SHG/SHF Harmonic Gear Reducer 5 Proven Benefits

SHG/SHF Series Harmonic Gear Reducer – High Torque, Compact Design, Precision Performance

Product Overview

The SHG/SHF series harmonic gear reducers are precision-engineered devices designed for high-performance motion control applications. These advanced harmonic drive systems combine high torque capacity, compact size, and exceptional accuracy, making them ideal for robotics, automation, CNC machinery, aerospace, and other high-precision mechanical systems.

Featuring a large-diameter hollow shaft and a flat, compact form factor, the SHG/SHF series harmonic gear reducers provide a reliable solution where space constraints and precise motion control are critical. The input and output shafts are coaxial, ensuring seamless integration with your mechanical system, while the toothless reduction mechanism eliminates backlash, delivering superior rotational and positioning accuracy.

Key Features

Large-Diameter Hollow Shaft & Flat Design
The SHG/SHF series harmonic gear reducer features a large-diameter hollow bore, allowing for easy passage of cables, shafts, or other mechanical components. The flat design reduces overall installation footprint, making it suitable for compact systems.
Compact and Streamlined Structure
Engineered for space efficiency, these harmonic reducers provide high torque output in a small, lightweight package, ideal for robotic joints, CNC axes, and precision automation devices.
High Torque Capacity
The SHG Series offers up to 30% higher torque compared to the SHF Series, making it suitable for heavy-duty applications without compromising performance. Torque optimization is critical in industrial robotics and is discussed in ScienceDirect.
Exceptional Rigidity
Integrated cross roller bearings provide direct load support and high stiffness, ensuring reliable performance even under heavy loads.
Zero Backlash Operation
With no teeth backlash, the SHG/SHF harmonic gear reducers provide superior rotational precision and positioning accuracy, critical for high-precision manufacturing and robotic applications.
Input and Output Coaxial Design
Simplifying mechanical integration, the coaxial configuration reduces alignment errors, minimizes mechanical stress, and optimizes system efficiency.
Long Service Life
The SHG series harmonic gear reducer extends operational lifespan by 43% compared to the SHF Series, achieving up to 10,000 hours under normal operating conditions. For durability testing references, see ASME Mechanical Systems.
The SHG/SHF Series comes in versatile configurations to match various application needs:
Hollow Shaft Type (2UH): Ideal for applications requiring central cable routing or shaft pass-through.
Shaft Input Type (2UJ): Suitable for standard shaft input mechanisms.
Standard Simplified Type (2S0): Convenient for general-purpose usage.
Hollow Simplified Type (2SH): Combines the benefits of a hollow shaft and simplified installation for ease of integration.
With multiple shape options and customizable configurations, designers can select the most suitable model to optimize their machinery layout and performance. For industrial design guidelines, consult ISO/TC 60 Mechanical Drives.

