CSG/CSF Harmonic Drive Gearbox 6 Powerful Benefits

CSG / CSF Series Harmonic Drive – High-Torque, Zero-Backlash, Coaxial Precision Gear Solutions

Product Overview

The combination type CSG/CSF series harmonic drive gearbox is engineered to meet the rapid technological evolution in robotics, industrial automation, semiconductor processing, smart manufacturing, aerospace, and high-precision machine platforms. With a compact and simplified design, high torque capacity, exceptional torsional stiffness, and true zero backlash, this series provides unmatched accuracy and long-term durability.

Built around a modular component structure, the CSG/CSF series harmonic drive gearbox integrates a high-rigidity cross-roller bearing directly into the output section, enabling stable load support without requiring an external bearing mechanism. Whether it’s for articulated robots, collaborative robots, precision rotary axes, or servo-driven automation modules, the CSG/CSF series harmonic drive gearbox delivers industry-leading performance in a compact footprint.

Automation technologies today demand higher function density, smaller footprints, higher torque density, improved rigidity, and faster cycle speeds. The CSG/CSF series harmonic drive gearbox was created to address these needs, providing a full range of specifications so OEMs and system integrators can select the optimal configuration for their motion platform.

The series is fully compatible with major global servo motor brands such as:

This broad compatibility ensures easy integration into industrial robots, CNC automation units, medical systems, and smart factory equipment.

Key Features

Compact & Simplified Design
Using harmonic strain-wave gearing principles, the drive achieves extremely high reduction ratios in a compact envelope, allowing slimmer mechanical layouts.
High Torque Capacity
The CSG series harmonic drive gearbox offers a 30% torque increase, providing industry-leading torque density.
High Rigidity
Internal cross-roller bearings supply exceptional stiffness, improving responsiveness and precision during acceleration, deceleration, and load reversal.
Zero Backlash (True Zero Lost Motion)
Because of its flexible spline deformation principle, the CSG/CSF series harmonic drive gearbox features absolute zero backlash, even under load, guaranteeing stable accuracy over its full lifespan.
Outstanding Positioning & Rotational Accuracy
The drive minimizes angular transmission error, providing tight control for advanced robotic and automation systems.
Coaxial Input/Output Configuration
A clean, symmetrical, coaxial design simplifies machine construction and enhances shaft alignment.

