LHS(G) (High-torque) Standard Hat-type Strain Wave Gear-Leaderdrive

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LHS(G) (High-torque) Standard Hat-type Strain Wave Gear

Strain Wave Gears

LHS(G) (High-torque) Standard Hat-type Strain Wave Gear

Ref: LHS

The flexspline of the LHS standard hat-type flexspline strain wave gear has a at flanged barrel structure. A traditional key connection and cross slider coupling can be used to connect with the motor, and the wave generator can be configured for a large diameter through-hole or a solid input shaft structure. A support bearing and a fully sealed structure can be designed for the strain wave gear, making it useful for threading components through and attaching a bevel gear or timing belt transmission at the input end.

The LHS standard hat-type flexspline strain wave gear suits large hollow structures, efficiently solving internal power line problems. Telecom lines, air pipelines, and other intricate built-in drive device designs can be improved by integrating compact hat-type flexspline strain wave gears. It also has the characteristics of high cost-effectiveness, easy installation, high efficiency, low backlash, high positioning accuracy, and high rotation accuracy.

Leaderdrive hat-type harmonic drive system solutions are developed based on cutting-edge research by our R & D department. We can suit gears and component sets to specific applications based on user needs. Contact us to learn more about this service.

Ref: LHSG

The LHSG high-torque hat-type flexspline strain wave gear uses high-rigidity bearings and an overall strengthened design to increase the torque carrying capacity by more than 30% compared to the LHS harmonic speed reducer standard series. In addition to reducing the weight of machinery and equipment, the decrease in the weight of industrial robots can increase the robot's speed and payload weight.

Since its founding in 2003, Leaderdrive has been researching and developing innovative harmonic drive systems. Each gear or component set we produce demonstrates the latest developments in high-precision cost-efficient strain wave gearing. Contact us to discuss how our high-torque hat-type strain wave gears can upgrade your mechanical systems.

Product details

Parameters

Applications:

The LHS standard hat-type 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.

The LHSG high-torque hat-type 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 LHS standard hat-type 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.

The LHSG high-torque hat-type 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.

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LHS & LHS-CL Series Technical Parameters

Model	Reduction Ratio	Rated Torque N·m	Allowable Peak Torque at Start/Stop N·m	Allowable Max. Value of Ave. Load Torque N·m	Max. Allowable Peak Torque N·m	Max. Backlash arcsec	Max. Allowable Input Speed r/min	Rated Input Speed r/min
Model	Reduction Ratio	Rated Torque N·m	Allowable Peak Torque at Start/Stop N·m	Allowable Max. Value of Ave. Load Torque N·m	Max. Allowable Peak Torque N·m	Max. Backlash arcsec	Max. Allowable Input Speed r/min	Rated Input Speed r/min
14	30	4	9	6.8	17	≤10	8500	3500
	50	5.4	18	6.9	35
	80	7.8	23	11	47
	100	7.8	28	11	54
17	30	8.8	16	12	30	≤10	7300	3500
	50	16	34	26	70
	80	22	43	27	87
	100	24	54	39	110
	120	24	54	39	86
20	30	15	27	20	50	≤10	6500	3500
	50	25	56	34	98
	80	34	74	47	127
	100	40	82	49	147
	120	40	87	49	147
	160	40	92	49	147
25	30	27	50	38	95	≤10	5600	3500
	50	39	98	55	186
	80	63	137	87	255
	100	67	157	108	284
	120	67	167	108	304
	160	67	176	108	314
32	30	54	100	75	200	≤10	4800	3500
	50	76	216	108	382
	80	118	304	167	568
	100	137	333	216	647
	120	137	353	216	686
	160	137	372	216	686
40	50	137	402	196	686	≤10	4000	3000
	80	206	519	284	980
	100	265	738	372	1080
	120	294	617	451	1180
	160	294	647	451	1180
45	50	176	500	265	950	≤10	3800	3000
	80	313	706	390	1270
	100	353	755	500	1570
	120	402	823	620	1760
	160	402	882	630	1910
50	50	122	715	175	1430	≤10	3500	2500
	80	372	941	519	1860
	100	470	980	666	2060
	120	529	1080	813	2060
	160	529	1180	843	2450
58	50	176	1020	260	1960	≤10	3000	2200
	80	549	1480	770	2450
	100	696	1590	1060	3180
	120	745	1720	1190	3330
	160	745	1840	1210	3430

