586 615	186 270 353 428 428	652 931 1026 1121 1121	4000	3000	≤20 ≤10 ≤10 ≤10 ≤10	5.0	10000 15000 15000 15000 15000
50*	50 80 100 120 160	233 353 446 502 502	679 894 931 1026 1121	333 493 633 772 801	1358 1767 1957 1957 2328	3000	2500	≤20 ≤10 ≤10 ≤10 ≤10	9.5	10000 15000 15000 15000 15000
58*	80 100 120 160	522 661 708 708	1406 1511 1634 1748	732 1007 1131 1150	2328 3021 3164 3259	3000	2200	≤10 ≤10 ≤10 ≤10	13.6	15000 15000 15000 15000

*Consult factory

LHS-II Series Parameter Table

Item Model No	Reduction Ratio	Rated Torque at 2000r/min Nm	Allowable Peak Torque at Start and Stop Nm	Allowable Average Torque Nm	Allowable Maximun Mementary Torque Nm	Maximun Input Speed r/min	Allowable Average Input Speed r/min	Back Lash Arc sec	Weight Kg	Design Life Hour
14	30 50 80 100	3.8 5.1 7.4 7.4	8.6 17 22 27	7.8 6.6 10.5 10.5	16 33 45 51	8000	3500	≤20 ≤20 ≤20 ≤20	0.38	10000 10000 15000 15000
17	30 50 80 100 120	8.4 15.2 21 23 23	15.2 32 41 51 51	11.5 25 26 37 37	29 66 83 104 82	7000	3500	≤20 ≤20 ≤20 ≤20 ≤20	0.56	10000 10000 15000 15000 15000
20	30 50 80 100 120 160	14 24 32 38 38 38	26 53 70 78 83 87	19 32 45 47 47 47	48 93 121 140 140 140	6000	3500	≤20 ≤20 ≤20 ≤20 ≤20 ≤20	0.76	10000 10000 15000 15000 15000 15000
25	30 50 80 100 120 160	26 37 60 64 64 64	48 93 130 149 159 167	36 52 83 103 103 103	90 177 242 270 289 298	5500	3500	≤20 ≤20 ≤20 ≤20 ≤20 ≤20	1.24	10000 10000 15000 15000 15000 15000
32	30 50 80 100 120 160	51 72 112 130 130 130	95 205 289 316 335 353	71 103 159 205 205 205	190 363 540 615 652 652	4500	3500	≤20 ≤20 ≤20 ≤20 ≤20 ≤20	2.6	10000 10000 15000 15000 15000 15000
40	50 80 100 120 160	130 196 252 279 279	382 493 540 586 615	186 270 353 428 428	652 931 1026 1121 1121	4000	3000	≤20 ≤20 ≤20 ≤20 ≤20	5.0	10000 15000 15000 15000 15000
50*	50 80 100 120 160	233 353 446 502 502	679 894 931 1026 1121	333 493 633 772 801	1358 1767 1957 1957 2328	3000	2500	≤20 ≤20 ≤20 ≤20 ≤20	9.5	10000 15000 15000 15000 15000
58*	80 100 120 160	522 661 708 708	1406 1511 1634 1748	732 1007 1131 1150	2328 3021 3164 3259	3000	2200	≤10 ≤10 ≤10 ≤10	13.6	15000 15000 15000 15000

*Consult factory

LHS-III Series Parameter Table

Item Model No	Reduction Ratio	Rated Torque at 2000r/min Nm	Allowable Peak Torque at Start and Stop Nm	Allowable Average Torque Nm	Allowable Maximum Momentary Torque Nm	Maximum Input Speed r/min	Allowable Average Input Speed r/min	Back Lash Arc sec	With Maximum Tension N	Weight Kg	Design Life Hour
14	30 50 80 100	3.8 5.1 7.4 7.4	8.6 17 22 27	7.8 6.6 10.5 10.5	16 33 45 51	8000	3500	≤20 ≤20 ≤10 ≤10	≤77	0.72	10000 10000 15000 15000
17	30 50 80 100 120	8.4 15.2 21 23 23	15.2 32 41 51 51	11.5 25 26 37 37	29 66 83 104 82	7000	3500	≤20 ≤20 ≤10 ≤10 ≤10	≤92	1.0	10000 10000 15000 15000 15000
20	30 50 80 100 120 160	14 24 32 38 38 38	26 53 70 78 83 87	19 32 45 47 47 47	48 93 121 140 140 140	6000	3500	≤20 ≤20 ≤10 ≤10 ≤10 ≤10	≤136	1.38	10000 10000 15000 15000 15000 15000
25	30 50 80 100 120 160	26 37 60 64 64 64	48 93 130 149 159 167	36 52 83 103 103 103	90 177 242 270 289 298	5500	3500	≤20 ≤20 ≤10 ≤10 ≤10 ≤10	≤147	2.15	10000 10000 15000 15000 15000 15000
32	30 50 80 100 120 160	51 72 112 130 130 130	95 205 289 316 335 353	71 103 159 205 205 205	190 363 540 615 652 652	4500	3500	≤20 ≤20 ≤10 ≤10 ≤10 ≤10	≤154	4.3	10000 10000 15000 15000 15000 15000
40	50 80 100 120 160	130 196 252 279 279	382 493 540 586 615	186 270 353 428 428	652 931 1026 1121 1121	4000	3000	≤20 ≤10 ≤10 ≤10 ≤10	≤294	7.8	10000 15000 15000 15000 15000
50*	50 80 100 120 160	233 353 446 502 502	679 894 931 1026 1121	333 493 633 772 801	1358 1767 1957 1957 2328	3000	2500	≤20 ≤10 ≤10 ≤10 ≤10	≤373	14.5	10000 15000 15000 15000 15000
58*	80 100 120 160	678 860 921 921	1828 1964 2124 2272	951 1309 1470 1494	3026 3927 4113 4236	3000	2200	≤10 ≤10 ≤10 ≤10	≤1300	20.0	15000 15000 15000 15000