Size	Ratio	Rated Torque @2000rpm (Nm)	Rated Torque @2000rpm (kgf·m)	Allowable Peak Torque at Start/Stop (Nm)	Allowable Peak Torque at Start/Stop (kgf·m)	Allowable Average Load Torque (Nm)	Allowable Average Load Torque (kgf·m)	Maximum Instantaneous Allowable Torque (Nm)	Maximum Instantaneous Allowable Torque (kgf·m)	Max Input Speed – Oil (rpm)	Max Input Speed – Grease (rpm)	Allowable Average Input Speed – Oil (rpm)	Allowable Average Input Speed – Grease (rpm)	Moment of Inertia (×10⁻⁴ kg·m²)	Moment of Inertia (×10⁻⁴ kgf·m·s²)	6500	3500	0.033	0.034
14	50	7	0.7	23	2.3	9	0.9	46	4.7	14000	8500	6500	3500	0.033	0.034
14	80	10	1.0	30	3.1	14	1.4	61	6.2	14000	8500	6500	3500	0.033	0.034
14	100	10	1.0	36	3.7	14	1.4	70	7.2	14000	8500	6500	3500	0.033	0.034
17	50	21	2.1	44	4.5	34	3.4	91	9.3	10000	7300	6500	3500	0.079	0.081
17	80	29	2.9	56	5.7	35	3.6	113	11.5	10000	7300	6500	3500	0.079	0.081
17	100	31	3.2	70	7.2	51	5.2	143	14.6	10000	7300	6500	3500	0.079	0.081
17	120	31	3.2	70	7.2	51	5.2	112	11.4	10000	7300	6500	3500	0.079	0.081
20	50	33	3.3	73	7.4	44	4.5	127	12.9	10000	6500	6500	3500	0.193	0.197
20	80	44	4.5	96	9.8	61	6.2	165	16.8	10000	6500	6500	3500	0.193	0.197
20	100	52	5.3	107	10.9	64	6.5	191	19.5	10000	6500	6500	3500	0.193	0.197
20	120	52	5.3	113	11.5	64	6.5	191	19.5	10000	6500	6500	3500	0.193	0.197
20	160	52	5.3	120	12.2	64	6.5	191	19.5	10000	6500	6500	3500	0.193	0.197
25	50	51	5.2	127	13.0	72	7.3	242	24.7	7500	5600	5600	3500	0.413	0.421
25	80	82	8.4	178	18.2	113	11.5	332	33.9	7500	5600	5600	3500	0.413	0.421
25	100	87	8.9	204	20.8	140	14.3	369	37.6	7500	5600	5600	3500	0.413	0.421
25	120	87	8.9	217	22.1	140	14.3	395	40.3	7500	5600	5600	3500	0.413	0.421
25	160	87	8.9	229	23.4	140	14.3	408	41.6	7500	5600	5600	3500	0.413	0.421
32	50	99	10.1	281	28.7	140	14.3	497	50.7	7000	4800	4600	3500	1.69	1.72
32	80	153	15.6	395	40.3	217	22.1	738	75.3	7000	4800	4600	3500	1.69	1.72
32	100	178	18.2	433	44.2	281	28.7	841	85.8	7000	4800	4600	3500	1.69	1.72
32	120	178	18.2	459	46.8	281	28.7	892	91.0	7000	4800	4600	3500	1.69	1.72
32	160	178	18.2	484	49.4	281	28.7	892	91.0	7000	4800	4600	3500	1.69	1.72
40	50	178	18.2	523	53.4	255	26.0	892	91.0	5600	4000	3600	3000	4.5	4.59
40	80	268	27.3	675	68.9	369	37.6	1270	129.6	5600	4000	3600	3000	4.5	4.59
40	100	345	35.2	738	75.3	484	49.4	1400	142.9	5600	4000	3600	3000	4.5	4.59
40	120	382	39.0	802	81.8	586	59.8	1530	156.1	5600	4000	3600	3000	4.5	4.59
40	160	382	39.0	841	85.8	586	59.8	1530	156.1	5600	4000	3600	3000	4.5	4.59
45	50	229	23.4	650	66.3	345	35.2	1235	126.0	5000	3800	3300	3000	8.68	8.86
45	80	407	41.5	918	93.7	507	51.7	1651	168.4	5000	3800	3300	3000	8.68	8.86
45	100	459	46.8	982	100.2	650	66.3	2041	208.3	5000	3800	3300	3000	8.68	8.86
45	120	523	53.4	1070	109.2	806	82.2	2288	233.5	5000	3800	3300	3000	8.68	8.86
45	160	523	53.4	1147	117.0	819	83.6	2483	253.4	5000	3800	3300	3000	8.68	8.86
50	80	484	49.4	1223	124.8	675	68.9	2418	246.8	4500	3500	3000	2500	12.5	12.8
50	100	611	62.3	1274	130.0	866	88.4	2678	273.3	4500	3500	3000	2500	12.5	12.8
50	120	688	70.2	1404	143.3	1057	107.9	2678	273.3	4500	3500	3000	2500	12.5	12.8
50	160	688	70.2	1534	156.5	1096	111.8	3185	325.0	4500	3500	3000	2500	12.5	12.8
58	80	714	72.8	1924	196.3	1001	102.1	3185	325.0	4000	3000	2700	2200	27.3	27.9
58	100	905	92.3	2067	210.9	1378	140.6	4134	421.8	4000	3000	2700	2200	27.3	27.9
58	120	969	98.8	2236	228.2	1547	157.9	4329	441.7	4000	3000	2700	2200	27.3	27.9
58	160	969	98.8	2392	244.1	1573	160.5	4459	455.0	4000	3000	2700	2200	27.3	27.9
65	80	969	98.8	2743	279.9	1352	138.0	4836	493.5	3500	2800	2400	1900	46.8	47.8
65	100	1236	126.1	2990	305.0	1976	201.6	6175	630.0	3500	2800	2400	1900	46.8	47.8
65	120	1236	126.1	3263	332.9	2041	208.2	6175	630.0	3500	2800	2400	1900	46.8	47.8
65	160	1236	126.1	3419	348.8	2041	208.2	6175	630.0	3500	2800	2400	1900	46.8	47.8