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)
14	30	4.0	0.41	9.0	0.92	6.8	0.69	17	1.7	14000	8500	6500	3500
14	50	5.4	0.55	18	1.8	6.9	0.70	35	3.6	14000	8500	6500	3500
14	80	7.8	0.80	20	2.4	11	1.1	47	4.8	14000	8500	6500	3500
14	100	7.8	0.80	28	2.9	11	1.1	54	5.5	14000	8500	6500	3500
17	30	8.8	0.90	16	1.8	12	1.2	30	3.1	10000	7300	6500	3500
17	50	16	1.6	34	3.5	26	2.6	70	7.1	10000	7300	6500	3500
17	80	22	2.2	43	4.4	27	2.7	87	8.9	10000	7300	6500	3500
17	100	24	2.4	54	5.5	39	4.0	110	11.0	10000	7300	6500	3500
17	120	24	2.4	54	5.5	39	4.0	86	8.8	10000	7300	6500	3500
20	30	15	1.5	27	2.8	20	2.0	50	5.1	10000	6500	6500	3500
20	50	25	2.5	56	5.7	34	3.5	98	10.0	10000	6500	6500	3500
20	80	34	3.5	74	7.5	47	4.8	127	13.0	10000	6500	6500	3500
20	100	40	4.1	82	8.4	49	5.0	147	15.0	10000	6500	6500	3500
20	120	40	4.1	87	8.9	49	5.0	147	15.0	10000	6500	6500	3500
20	160	40	4.1	92	9.4	49	5.0	147	15.0	10000	6500	6500	3500
25	30	27	2.8	50	5.1	38	3.9	95	9.7	7500	5600	5600	3500
25	50	39	4.0	98	10.0	55	5.6	186	19.0	7500	5600	5600	3500
25	80	63	6.4	137	14.0	87	8.9	255	26.0	7500	5600	5600	3500
25	100	67	6.8	157	16.0	108	11.0	284	29.0	7500	5600	5600	3500
25	120	67	6.8	167	17.0	108	11.0	304	31.0	7500	5600	5600	3500
25	160	67	6.8	176	18.0	109	11.0	314	32.0	7500	5600	5600	3500
32	30	54	5.5	100	10.0	75	7.7	200	20.0	7000	4800	4600	3500
32	50	76	7.8	216	22.0	108	11.0	382	39.0	7000	4800	4600	3500
32	80	118	12.0	304	31.0	167	17.0	568	58.0	7000	4800	4600	3500
32	100	137	14.0	333	34.0	216	22.0	647	66.0	7000	4800	4600	3500
32	120	137	14.0	353	36.0	216	22.0	686	70.0	7000	4800	4600	3500
32	160	137	14.0	372	38.0	216	22.0	686	70.0	7000	4800	4600	3500
40	50	137	14.0	402	41.0	196	20.0	686	70.0	5600	4000	3600	3000
40	80	206	21.0	519	53.0	284	29.0	980	100.0	5600	4000	3600	3000
40	100	265	27.0	568	58.0	372	38.0	1080	110.0	5600	4000	3600	3000
40	120	294	30.0	617	63.0	451	46.0	1180	120.0	5600	4000	3600	3000
40	160	294	30.0	647	66.0	451	46.0	1180	120.0	5600	4000	3600	3000
45	50	176	18.0	500	51.0	265	27.0	950	97.0	5000	3800	3300	3000
45	80	313	32.0	706	72.0	390	40.0	1270	130.0	5000	3800	3300	3000
45	100	353	36.0	755	77.0	500	51.0	1570	160.0	5000	3800	3300	3000
45	120	402	41.0	823	84.0	620	63.0	1760	180.0	5000	3800	3300	3000
45	160	402	41.0	882	90.0	630	64.0	1910	195.0	5000	3800	3300	3000
50	50	122	12.0	715	73.0	175	18.0	1430	146.0	4500	3500	3000	2500
50	80	372	38.0	841	96.0	819	53.0	1860	190.0	4500	3500	3000	2500
50	100	470	48.0	960	100.0	666	68.0	2050	210.0	4500	3500	3000	2500
50	120	529	54.0	1080	110.0	813	83.0	2060	210.0	4500	3500	3000	2500
50	160	528	54.0	1180	120.0	843	86.0	2450	250.0	4500	3500	3000	2500
58	50	176	18.0	1020	104.0	260	27.0	1960	200.0	4000	3000	2700	2200
58	80	549	56.0	1480	151.0	770	79.0	2450	250.0	4000	3000	2700	2200
58	100	696	71.0	1590	162.0	1060	108.0	3180	325.0	4000	3000	2700	2200
58	120	745	76.0	1720	176.0	1190	121.0	3330	340.0	4000	3000	2700	2200
58	160	745	76.0	1840	188.0	1210	123.0	3430	350.0	4000	3000	2700	2200