*Consult factory

LHS-CL-III Series Parameter Table

Item Model No	Reduction Ratio	Rated Torque at 2000r/min Nm	Allowable Peak Torque at Start and Stop Nm	Allowable Average Torque Nm	Allowable Maximum Momentary Torque Nm	Maximum Input Speed r/min	Allowable Average Input Speed r/min	Back Lash Arc sec	With Maximum Tension N	Weight Kg	Design Life Hour
14	30 50 80 100	3.8 5.1 7.4 7.4	8.6 17 22 27	7.8 6.6 10.5 10.5	16 33 45 51	8000	3500	≤20 ≤20 ≤10 ≤10	≤77	0.56	10000 10000 15000 15000
17	30 50 80 100 120	8.4 15.2 21 23 23	15.2 32 41 51 51	11.5 25 26 37 37	29 66 83 104 82	7000	3500	≤20 ≤20 ≤10 ≤10 ≤10	≤92	0.80	10000 10000 15000 15000 15000
20	30 50 80 100 120 160	14 24 32 38 38 38	26 53 70 78 83 87	19 32 45 47 47 47	48 93 121 140 140 140	6000	3500	≤20 ≤20 ≤10 ≤10 ≤10 ≤10	≤136	1.09	10000 10000 15000 15000 15000 15000
25	30 50 80 100 120 160	26 37 60 64 64 64	48 93 130 149 159 167	36 52 83 103 103 103	90 177 242 270 289 298	5500	3500	≤20 ≤20 ≤10 ≤10 ≤10 ≤10	≤147	1.70	10000 10000 15000 15000 15000 15000
32	30 50 80 100 120 160	51 72 112 130 130 130	95 205 289 316 335 353	71 103 159 205 205 205	190 363 540 615 652 652	4500	3500	≤20 ≤20 ≤10 ≤10 ≤10 ≤10	≤154	3.50	10000 10000 15000 15000 15000 15000
40	50 80 100 120 160	130 196 252 279 279	382 493 540 586 615	186 270 353 428 428	652 931 1026 1121 1121	4000	3000	≤20 ≤10 ≤10 ≤10 ≤10	≤294	6.35	10000 15000 15000 15000 15000
50*	50 80 100 120 160	233 353 446 502 502	679 894 931 1026 1121	333 493 633 772 801	1358 1767 1957 1957 2328	3000	2500	≤20 ≤10 ≤10 ≤10 ≤10	≤373	12.0	10000 15000 15000 15000 15000
58*	80 100 120 160	678 860 921 921	1828 1964 2124 2272	951 1309 1470 1494	3026 3927 4113 4236	3000	2200	≤10 ≤10 ≤10 ≤10	≤1300	16.5	15000 15000 15000 15000

*Consult factory

LHS-IV Series Parameter Table

Item Model No	Reduction Ratio	Rated Torque at 2000r/min Nm	Allowable Peak Torque at Start and Stop Nm	Allowable Average Torque Nm	Allowable Maximum Momentary Torque Nm	Maximum Input Speed r/min	Allowable Average Input Speed r/min	Back Lash Arc sec	With Maximum Tension N	Weight Kg	Design Life Hour
14	30 50 80 100	3.8 5.1 7.4 7.4	8.6 17 22 27	7.8 6.6 10.5 10.5	16 33 45 51	8000	3500	≤20 ≤20 ≤10 ≤10	≤26	0.65	10000 10000 15000 15000
17	30 50 80 100 120	8.4 15.2 21 23 23	15.2 32 41 51 51	11.5 25 26 37 37	29 66 83 104 82	7000	3500	≤20 ≤20 ≤10 ≤10 ≤10	≤32	0.92	10000 10000 15000 15000 15000
20	30 50 80 100 120 160	14 24 32 38 38 38	26 53 70 78 83 87	19 32 45 47 47 47	48 93 121 140 140 140	6000	3500	≤20 ≤20 ≤10 ≤10 ≤10 ≤10	≤58	1.36	10000 10000 15000 15000 15000 15000
25	30 50 80 100 120 160	26 37 60 64 64 64	48 93 130 149 159 167	36 52 83 103 103 103	90 177 242 270 289 298	5500	3500	≤20 ≤20 ≤10 ≤10 ≤10 ≤10	≤71	2.05	10000 10000 15000 15000 15000 15000
32	30 50 80 100 120 160	51 72 112 130 130 130	95 205 289 316 335 353	71 103 159 205 205 205	190 363 540 615 652 652	4500	3500	≤20 ≤20 ≤10 ≤10 ≤10 ≤10	≤114	4.35	10000 10000 15000 15000 15000 15000
40	50 80 100 120 160	130 196 252 279 279	382 493 540 586 615	186 270 353 428 428	652 931 1026 1121 1121	4000	3000	≤20 ≤10 ≤10 ≤10 ≤10	≤294	6.45	10000 15000 15000 15000 15000