Size	Ratio	Rated Torque @2000rpm (Nm)	Rated Torque @2000rpm (kgf·m)	Allowable Peak Torque at Start/Stop (Nm)	Allowable Peak Torque at Start/Stop (kgf·m)	Allowable Average Load Torque (Nm)	Allowable Average Load Torque (kgf·m)	Maximum Instantaneous Allowable Torque (Nm)	Maximum Instantaneous Allowable Torque (kgf·m)	Max Input Speed – Oil (rpm)	Max Input Speed – Grease (rpm)	Allowable Average Input Speed – Oil (rpm)	Allowable Average Input Speed – Grease (rpm)	Moment of Inertia (×10⁻⁴ kg·m²)	Moment of Inertia (×10⁻⁴ kgf·m·s²)
14	30	4	0.41	9	0.92	6.8	0.69	17	1.7	14000	8500	6500	3500	0.033	0.034
14	50	5.4	0.55	18	1.8	6.9	0.7	35	3.6	14000	8500	6500	3500	0.033	0.034
14	80	7.8	0.8	23	2.4	11	1.1	47	4.8	14000	8500	6500	3500	0.033	0.034
14	100	7.8	0.8	28	2.9	11	1.1	54	5.5	14000	8500	6500	3500	0.033	0.034
17	30	8.8	0.9	16	1.6	12	1.2	30	3.1	10000	7300	6500	3500	0.079	0.081
17	50	16	1.6	34	3.5	26	2.6	70	7.1	10000	7300	6500	3500	0.079	0.081
17	80	22	2.2	43	4.4	27	2.7	87	8.9	10000	7300	6500	3500	0.079	0.081
17	100	24	2.4	54	5.5	39	4.0	108	11.0	10000	7300	6500	3500	0.079	0.081
17	120	24	2.4	54	5.5	39	4.0	86	8.8	10000	7300	6500	3500	0.079	0.081
20	30	15	1.5	27	2.8	20	2.0	50	5.1	10000	6500	6500	3500	0.193	0.197
20	50	25	2.5	56	5.7	34	3.5	98	10.0	10000	6500	6500	3500	0.193	0.197
20	80	34	3.5	74	7.5	47	4.8	127	13.0	10000	6500	6500	3500	0.193	0.197
20	100	40	4.1	82	8.4	49	5.0	147	15.0	10000	6500	6500	3500	0.193	0.197
20	120	40	4.1	87	8.9	49	5.0	147	15.0	10000	6500	6500	3500	0.193	0.197
20	160	40	4.1	92	9.4	49	5.0	147	15.0	10000	6500	6500	3500	0.193	0.197
25	30	27	2.8	50	5.1	38	3.9	95	9.7	7500	5600	5600	3500	0.413	0.421
25	50	39	4.0	98	10.0	55	5.6	186	19.0	7500	5600	5600	3500	0.413	0.421
25	80	63	6.4	137	14.0	87	8.9	255	26.0	7500	5600	5600	3500	0.413	0.421
25	100	67	6.8	157	16.0	108	11.0	284	29.0	7500	5600	5600	3500	0.413	0.421
25	120	67	6.8	167	17.0	108	11.0	304	31.0	7500	5600	5600	3500	0.413	0.421
25	160	67	6.8	176	18.0	108	11.0	314	32.0	7500	5600	5600	3500	0.413	0.421
32	30	54	5.5	100	10.0	75	7.7	200	20.0	7000	4800	4600	3500	1.69	1.72
32	50	76	7.8	216	22.0	108	11.0	382	39.0	7000	4800	4600	3500	1.69	1.72