Model	Reduction Ratio	Starting Torque		Backdriving Torque		Ratcheting Torque	Hysteresis loss	Torsional Rigidity			Angle Transmission Accuracy	Buckling Torque
		Ⅲ	Ⅳ	Ⅲ	Ⅳ	Ratcheting Torque	Hysteresis loss	K₁	K₂	K₃	Angle Transmission Accuracy	Buckling Torque
		cN·m		N·m		N·m	arcsec	×10⁴ N·m/rad			arcsec	N·m
14	30	11	6.8	59	17	220	180	0.19	0.24	0.34	120	140
	50	8.8	5.7	5.3	3.4	88	120	0.34	0.47	0.57	90	140
	80	7.5	4.4	7.2	4.2	110	60	0.47	0.61	0.71	90	140
	100	6.9	3.7	8.2	4.5	84	60	0.47	0.61	0.71	90	140
17	30	30	11	17	5.9	100	180	0.34	0.44	0.67	90	270
	50	27	9.7	16	5.8	150	120	0.81	1.1	1.3	90	270
	80	25	7.2	24	6.9	200	60	1	1.4	1.6	90	270
	100	24	6.5	29	7.8	160	60	1	1.4	1.6	90	270
	120	24	6.2	34	8.9	120	60	1	1.4	1.6	90	270
20	30	43	19	23	10	170	180	0.57	0.71	1.1	90	440
	50	36	14	22	8.4	220	120	1.3	1.8	2.4	90	440
	80	33	11	31	10	350	60	1.6	2.5	2.9	60	440
	100	32	9.9	38	12	260	60	1.6	2.5	2.9	60	440
	120	31	9.3	45	13	240	60	1.6	2.5	2.9	60	440
	160	31	8.6	59	17	220	60	1.6	2.5	2.9	60	440
25	30	64	26	35	16	340	180	1	1.3	2.1	90	890
	50	56	22	34	13	450	120	2.5	3.4	4.4	90	890
	80	50	15	48	15	680	60	3.1	5.0	5.7	60	890
	100	49	14	59	17	500	60	3.1	5.0	5.7	60	890
	120	48	13	69	19	470	60	3.1	5.0	5.7	60	890
	160	47	12	90	23	450	60	3.1	5.0	5.7	60	890
32	30	112	63	57	31	720	180	2.4	3	4.9	90	1750
	50	85	41	51	25	980	120	5.4	7.8	9.8	90	1750
	80	74	29	70	28	1400	60	6.7	11	12	60	1750
	100	72	27	86	33	1000	60	6.7	11	12	60	1750
	120	68	24	97	34	980	60	6.7	11	12	60	1750
	160	67	23	128	43	980	60	6.7	11	12	60	1750
40	50	136	72	82	43	1800	120	10	14	18	60	3750
	80	117	52	112	50	2800	60	13	20	23	60	3750
	100	112	47	134	56	2100	60	13	20	23	60	3750
	120	110	44	158	63	1900	60	13	20	23	60	3750
	160	105	39	201	75	1800	60	13	20	23	60	3750
45	50	165	94	99	56	2700	120	15	20	26	60	5400
	80	138	68	133	65	3900	60	18	29	33	60	5400
	100	131	60	158	72	3100	60	18	29	33	60	5400
	120	126	55	182	79	2800	60	18	29	33	60	5400
	160	122	50	233	96	2600	60	18	29	33	60	5400
50	50	216	125	129	75	3700	120	20	28	34	60	7500
	80	179	88	172	85	5400	60	25	40	44	60	7500
	100	171	80	205	96	4100	60	25	40	44	60	7500
	120	165	74	237	106	3800	60	25	40	44	60	7500
	160	156	66	299	126	3600	60	25	40	44	60	7500
58	50	297	178	178	107	5800	120	31	44	54	60	11800
	80	244	125	234	120	8200	60	40	61	71	60	11800
	100	231	113	278	135	6400	60	40	61	71	60	11800
	120	223	105	322	151	5800	60	40	61	71	60	11800
	160	213	94	408	181	5600	60	40	61	71	60	11800

