LHSG High-Torque Hollow-Shaft Flexspline Strain Wave Gear

Applications:

The LHSG high-torque 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, telescopes, metal machine tools, photovoltaic equipment, and other fields.

Models:

The LHSG high-torque 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:

LHSG-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.

LHSG-II model: 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.

LHSG-III model: 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.

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

LHSG-CL-III model: It is a lightweight version of the LHSG-III. Through the optimization of structure and materials, the original performance parameters remain unchanged. The strain wave gear's weight is reduced to withstand faster speeds and larger loads after being used on industrial robots.

LHSG-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.

LHSG-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 Maximum Momentary Torque Nm	Maximum Input Speed r/min	Allowable Average Input Speed r/min	Back Lash Arc sec	Weight Kg	Design Life Hour
14	50 80 100	6.6 9.6 9.6	23 29 34	8.6 13.5 13.5	43 57 66	8000	3500	≤10 ≤10 ≤10	0.38	10000 15000 15000
17	50 80 100 120	19.8 27.5 30 30	42 53 66 66	32 33 49 49	86 108 134 107	7000	3500	≤10 ≤10 ≤10 ≤10	0.56	10000 15000 15000 15000
20	50 80 100 120 160	32 42 50 50 50	69 91 102 108 113	42 58 61 61 61	121 158 182 182 182	6000	3500	≤10 ≤10 ≤10 ≤10 ≤10	0.76	10000 15000 15000 15000 15000
25	50 80 100 120 160	48 78 84 84 84	121 169 194 207 217	68.5 107 133 133 133	230 315 351 376 388	5500	3500	≤10 ≤10 ≤10 ≤10 ≤10	1.24	10000 15000 15000 15000 15000
32	50 80 100 120 160	94 146 169 169 169	267 376 411 436 459	133 206 267 267 267	472 702 800 848 848	4500	3500	≤10 ≤10 ≤10 ≤10 ≤10	2.6	10000 15000 15000 15000 15000
40	50 80 100 120 160	169 255 328 363 363	497 641 702 762 800	242 351 460 557 557	847 1210 1334 1458 1458	4000	3000	≤10 ≤10 ≤10 ≤10 ≤10	5.0	10000 15000 15000 15000 15000
50*	80 100 120 160	459 580 654 654	1163 1211 1334 1458	642 823 1005 1042	2297 2545 2545 3025	3000	2500	≤10 ≤10 ≤10 ≤10	9.5	15000 15000 15000 15000
58*	80 100 120 160	678 860 921 921	1828 1964 2124 2722	951 1309 1470 1494	3026 3927 4113 4236	3000	2200	≤10 ≤10 ≤10 ≤10	13.6	15000 15000 15000 15000

*Consult factory

LHSG-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 Maximum Momentary Torque Nm	Maximum Input Speed r/min	Allowable Average Input Speed r/min	Back Lash Arc sec	Weight Kg	Design Life Hour
14	50 80 100	6.6 9.6 9.6	23 29 34	8.6 13.5 13.5	43 57 66	8000	3500	≤20 ≤20 ≤20	0.38	10000 15000 15000
17	50 80 100 120	19.8 27.5 30 30	42 53 66 66	32 33 49 49	86 108 134 107	7000	3500	≤20 ≤20 ≤20 ≤20	0.56	10000 15000 15000 15000
20	50 80 100 120 160	32 42 50 50 50	69 91 102 108 113	42 58 61 61 61	121 158 182 182 182	6000	3500	≤20 ≤20 ≤20 ≤20 ≤20	0.76	10000 15000 15000 15000 15000
25	50 80 100 120 160	48 78 84 84 84	121 169 194 207 217	68.5 107 133 133 133	230 315 351 376 388	5500	3500	≤20 ≤20 ≤20 ≤20 ≤20	1.24	10000 15000 15000 15000 15000
32	50 80 100 120 160	94 146 169 169 169	267 376 411 436 459	133 206 267 267 267	472 702 800 848 848	4500	3500	≤20 ≤20 ≤20 ≤20 ≤20	2.6	10000 15000 15000 15000 15000
40	50 80 100 120 160	169 255 328 363 363	497 641 702 762 800	242 351 460 557 557	847 1210 1334 1458 1458	4000	3000	≤20 ≤20 ≤20 ≤20 ≤20	5.0	10000 15000 15000 15000 15000
50*	80 100 120 160	459 580 654 654	1163 1211 1334 1458	642 823 1005 1042	2297 2545 2545 3025	3000	2500	≤10 ≤10 ≤10 ≤10	9.5	15000 15000 15000 15000
58*	80 100 120 160	678 860 921 921	1828 1964 2124 2722	951 1309 1470 1494	3026 3927 4113 4236	3000	2200	≤10 ≤10 ≤10 ≤10	13.6	15000 15000 15000 15000