32	80	118	12.0	304	31.0	167	17.0	568	58.0	7000	4800	4600	3500	1.69	1.72
32	100	137	14.0	333	34.0	216	22.0	647	66.0	7000	4800	4600	3500	1.69	1.72
32	120	137	14.0	353	36.0	216	22.0	686	70.0	7000	4800	4600	3500	1.69	1.72
32	160	137	14.0	372	38.0	216	22.0	686	70.0	7000	4800	4600	3500	1.69	1.72
40	50	137	14.0	402	41.0	196	20.0	686	70.0	5600	4000	3600	3000	4.5	4.59
40	80	206	21.0	519	53.0	284	29.0	980	100.0	5600	4000	3600	3000	4.5	4.59
40	100	265	27.0	568	58.0	372	38.0	1080	110.0	5600	4000	3600	3000	4.5	4.59
40	120	294	30.0	617	63.0	451	46.0	1180	120.0	5600	4000	3600	3000	4.5	4.59
40	160	294	30.0	647	66.0	451	46.0	1180	120.0	5600	4000	3600	3000	4.5	4.59
45	50	176	18.0	500	51.0	265	27.0	950	97.0	5000	3800	3300	3000	8.68	8.86
45	80	313	32.0	706	72.0	390	40.0	1270	130.0	5000	3800	3300	3000	8.68	8.86
45	100	353	36.0	755	77.0	500	51.0	1570	160.0	5000	3800	3300	3000	8.68	8.86
45	120	402	41.0	823	84.0	620	63.0	1760	180.0	5000	3800	3300	3000	8.68	8.86
45	160	402	41.0	882	90.0	630	64.0	1910	195.0	5000	3800	3300	3000	8.68	8.86
50	50	122	12.0	715	73.0	175	18.0	1430	146.0	4500	3500	3000	2500	12.5	12.8
50	80	372	38.0	941	96.0	519	53.0	1860	190.0	4500	3500	3000	2500	12.5	12.8
50	100	470	48.0	980	100.0	666	68.0	2060	210.0	4500	3500	3000	2500	12.5	12.8
50	120	529	54.0	1080	110.0	813	83.0	2060	210.0	4500	3500	3000	2500	12.5	12.8
50	160	529	54.0	1180	120.0	843	86.0	2450	250.0	4500	3500	3000	2500	12.5	12.8
58	50	176	18.0	1020	104.0	260	27.0	1960	200.0	4000	3000	2700	2200	27.3	27.9
58	80	549	56.0	1480	151.0	770	79.0	2450	250.0	4000	3000	2700	2200	27.3	27.9
58	100	696	71.0	1590	162.0	1060	108.0	3180	325.0	4000	3000	2700	2200	27.3	27.9
58	120	745	76.0	1720	176.0	1190	121.0	3330	340.0	4000	3000	2700	2200	27.3	27.9
58	160	745	76.0	1840	188.0	1210	123.0	3430	350.0	4000	3000	2700	2200	27.3	27.9
65	50	245	25.0	1420	145.0	360	37.0	2830	289.0	3500	2800	2400	1900	46.8	47.8
65	80	745	76.0	2110	215.0	1040	106.0	3720	380.0	3500	2800	2400	1900	46.8	47.8
65	100	951	97.0	2300	235.0	1520	155.0	4750	485.0	3500	2800	2400	1900	46.8	47.8
65	120	951	97.0	2510	256.0	1570	160.0	4750	485.0	3500	2800	2400	1900	46.8	47.8
65	160	951	97.0	2630	268.0	1570	160.0	4750	485.0	3500	2800	2400	1900	46.8	47.8