LHSG Series Technical Parameters

Model	Reduction Ratio	Rated Torque N·m	Allowable Peak Torque at Start/Stop N·m	Allowable Max. Value of Ave. Load Torque N·m	Max. Allowable Peak Torque N·m	Max. Backlash arcsec	Max. Allowable Input Speed r/min	Rated Input Speed r/min
Model	Reduction Ratio	Rated Torque N·m	Allowable Peak Torque at Start/Stop N·m	Allowable Max. Value of Ave. Load Torque N·m	Max. Allowable Peak Torque N·m	Max. Backlash arcsec	Max. Allowable Input Speed r/min	Rated Input Speed r/min
14	50	7	23	9	46	≤10	8500	3500
	80	10	30	14	61	≤10	8500	3500
	100	10	36	14	70	≤10	8500	3500
17	50	21	44	34	91	≤10	7300	3500
	80	29	56	35	113	≤10	7300	3500
	100	31	70	51	143	≤10	7300	3500
	120	31	70	51	112	≤10	7300	3500
20	50	33	73	44	127	≤10	6500	3500
	80	44	96	61	165	≤10	6500	3500
	100	52	107	64	191	≤10	6500	3500
	120	52	113	64	191	≤10	6500	3500
	160	52	120	64	191	≤10	6500	3500
25	50	51	127	72	242	≤10	5600	3500
	80	82	178	113	332	≤10	5600	3500
	100	87	204	140	369	≤10	5600	3500
	120	87	217	140	395	≤10	5600	3500
	160	87	229	140	408	≤10	5600	3500
32	50	99	281	140	497	≤10	4800	3500
	80	153	395	217	738	≤10	4800	3500
	100	178	433	281	841	≤10	4800	3500
	120	178	459	281	892	≤10	4800	3500
	160	178	484	281	892	≤10	4800	3500
40	50	178	523	255	892	≤10	4000	3000
	80	268	675	369	1270	≤10	4000	3000
	100	345	738	484	1400	≤10	4000	3000
	120	382	802	586	1530	≤10	4000	3000
	160	382	841	586	1530	≤10	4000	3000
45	50	229	650	345	1235	≤10	3800	3000
	80	407	918	507	1651	≤10	3800	3000
	100	459	982	650	2041	≤10	3800	3000
	120	523	1070	806	2288	≤10	3800	3000
	160	523	1147	819	2483	≤10	3800	3000
50	50	122	715	175	1430	≤10	3500	2500
	80	484	1223	675	2418	≤10	3500	2500
	100	611	1274	866	2678	≤10	3500	2500
	120	688	1404	1057	2678	≤10	3500	2500
	160	688	1534	1096	3185	≤10	3500	2500
58	80	714	1924	1001	3185	≤10	3000	2200
	100	905	2067	1378	4134	≤10	3000	2200
	120	969	2236	1547	4329	≤10	3000	2200
	160	969	2392	1573	4459	≤10	3000	2200

Model	Reduction Ratio	Starting Torque		Backdriving Torque		Ratcheting Torque	Hysteresis loss	Torsional Rigidity			Angle Transmission Accuracy	Buckling Torque
		Ⅲ	Ⅳ	Ⅲ	Ⅳ	Ratcheting Torque	Hysteresis loss	K₁	K₂	K₃	Angle Transmission Accuracy	Buckling Torque
		cN·m		N·m		N·m	arcsec	×10⁴ N·m/rad			arcsec	N·m
14	50	8.8	5.7	5.3	3.4	88	120	0.34	0.47	0.57	90	180
	80	7.5	4.4	7.2	4.2	110	60	0.47	0.61	0.71
	100	6.9	3.7	8.2	4.5	84	60	0.47	0.61	0.71
17	50	27	9.7	16	5.8	150	120	0.81	1.1	1.3	90	350
	80	25	7.2	24	6.9	200	60	1	1.4	1.6
	100	24	6.5	29	7.8	160
	120	24	6.2	34	8.9	120
20	50	36	14	22	8.4	220	120	1.3	1.8	2.4	60	590
	80	33	11	31	10	350	60	1.6	2.5	2.9
	100	32	9.9	38	12	260
	120	31	9.3	45	13	240
	160	31	8.6	59	17	220
25	50	56	22	34	13	450	120	2.5	3.4	4.4	60	1100
	80	50	15	48	15	680	60	3.1	5.0	5.7
	100	49	14	59	17	500
	120	48	13	69	19	470
	160	47	12	90	23	450
32	50	85	41	51	25	980	120	5.4	7.8	9.8	60	2400
	80	74	29	70	28	1400	60	6.7	11	12
	100	72	27	86	33	1000
	120	68	24	97	34	980
	160	67	23	128	43	980
40	50	136	72	82	43	1800	120	10	14	18	60	4400
	80	117	52	112	50	2800	60	13	20	23
	100	112	47	134	56	2100
	120	110	44	158	63	1900
	160	105	39	201	75	1800
45	50	165	94	99	56	2700	120	15	20	26	60	6300
	80	138	68	133	65	3900	60	18	29	33
	100	131	60	158	72	3100
	120	126	55	182	79	2800
	160	122	50	233	96	2600
50	80	179	88	172	85	5400	60	25	40	44	60	8600
	100	171	80	205	96	4100
	120	165	74	237	106	3800
	160	156	66	299	126	3600
58	80	244	125	234	120	8200	60	40	61	71	60	13400
	100	231	113	278	135	6400
	120	223	105	322	151	5800
	160	213	94	408	181	5600

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