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)
14	50	7.0	0.7	23	2.3	9	0.9	46	4.7	14000	8500	6500	3500
14	80	10	1.0	30	3.1	14	1.4	61	6.2	14000	8500	6500	3500
14	100	10	1.0	36	3.7	14	1.4	70	7.2	14000	8500	6500	3500
17	50	21	2.1	44	4.5	34	3.4	91	9	10000	7300	6500	3500
17	80	29	2.9	56	5.7	35	3.6	113	12	10000	7300	6500	3500
17	100	31	3.2	70	7.2	51	5.2	143	15	10000	7300	6500	3500
17	120	31	3.2	70	7.2	51	5.2	112	11	10000	7300	6500	3500
20	50	33	3.3	73	7.4	44	4.5	127	13	10000	6500	6500	3500
20	80	44	4.5	96	9.8	61	6.2	165	17	10000	6500	6500	3500
20	100	52	5.3	107	10.9	64	6.5	191	20	10000	6500	6500	3500
20	120	52	5.3	113	11.5	64	6.5	191	20	10000	6500	6500	3500
20	160	52	5.3	120	12.2	64	6.5	191	20	10000	6500	6500	3500
25	50	51	5.2	127	13	72	7.3	242	25	7500	5600	5600	3500
25	80	82	8.4	178	18	113	12	332	34	7500	5600	5600	3500
25	100	87	8.9	204	21	140	14	369	38	7500	5600	5600	3500
25	120	87	8.9	217	22	140	14	395	40	7500	5600	5600	3500
25	160	87	8.9	229	23	140	14	408	42	7500	5600	5600	3500
32	50	99	10	281	29	140	14	497	51	7000	4800	4600	3500
32	80	153	16	395	40	217	22	738	75	7000	4800	4600	3500
32	100	178	18	433	44	281	29	841	86	7000	4800	4600	3500
32	120	178	18	459	47	281	29	892	91	7000	4800	4600	3500
32	160	178	18	484	49	281	29	892	91	7000	4800	4600	3500
40	50	178	18	523	53	255	26	892	91	5600	4000	3600	3000
40	80	268	27	675	69	369	38	1270	130	5600	4000	3600	3000
40	100	345	35	738	75	484	49	1400	143	5600	4000	3600	3000
40	120	382	39	802	82	586	60	1530	156	5600	4000	3600	3000
40	160	382	39	841	86	586	60	1530	156	5600	4000	3600	3000
45	50	229	23	650	66	345	35	1235	126	5000	3800	3300	3000
45	80	407	41	918	94	507	52	1651	168	5000	3800	3300	3000
45	100	459	47	982	100	650	66	2041	208	5000	3800	3300	3000
45	120	523	53	1070	109	806	82	2288	233	5000	3800	3300	3000
45	160	523	53	1147	117	819	84	2483	253	5000	3800	3300	3000
50	80	484	49	1223	125	675	69	2418	247	4500	3500	3000	2500
50	100	611	62	1274	130	866	88	2678	273	4500	3500	3000	2500
50	120	688	70	1404	143	1057	108	2678	273	4500	3500	3000	2500
50	160	688	70	1534	156	1096	112	3185	325	4500	3500	3000	2500
58	80	714	73	1924	196	1001	102	3185	325	4000	3000	2700	2200
58	100	905	92	2067	211	1378	141	4134	422	4000	3000	2700	2200
58	120	969	99	2236	228	1547	158	4329	441	4000	3000	2700	2200
58	160	969	99	2392	244	1573	160	4459	455	4000	3000	2700	2200
65	80	969	99	2743	280	1352	138	4836	493	3500	2800	2400	1900
65	100	1236	126	2990	305	1976	202	6175	630	3500	2800	2400	1900
65	120	1236	126	3263	333	2041	208	6175	630	3500	2800	2400	1900
65	160	1236	126	3419	349	2041	208	6175	630	3500	2800	2400	1900

Reduction Ratio	Unit	Grade	Model 14	Model 17	Model 20	Model 25	Model 32	Model ≥40
30	×10⁻³rad	Standard	5.8	4.4	4.4	4.4	4.4	—
30	arc-min	Standard	2	1.5	1.5	1.5	1.5	—
30	×10⁻³rad	Precision	—	—	2.9	2.9	2.9	—
30	arc-min	Precision	—	—	1	1	1	—
50 (or above)	×10⁻³rad	Standard	4.4	4.4	2.9	2.9	2.9	2.9
50 (or above)	arc-min	Standard	1.5	1.5	1	1	1	1
50 (or above)	×10⁻³rad	Precision	2.9	2.9	1.5	1.5	1.5	1.5
50 (or above)	arc-min	Precision	1	1	0.5	0.5	0.5	0.5

Reduction Ratio	Unit	Model 14	Model 17	Model 20	Model 25	Model 32	Model ≥40
30	×10⁻³rad	8.7	8.7	8.7	8.7	8.7	—
30	arc-min	3.0	3.0	3.0	3.0	3.0	—
50	×10⁻³rad	5.8	5.8	5.8	5.8	5.8	5.8
50	arc-min	2.0	2.0	2.0	2.0	2.0	2.0
≥80	×10⁻³rad	2.9	2.9	2.9	2.9	2.9	2.9
≥80	arc-min	1.0	1.0	1.0	1.0	1.0	1.0