Ratio	Specification	Unit	14	17	20	25	32	40-65
30	Standard	×10^-4 rad	5.8	4.4	4.4	4.4	4.4	–
30	Standard	arc min	1.5	1.5	1.5	1.5	1.5	–
30	Special	×10^-4 rad	–	–	2.9	2.9	2.9	–
30	Special	arc min	–	–	1.0	1.0	1.0	–
50 and above	Standard	×10^-4 rad	4.4	4.4	2.9	2.9	2.9	2.9
50 and above	Standard	arc min	1.5	1.5	1.0	1.0	1.0	1.0
50 and above	Special	×10^-4 rad	2.9	2.9	1.5	1.5	1.5	1.5
50 and above	Special	arc min	1.0	1.0	0.5	0.5	0.5	0.5

Ratio	Size	×10^-4 rad	arc min
30	14	8.7	3.0
30	17	8.7	3.0
30	20	8.7	3.0
30	25	8.7	3.0
30	32	8.7	3.0
30	40 and above	–	–
50	14	5.8	2.0
50	17	5.8	2.0
50	20	5.8	2.0
50	25	5.8	2.0
50	32	5.8	2.0
50	40 and above	5.8	2.0
80 and above	14	2.9	1.0
80 and above	17	2.9	1.0
80 and above	20	2.9	1.0
80 and above	25	2.9	1.0
80 and above	32	2.9	1.0
80 and above	40 and above	2.9	1.0

Ratio	Size	×10^-4 rad	arc sec
30	14	29.1	60
30	17	16.0	33
30	20	13.6	28
30	25	13.6	28
30	32	11.2	23
30	40	–	–
30	45	–	–
30	50	–	–
30	58	–	–
30	65	–	–
50	14	17.5	36
50	17	9.7	20
50	20	8.2	17
50	25	8.2	17
50	32	6.8	14
50	40	6.8	14
50	45	5.8	12
50	50	5.8	12
50	58	4.8	10
50	65	4.8	10
80	14	11.2	23
80	17	6.3	13
80	20	5.3	11
80	25	5.3	11
80	32	4.4	9
80	40	4.4	9
80	45	3.9	8
80	50	3.9	8
80	58	2.9	6
80	65	2.9	6
100	14	8.7	18
100	17	4.8	10
100	20	4.4	9
100	25	4.4	9
100	32	3.4	7
100	40	3.4	7
100	45	2.9	6
100	50	2.9	6
100	58	2.4	5
100	65	2.4	5
120	14	–	–
120	17	3.9	8
120	20	3.9	8
120	25	3.9	8
120	32	2.9	6
120	40	2.9	6
120	45	2.4	5
120	50	2.4	5
120	58	1.9	4
120	65	1.9	4
160	14	–	–
160	17	–	–
160	20	2.9	6
160	25	2.9	6
160	32	2.4	5
160	40	2.4	5
160	45	1.9	4
160	50	1.9	4
160	58	1.5	3
160	65	1.5	3

