LCS(G) (High-torque) Standard Cup-shaped Strain Wave Gear-Leaderdrive

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LCS(G) (High-torque) Standard Cup-shaped Strain Wave Gear

Strain Wave Gears

LCS(G) (High-torque) Standard Cup-shaped Strain Wave Gear

Ref: LCS

Standard cup-shaped flexspline strain wave gears are composed of four parts: a flexspline, a rigid circular spline, a wave generator, and roller bearings. Generally, the circular spline end is fixed, and the flexspline end is the output connecting with the motor. They are used as harmonic speed reducers in many mechanisms that perform rapid, precision motions.

The LCS cup-shaped flexspline strain wave gear is highly efficient and cost-effective. The simple structure with high rigidity and low backlash means that it can withstand high torque and obtain excellent positioning accuracy and rotation accuracy.

Leaderdrive is an innovative R & D and manufacturing company specialized in the development of strain wave gears and other gearbox and gearhead solutions. Contact us for more information on these products, including specifications, data, and warranties.

Ref: LCSG

The LCSG high-torque cup-shaped flexspline strain wave gear is the high-torque version of the standard LCG model. It comprises high-rigidity roller bearings and an overall strengthened design. The torque carrying capacity is 30% higher than that of the LCS series.

The LCSG high-torque cup-shaped flexspline strain wave gear has high torque capacity, a simple structure, high rigidity, low backlash, and long life. While bearing high torque, it can increase the operating speed to save installation space and reduce overall costs.

Leaderdrive strives to continuously develop our product range, ensuring that our high-torque harmonic drive systems always meet industry needs. We welcome any inquiries about our technology and industry solutions from interested parties.

Product details

Parameters

Applications:

Standard cup-shaped flexspline strain wave gears can be widely used in: robotics, humanoid robots, 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 LCSG high-torque cup-shaped flexspline strain wave gear can be widely used in robots, humanoid robots, semiconductor manufacturing equipment, printed circuit manufacturing equipment, metal machine tools, photovoltaic equipment, and other fields.

Models:

The LCS standard cup-shaped flexspline strain wave gear series is divided into two models according to the different connection forms of the input end and the wave generator cam:

LCS-I: The input shaft is directly matched with the wave generator's inner hole and connected by a flat key.

LCS-II: The input shaft is connected to the wave generator's inner hole through an Oldham coupling.

The LCSG high-torque cup-shaped flexspline strain wave gear series is divided into two models according to the different connection form of the input end and the wave generator cam:

LCSG-I: The input shaft is directly matched with the wave generator's inner hole and connected by a flat key.

LCSG-II: The input shaft is connected to the wave generator's inner hole through an Oldham coupling.

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

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LCS Series Technical Parameter

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	≤10	8500	3500
	80	7.8	23	11	47	≤10	8500	3500
	100	7.8	28	11	54	≤10	8500	3500
17	30	8.8	16	12	30	≤10	7300	3500
	50	16	34	26	70	≤10	7300	3500
	80	22	43	27	87	≤10	7300	3500
	100	24	54	39	108	≤10	7300	3500
	120	24	54	39	86	≤10	7300	3500
20	30	15	26	20	50	≤10	6500	3500
	50	25	56	34	98	≤10	6500	3500
	80	34	74	47	127	≤10	6500	3500
	100	40	82	49	147	≤10	6500	3500
	120	40	87	49	147	≤10	6500	3500
	160	40	92	49	147	≤10	6500	3500
25	30	27	50	38	95	≤10	5600	3500
	50	39	98	55	186	≤10	5600	3500
	80	63	137	87	255	≤10	5600	3500
	100	67	157	108	284	≤10	5600	3500
	120	67	167	108	304	≤10	5600	3500
	160	67	176	108	314	≤10	5600	3500
32	30	54	100	75	200	≤10	4800	3500
	50	76	216	108	382	≤10	4800	3500
	80	118	304	167	568	≤10	4800	3500
	100	137	333	216	647	≤10	4800	3500
	120	137	353	216	686	≤10	4800	3500
	160	137	372	216	686	≤10	4800	3500
40	50	137	402	196	686	≤10	4000	3000
	80	206	519	284	980	≤10	4000	3000
	100	265	568	372	1080	≤10	4000	3000
	120	294	617	451	1180	≤10	4000	3000
	160	294	647	451	1180	≤10	4000	3000
45	50	176	500	265	950	≤10	3800	3000
	80	313	706	390	1270	≤10	3800	3000
	100	353	755	500	1570	≤10	3800	3000
	120	402	823	620	1760	≤10	3800	3000
	160	402	882	630	1910	≤10	3800	3000
50	50	122	715	175	1430	≤10	3500	2500
	80	372	941	519	1860	≤10	3500	2500
	100	470	980	666	2060	≤10	3500	2500
	120	529	1080	813	2060	≤10	3500	2500
	160	529	1180	843	2450	≤10	3500	2500
58	50	176	1020	260	1960	≤10	3000	2200
	80	549	1480	770	2450	≤10	3000	2200
	100	696	1590	1060	3180	≤10	3000	2200
	120	745	1720	1190	3330	≤10	3000	2200
	160	745	1840	1210	3430	≤10	3000	2200