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

Spec	Unit	Reduction Ratio	Model 14	Model 17	Model 20	Model 25	Model 32	Model 40	Model 45	Model 50	Model 58	Model 65
Stiffness (T₁)	Nm	30	2.0	3.9	7.0	14	29	54	76	108	168	235
Stiffness (T₁)	kgf·m	30	0.2	0.4	0.7	1.4	3.0	5.5	7.8	11	17	24
Stiffness (T₂)	Nm	30	6.9	12	25	48	108	196	275	382	698	843
Stiffness (T₂)	kgf·m	30	0.7	1.2	2.5	4.9	11	20	28	39	61	86
Stiffness (K₁)	×10⁻⁴Nm/rad	30	0.19	0.34	0.57	1.0	2.4	一	一	一	一	一
Stiffness (K₁)	kgf·m/arc-min	30	0.056	0.10	0.17	0.30	0.70	一	一	一	–	一
Stiffness (K₂)	×10⁻⁴Nm/rad	30	0.24	0.44	0.71	1.3	3.0	一	一	一	一	一
Stiffness (K₂)	kgf·m/arc-min	30	0.07	0.13	0.21	0.40	0.89	一	一	–	二	一
Stiffness (K₃)	×10⁻⁴Nm/rad	30	0.34	0.67	1.1	2.1	4.9	一	一	一	一	一
Stiffness (K₃)	kgf·m/arc-min	30	0.10	0.20	0.32	0.62	1.5	一	一	一	二	一
Stiffness (θ₁)	×10⁻³rad	30	10.5	11.5	12.3	14	12.1	一	–	–	一	一
Stiffness (θ₁)	arc-min	30	3.6	4.0	4.1	4.7	4.3	一	一	一	一	一
Stiffness (θ₂)	×10⁻³rad	30	31	30	38	40	38	一	一	一	二	一
Stiffness (θ₂)	arc-min	30	10.7	10.2	12.7	13.4	13.3	一	一	一	一	一
Stiffness (K₁)	×10⁻⁴Nm/rad	50	0.34	0.81	1.3	2.5	5.4	10	15	20	31	一
Stiffness (K₁)	kgf·m/arc-min	50	0.1	0.24	0.38	0.74	1.6	3.0	4.3	5.9	9.3	一
Stiffness (K₂)	×10⁻⁴Nm/rad	50	0.47	1.1	1.8	3.4	7.8	14	20	28	44	一
Stiffness (K₂)	kgf·m/arc-min	50	0.14	0.32	0.52	1.0	2.3	4.2	6.0	8.2	13	一
Stiffness (K₃)	×10⁻⁴Nm/rad	50	0.57	1.3	2.3	4.4	9.8	18	26	34	54	一
Stiffness (K₃)	kgf·m/arc-min	50	0.17	0.4	0.67	1.3	2.9	5.3	7.6	10	16	一
Stiffness (θ₁)	×10⁻³rad	50	5.8	4.9	5.2	5.5	5.5	5.2	5.2	5.5	5.2	一
Stiffness (θ₁)	arc-min	50	2.0	1.7	1.8	1.9	1.9	1.8	1.8	1.9	1.8	一
Stiffness (θ₂)	×10⁻³rad	50	16	12	15.4	15.7	15.7	15.4	15.1	15.4	15.1	一
Stiffness (θ₂)	arc-min	50	5.6	4.2	5.3	5.4	5.4	5.3	5.2	5.3	5.2	一
Stiffness (K₁)	×10⁻⁴Nm/rad	80+	0.47	1	1.6	3.1	6.7	13	18	25	40	54
Stiffness (K₁)	kgf·m/arc-min	80+	0.14	0.3	0.47	0.92	2.0	3.8	5.4	7.4	12	16
Stiffness (K₂)	×10⁻⁴Nm/rad	80+	0.61	1.4	2.5	5.0	11	20	29	40	61	88
Stiffness (K₂)	kgf·m/arc-min	80+	0.18	0.4	0.75	1.5	3.2	6.0	8.5	12	18	26
Stiffness (K₃)	×10⁻⁴Nm/rad	80+	0.71	1.6	2.9	5.7	12	23	33	44	71	98
Stiffness (K₃)	kgf·m/arc-min	80+	0.21	0.46	0.85	1.7	3.7	6.8	9.7	13	21	29
Stiffness (θ₁)	×10⁻³rad	80+	4.1	3.9	4.4	4.4	4.4	4.1	4.1	4.4	4.1	4.4
Stiffness (θ₁)	arc-min	80+	1.4	1.3	1.5	1.5	1.5	1.4	1.4	1.5	1.4	1.5
Stiffness (θ₂)	×10⁻³rad	80+	12	9.7	11.3	11.1	11.6	11.1	11.1	11.1	11.1	11.3
Stiffness (θ₂)	arc-min	80+	4.2	3.3	3.9	3.8	4.0	3.8	3.8	3.8	3.8	3.9