*Consult factory

LHSG-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	50 80 100	6.6 9.6 9.6	23 29 34	8.6 13.5 13.5	43 57 66	8000	3500	≤20 ≤10 ≤10	≤77	0.72	10000 15000 15000
17	50 80 100 120	19.8 27.5 30 30	42 53 66 66	32 33 49 49	86 108 134 107	7000	3500	≤20 ≤10 ≤10 ≤10	≤92	1.0	10000 15000 15000 15000
20	50 80 100 120 160	32 42 50 50 50	69 91 102 108 113	42 58 61 61 61	121 158 182 182 182	6000	3500	≤20 ≤10 ≤10 ≤10 ≤10	≤136	1.38	10000 15000 15000 15000 15000
25	50 80 100 120 160	48 78 84 84 84	121 169 194 207 217	68.5 107 133 133 133	230 315 351 376 388	5500	3500	≤20 ≤10 ≤10 ≤10 ≤10	≤147	2.15	10000 15000 15000 15000 15000
32	50 80 100 120 160	94 146 169 169 169	267 376 411 436 459	133 206 267 267 267	472 702 800 848 848	4500	3500	≤20 ≤10 ≤10 ≤10 ≤10	≤154	4.3	10000 15000 15000 15000 15000
40	50 80 100 120 160	169 255 328 363 363	497 641 702 762 800	242 351 460 557 557	847 1210 1334 1458 1458	4000	3000	≤10 ≤10 ≤10 ≤10 ≤10	≤294	7.8	10000 15000 15000 15000 15000
50*	80 100 120 160	459 580 654 654	1163 1211 1334 1458	642 823 1005 1042	2297 2545 2545 3025	3000	2500	≤10 ≤10 ≤10 ≤10	≤373	14.5	15000 15000 15000 15000
58*	80 100 120 160	678 860 921 921	1828 1964 2124 2722	951 1309 1470 1494	3026 3927 4113 4236	3000	2200	≤10 ≤10 ≤10 ≤10	≤1300	20.0	15000 15000 15000 15000

*Consult factory

LHSG-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	50 80 100	6.6 9.6 9.6	23 29 34	8.6 13.5 13.5	43 57 66	8000	3500	≤10 ≤10 ≤10	≤77	0.56	10000 15000 15000
17	50 80 100 120	19.8 27.5 30 30	42 53 66 66	32 33 49 49	86 108 134 107	7000	3500	≤10 ≤10 ≤10 ≤10	≤92	0.80	10000 15000 15000 15000
20	50 80 100 120 160	32 42 50 50 50	69 91 102 108 113	42 58 61 61 61	121 158 182 182 182	6000	3500	≤10 ≤10 ≤10 ≤10 ≤10	≤136	1.09	10000 15000 15000 15000 15000
25	50 80 100 120 160	48 78 84 84 84	121 169 194 207 217	68.5 107 133 133 133	230 315 351 376 388	5500	3500	≤10 ≤10 ≤10 ≤10 ≤10	≤147	1.70	10000 15000 15000 15000 15000
32	50 80 100 120 160	94 146 169 169 169	267 376 411 436 459	133 206 267 267 267	472 702 800 848 848	4500	3500	≤10 ≤10 ≤10 ≤10 ≤10	≤154	3.5	10000 15000 15000 15000 15000
40	50 80 100 120 160	169 255 328 363 363	497 641 702 762 800	242 351 460 557 557	847 1210 1334 1458 1458	4000	3000	≤10 ≤10 ≤10 ≤10 ≤10	≤294	6.35	10000 15000 15000 15000 15000
50*	80 100 120 160	459 580 654 654	1163 1211 1334 1458	642 823 1005 1042	2297 2545 2545 3025	3000	2500	≤10 ≤10 ≤10 ≤10	≤373	12.0	15000 15000 15000 15000
58*	80 100 120 160	678 860 921 921	1828 1964 2124 2722	951 1309 1470 1494	3026 3927 4113 4236	3000	2200	≤10 ≤10 ≤10 ≤10	≤1300	16.5	15000 15000 15000 15000

*Consult factory

LHSG-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	50 80 100	6.6 9.6 9.6	23 29 34	8.6 13.5 13.5	43 57 66	8000	3500	≤10 ≤10 ≤10	≤26	0.65	10000 15000 15000
17	50 80 100 120	19.8 27.5 30 30	42 53 66 66	32 33 49 49	86 108 134 107	7000	3500	≤10 ≤10 ≤10 ≤10	≤32	0.92	10000 15000 15000 15000
20	50 80 100 120 160	32 42 50 50 50	69 91 102 108 113	42 58 61 61 61	121 158 182 182 182	6000	3500	≤10 ≤10 ≤10 ≤10 ≤10	≤58	1.36	10000 15000 15000 15000 15000
25	50 80 100 120 160	48 78 84 84 84	121 169 194 207 217	68.5 107 133 133 133	230 315 351 376 388	5500	3500	≤10 ≤10 ≤10 ≤10 ≤10	≤71	2.05	10000 15000 15000 15000 15000
32	50 80 100 120 160	94 146 169 169 169	267 376 411 436 459	133 206 267 267 267	472 702 800 848 848	4500	3500	≤10 ≤10 ≤10 ≤10 ≤10	≤114	4.35	10000 15000 15000 15000 15000
40	50 80 100 120 160	169 255 328 363 363	497 641 702 762 800	242 351 460 557 557	847 1210 1334 1458 1458	4000	3000	≤10 ≤10 ≤10 ≤10 ≤10	≤294	7.9	10000 15000 15000 15000 15000