Model	Reduction Ratio	Starting Torque (cN·m)	Backdriving Torque (N·m)	Ratcheting Torque (N·m)	Hysteresis loss (arcsec)	Torsional Rigidity ×10⁴ N·m/rad			Angle Transmission Accuracy (arcsec)	Buckling Torque (N·m)
Model	Reduction Ratio	Starting Torque (cN·m)	Backdriving Torque (N·m)	Ratcheting Torque (N·m)	Hysteresis loss (arcsec)	K₁	K₂	K₃	Angle Transmission Accuracy (arcsec)	Buckling Torque (N·m)
14	30	6.4	2.4	59	180	0.19	0.24	0.34	120	190
	50	4.1	1.6	88	120	0.34	0.47	0.57	90	190
	80	2.8	1.6	110	60	0.47	0.61	0.71	90	190
	100	2.5	1.8	84	60	0.47	0.61	0.71	90	190
17	30	9.3	3.8	100	180	0.34	0.44	0.67	90	330
	50	6.1	3	150	120	0.81	1.1	1.3	90	330
	80	4	3	200	60	1	1.4	1.6	90	330
	100	3.4	3.3	160	60	1	1.4	1.6	90	330
	120	3.1	3.5	120	60	1	1.4	1.6	90	330
20	30	15	6.2	170	180	0.57	0.71	1.1	90	560
	50	7.8	4.7	220	120	1.3	1.8	2.3	90	560
	80	4.8	4.8	350	60	1.6	2.5	2.9	60	560
	100	4.3	5.1	260	60	1.6	2.5	2.9	60	560
	120	3.8	5.5	240	60	1.6	2.5	2.9	60	560
	160	3.3	6.4	220	60	1.6	2.5	2.9	60	560
40	30	25	11	340	180	1	0.3	2.1	90	4300
	80	35	33	2800	60	13	20	23	60	4300
	100	31	36	2100	60	13	20	23	60	4300
	120	28	39	1900	60	13	20	23	60	4300
	160	24	46	1800	60	13	20	23	60	4300
45	50	77	47	2700	120	15	20	26	60	5800
	80	49	48	3900	60	18	29	33	60	5800
	100	43	51	3100	60	18	29	33	60	5800
	120	39	55	2800	60	18	29	33	60	5800
	160	33	64	2600	60	18	29	33	60	5800
50	50	110	62	3700	120	20	28	34	60	8000
	80	66	63	5400	60	25	40	44	60	8000
	100	58	68	4100	60	25	40	44	60	8000
	120	52	73	3800	60	25	40	44	60	8000
	160	45	85	3600	60	25	40	44	60	8000
58	50	160	95	5800	120	31	44	54	60	12000
	80	98	96	8200	60	40	61	71	60	12000
	100	88	110	6400	60	40	61	71	60	12000
	120	80	110	5800	60	40	61	71	60	12000
	160	68	130	5600	60	40	61	71	60	12000