Series	Reduction Ratio	Unit	Model 14	Model 17	Model 20	Model 25	Model 32	Model 40	Model 45	Model 50	Model 58	Model 65
SHG Series	50	Nm	110	190	280	580	1200	2300	3500	—	—	—
SHG Series	80	Nm	140	260	450	880	1800	3600	5000	7000	10000	14000
SHG Series	100	Nm	100	200	330	650	1300	2700	4000	5300	8300	12000
SHG Series	120	Nm	—	150	310	610	1200	2400	3600	4900	7500	10000
SHG Series	160	Nm	—	—	280	580	1200	2300	3300	4600	7200	10000
SHF Series	30	Nm	59	100	170	340	720	—	—	—	—
SHF Series	50	Nm	88	150	220	450	980	1800	2700	3700	5800
SHF Series	80	Nm	110	200	350	680	1400	2800	3900	5400	8200
SHF Series	100	Nm	84	160	260	500	1000	2100	3100	4100	6400
SHF Series	120	Nm	—	120	240	470	980	1900	2800	3800	5800
SHF Series	160	Nm	—	—	220	450	980	1800	2600	3600	5600

Series	Reduction Ratio	Unit	Model 14	Model 17	Model 20	Model 25	Model 32	Model 40	Model 45	Model 50	Model 58	Model 65
SHG Series	Full Reduction Ratio	Nm	210	420	700	1300	2800	5200	7600	10400	16200	22800
SHF Series	Full Reduction Ratio	Nm	140	270	440	890	1750	3750	5400	7500	11800

SHG SHF Harmonic Gearbox Dimensions - 2UH

SHG SHF Harmonic Gearbox Dimensions - 2UJ

SHG SHF Harmonic Gearbox Dimensions - 2SH -1

SHG SHF Harmonic Gearbox Dimensions - 2SH -2

SHG SHF Harmonic Gearbox Dimensions - 2SO-1

SHG SHF Harmonic Gearbox Dimensions - 2SO-2

SHG/SHF Series Technical Datasheet (PDF)

3D CAD Models (STEP/IGES)

Installation & Maintenance Manual

Applications

The SHG/SHF series harmonic gear reducers excel in high-precision, high-torque, and space-constrained applications, including:

Industrial Robotics: Robotic arms, automated assembly lines, and collaborative robots (cobots). See Robotics Tomorrow for examples of harmonic drives in robotics.
CNC and Machine Tools: Precise spindle control, linear actuators, and rotary tables.
Aerospace & Defense: High-accuracy gimbal systems, flight simulators, and radar positioning.
Medical Devices: Surgical robots, imaging devices, and laboratory automation equipment.
Automation & Semiconductor Manufacturing: Wafer handling, pick-and-place robots, and precision conveyors.

By providing high rigidity, zero backlash, and compact design, the SHG/SHF harmonic gear reducer ensures consistent accuracy and durability in demanding operational environments. For case studies on harmonic drives in industrial automation, visit Automation World.

Contact Us

Ready to optimize your machinery with high-precision, high-torque harmonic reducers? Fill out the form below to request a quote, technical datasheet, or consultation from our expert team. Our engineers are here to help select the perfect configuration for your application.

Please enable JavaScript in your browser to submit the form.kadence-form-1614_4f6400-70 .kadence-blocks-form-field.kb-submit-field { display: none; }

Product Overview

Key Features

Technical Information

Applications

Contact Us

Ready to optimize your machinery with high-precision, high-torque harmonic reducers? Fill out the form below to request a quote, technical datasheet, or consultation from our expert team. Our engineers are here to help select the perfect configuration for your application.

Related Products

SHG/SHF Series Harmonic Gear Reducer – High Torque, Compact Design, Precision Performance

SHD Series Harmonic Drive Gearbox – Ultra-Flat Zero-Backlash Precision Gearbox

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

CSD Harmonic Drive Gearbox– Compact, High-Precision, Zero-Backlash Solution