Parameter	Size	14	17	20	25	32	40	45	50	58	65
T1 (Nm)	Nm	2.0	3.9	7.0	14	29	54	76	108	168	235
T1 (kgf·m)	kgf·m	0.20	0.40	0.70	1.4	3.0	5.5	7.8	11	17	24
T2 (Nm)	Nm	6.9	12	25	48	108	196	275	382	598	843
T2 (kgf·m)	kgf·m	0.7	1.2	2.5	4.9	11	20	28	39	61	86
K1 (30:1) (×10^6 Nm/rad)	×10^6 Nm/rad	0.19	0.34	0.57	1.0	2.4	–	–	–	–	–
K1 (30:1) (kgf·m/arc min)	kgf·m/arc min	0.056	0.10	0.17	0.30	0.70	–	–	–	–	–
K2 (30:1) (×10^6 Nm/rad)	×10^6 Nm/rad	0.24	0.44	0.71	1.3	3.0	–	–	–	–	–
K2 (30:1) (kgf·m/arc min)	kgf·m/arc min	0.07	0.13	0.21	0.40	0.89	–	–	–	–	–
K3 (30:1) (×10^6 Nm/rad)	×10^6 Nm/rad	0.34	0.67	1.1	2.1	4.9	–	–	–	–	–
K3 (30:1) (kgf·m/arc min)	kgf·m/arc min	0.10	0.20	0.32	0.62	1.5	–	–	–	–	–
θ1 (30:1) (×10^-4 rad)	×10^-4 rad	10.5	11.5	12.3	14	12.1	–	–	–	–	–
θ1 (30:1) (arc min)	arc min	3.6	4.0	4.1	4.7	4.3	–	–	–	–	–
θ2 (30:1) (×10^-4 rad)	×10^-4 rad	31	30	38	40	38	–	–	–	–	–
θ2 (30:1) (arc min)	arc min	10.7	10.2	12.7	13.4	13.3	–	–	–	–	–
K1 (50:1) (×10^6 Nm/rad)	×10^6 Nm/rad	0.34	0.81	1.3	2.5	5.4	10	15	20	31	44
K1 (50:1) (kgf·m/arc min)	kgf·m/arc min	0.1	0.24	0.38	0.74	1.6	3.0	4.3	5.9	9.3	13
K2 (50:1) (×10^6 Nm/rad)	×10^6 Nm/rad	0.47	1.1	1.8	3.4	7.8	14	20	28	44	61
K2 (50:1) (kgf·m/arc min)	kgf·m/arc min	0.14	0.32	0.52	1.0	2.3	4.2	6.0	8.2	13	18
K3 (50:1) (×10^6 Nm/rad)	×10^6 Nm/rad	0.57	1.3	2.3	4.4	9.8	18	26	34	54	78
K3 (50:1) (kgf·m/arc min)	kgf·m/arc min	0.17	0.4	0.67	1.3	2.9	5.3	7.6	10	16	23
θ1 (50:1) (×10^-4 rad)	×10^-4 rad	5.8	4.9	5.2	5.5	5.5	5.2	5.5	5.2	5.2	5.2
θ1 (50:1) (arc min)	arc min	2.0	1.7	1.8	1.9	1.9	1.8	1.8	1.9	1.8	1.8
θ2 (50:1) (×10^-4 rad)	×10^-4 rad	16	12	15.4	15.7	15.7	15.4	15.1	15.4	15.1	15.1
θ2 (50:1) (arc min)	arc min	5.6	4.2	5.3	5.4	5.4	5.3	5.2	5.3	5.2	5.2
K1 (80:1 and above) (×10^6 Nm/rad)	×10^6 Nm/rad	0.47	1.0	1.6	3.1	6.7	13	18	25	40	54
K1 (80:1 and above) (kgf·m/arc min)	kgf·m/arc min	0.14	0.30	0.47	0.92	2.0	3.8	5.4	7.4	12	16
K2 (80:1 and above) (×10^6 Nm/rad)	×10^6 Nm/rad	0.61	1.4	2.5	5.0	11	20	29	40	61	88
K2 (80:1 and above) (kgf·m/arc min)	kgf·m/arc min	0.18	0.40	0.75	1.5	3.2	6.0	8.5	12	18	26
K3 (80:1 and above) (×10^6 Nm/rad)	×10^6 Nm/rad	0.71	1.6	2.9	5.7	12	23	33	44	71	98
K3 (80:1 and above) (kgf·m/arc min)	kgf·m/arc min	0.21	0.46	0.85	1.7	3.7	6.8	9.7	13	21	29
θ1 (80:1 and above) (×10^-4 rad)	×10^-4 rad	4.1	3.9	4.4	4.4	4.4	4.1	4.1	4.4	4.1	4.4
θ1 (80:1 and above) (arc min)	arc min	1.4	1.3	1.5	1.5	1.5	1.4	1.4	1.5	1.4	1.5
θ2 (80:1 and above) (×10^-4 rad)	×10^-4 rad	12	9.7	11.3	11.1	11.6	11.1	11.1	11.1	11.1	11.3
θ2 (80:1 and above) (arc min)	arc min	4.2	3.3	3.9	3.8	4.0	3.8	3.8	3.8	3.8	3.9

Reduction Ratio	14	17	20	25	32	40	45	50	58	65
50	4.5	6.7	8.6	17	34	61	85	–	–	–
80	3.1	4.4	5.4	10	21	39	54	73	108	154
100	2.8	3.7	4.7	8.8	20	34	47	64	97	132
120	–	3.4	4.2	8.0	17	31	43	57	88	121
160	–	–	3.6	6.9	15	26	36	50	75	102