LCSG 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	58	≤10	8500	3500
	100	10	36	14	58	≤10	8500	3500
17	50	21	44	34	91	≤10	7300	3500
	80	29	56	35	109	≤10	7300	3500
	100	31	70	51	109	≤10	7300	3500
	120	31	70	51	109	≤10	7300	3500
20	50	33	73	44	127	≤10	6500	3500
	80	44	96	61	165	≤10	6500	3500
	100	40	82	49	147	≤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	842	≤10	4800	3500
	160	178	484	281	842	≤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	1510	≤10	4000	3000
	160	382	841	586	1510	≤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	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 (cN·m)	Backdriving Torque (N·m)	Ratcheting Torque (N·m)	Hysteresis loss (arcsec)	Torsional Rigidity ×10⁴ N·m/rad			Angle Transmission Accuracy (arcsec)	Buckling Torque (N·m)
Model	Reduction Ratio	Starting Torque (cN·m)	Backdriving Torque (N·m)	Ratcheting Torque (N·m)	Hysteresis loss (arcsec)	K₁	K₂	K₃	Angle Transmission Accuracy (arcsec)	Buckling Torque (N·m)
14	50	4.5	1.8	110	120	0.34	0.47	0.57	90	260
	80	3.1	1.8	140	60	0.47	0.61	0.71	90	260
	100	2.8	2	100	60	0.81	1.1	1.3	90	260
	120	2.8	2	100	60	0.81	1.1	1.3	90	260
17	50	6.7	3.3	190	120	0.81	1.1	1.3	90	500
	80	4.4	3.3	260	60	1	1.4	1.6	90	500
	100	3.7	3.6	200	60	1	1.4	1.6	90	500
	120	3.4	3.9	150	60	1.3	1.8	2.3	90	500
	160	3.4	3.9	150	60	1.3	1.8	2.3	90	500
20	50	8.6	5.2	280	120	1.3	1.8	2.3	60	800
	80	5.4	5.3	450	60	1.6	2.5	2.9	60	800
	100	4.7	5.6	330	60	1.6	2.5	2.9	60	800
	120	4.2	6.1	310	60	1.6	2.5	2.9	60	800
	160	3.6	7	280	60	1.6	2.5	2.9	60	800
	200	3.3	7	280	60	1.6	2.5	2.9	60	800
25	50	17	9.9	580	120	2.5	3.4	4.4	60	1700
	80	10	10	880	60	3.1	5.0	5.7	60	1700
	100	8.8	11	650	60	3.1	5.0	5.7	60	1700
	120	8	12	610	60	3.1	5.0	5.7	60	1700
	160	6.9	14	580	60	3.1	5.0	5.7	60	1700
32	50	34	20	1200	120	5.4	7.8	9.8	60	3500
	80	21	21	1800	60	6.7	11	12	60	3500
	100	20	22	1300	60	6.7	11	12	60	3500
	120	17	24	1200	60	6.7	11	12	60	3500
	160	15	29	1200	60	6.7	11	12	60	3500
40	50	61	36	2300	120	10	14	18	60	6700
	80	39	36	3600	60	13	20	23	60	6700
	100	34	40	2700	60	13	20	23	60	6700
	120	31	43	2400	60	13	20	23	60	6700
	160	26	51	2300	60	13	20	23	60	6700
45	50	85	52	3500	120	15	20	26	60	8900
	80	54	53	5000	60	18	29	33	60	8900
	100	47	56	4000	60	18	29	33	60	8900
	120	43	61	3600	60	18	29	33	60	8900
	160	36	70	3300	60	18	29	33	60	8900
50	80	73	69	7000	60	25	40	44	60	12200
	100	64	75	5300	60	25	40	44	60	12200
	120	57	80	4900	60	25	40	44	60	12200
	160	50	94	4600	60	25	40	44	60	12200
	200	45	94	4600	60	25	40	44	60	12200
58	80	108	106	10000	60	40	61	71	60	19000
	100	97	121	8300	60	40	61	71	60	19000
	120	88	121	7500	60	40	61	71	60	19000
	160	75	143	7200	60	40	61	71	60	19000
	200	68	143	7200	60	40	61	71	60	19000

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