Reduction Ratio	14	17	20	25	32	40	45	50	58	65
30	6.4	9.3	15	25	54	–	–	–	–	–
50	4.1	6.1	7.8	15	31	55	77	110	160	220
80	2.8	4.0	4.9	9.2	19	35	49	66	98	140
100	2.5	3.4	4.3	8.0	18	31	43	58	88	120
120	–	3.1	3.8	7.3	15	28	39	52	80	110
160	–	–	3.3	6.3	14	24	33	45	68	93

Reduction Ratio	14	17	20	25	32	40	45	50	58	65
50	1.8	3.3	5.2	9.9	20	36	52	–	–	–
80	1.8	3.3	5.3	10	21	36	53	69	106	154
100	2.0	3.6	5.6	11	22	40	56	75	121	165
120	–	3.9	6.1	12	24	43	61	80	121	176
160	–	–	7.0	14	29	51	70	94	143	198

Reduction Ratio	14	17	20	25	32	40	45	50	58	65
30	2.4	3.8	6.2	11	23	–	–	–	–	–
50	1.6	3.0	4.7	9.0	18	33	47	62	95	130
80	1.6	3.0	4.8	9.1	19	33	48	63	96	140
100	1.8	3.3	5.1	9.8	20	36	51	68	110	150
120	–	3.5	5.5	11	22	39	55	73	110	160
160	–	–	6.4	13	26	46	64	85	130	180

Reduction Ratio	Model 14	Model 17	Model 20	Model 25	Model 32	Model 40	Model 45	Model 50	Model 58	Model 65
50	110	190	280	580	1200	2300	3500	—	—	—
80	140	260	450	880	1800	3600	5000	7000	10000	14000
100	100	200	330	650	1300	2700	4000	5300	8300	12000
120	—	150	310	610	1200	2400	3600	4900	7500	10000
160	—	—	280	580	1200	2300	3300	4600	7200	10000

Reduction Ratio	Model 14	Model 17	Model 20	Model 25	Model 32	Model 40	Model 45	Model 50	Model 58	Model 65
30	59	100	170	340	720	—	—	—	—	—
50	88	150	220	450	980	1800	2700	3700	5800	7800
80	110	200	350	680	1400	2800	3900	5400	8200	11000
100	84	160	260	500	1000	2100	3100	4100	6400	9400
120	—	120	240	470	980	1900	2800	3800	5800	8300
160	—	—	220	450	980	1800	2600	3600	5600	8000

Series	Model 14	Model 17	Model 20	Model 25	Model 32	Model 40	Model 45	Model 50	Model 58	Model 65
CSG	260	500	800	1700	3500	6700	8900	12200	19000	26600
CSF	190	330	560	1000	2200	4300	5900	8000	12000	17000

CSG/CSF Harmonic Drive Catalogue (PDF)

CSG/CSF CAD Model Pack (STEP/IGES)

Torque & Lifetime Curve Charts

Installation & Lubrication Guide

Applications

The CSG / CSF Series Harmonic Drive Gearbox is extensively used in high-precision motion control applications such as:

Industrial Robots

Articulated robot joints (wrist pitch, yaw, roll)
SCARA robot arms
Collaborative robot actuators
AGV/AMR sensor positioning modules

Machine Tools & CNC Systems

Precision rotary tables
Tool changer actuators
High-accuracy positioning modules

Semiconductor & LCD Manufacturing Equipment

Wafer transfer arms
Stage rotation units
High-cleanroom automation axes

Aerospace & Defense

Satellite antenna positioning
UAV gimbal stabilization

Medical & Laboratory Automation

Surgical robotics
Precision diagnostic equipment
Automated sample handling mechanisms

Contact Us

Request a Quote or Technical Consultation for the CSG CSF Harmonic Drive Gearbox

Tell us your motor model, torque requirements, application details, and installation constraints. Our engineering team will reply with professional recommendations and compatible harmonic drive gearbox sizing within 24 hours.

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Product Overview

Key Features

Technical Information

Applications

Industrial Robots

Machine Tools & CNC Systems

Semiconductor & LCD Manufacturing Equipment

Aerospace & Defense

Medical & Laboratory Automation

Contact Us

Request a Quote or Technical Consultation for the CSG CSF Harmonic Drive Gearbox

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