Gearheads

CSG High Torque Gearhead - Standard Series and New Lightweight Series!

Harmonic Drive® CSG series gearheads are improved, high-torque versions of the CSF series.
Torque ratings, life and reliability are significantly improved compared to CSF series products of the same size:

30% higher rated torque
30% higher repeated peak torque
30% higher maximum momentary torque
42% longer life (L10 of 10,000 hours)
The external dimensions, mass, torsional stiffness, moment stiffness, positional accuracy, repeatability, input moment of inertia, etc. are all the same as CSF series gearheads.

The CSG-2UH series is a compact precision gearhead which has zero backlash as well as exceptional accuracy and repeatability. The gearhead incorporates a Harmonic Drive gear component into an integral housing. The gearhead also features a high capacity cross roller bearing and output flange to support the load. A New lightweight version is now available which provides the same output torque with a mass averaging 30% lower than the standard series!

Key Features Common to Both Standard and Lightweight Series

High torque capacity

Zero Backlash

Accuracy <1 arc-min

High torsional stiffness

High efficiency

Smooth operation

Robust cross roller output bearing

Output flange for direct mounting of load

Standard Series Features

Higher Capacity Cross Roller Bearing

Lightweight Series Features

30% average lower weight than Standard Series

High Torque to Weight ratio

Applications

Robot: Joint Drive, End Effector

Machine Tool: Tool Changer, 4th and 5th axis

Mobile Robots: Wheel Drive, Robot Arm

Ordering Code

CSG -	25 -	100 -	2UH -	LW-	SP
1	2	3	4	5	6

1.	Model Name	: CSG series
2.	Size	: 14 , 17 , 20 , 25 , 32 , 40 , 45 , 50 , 58 , 65
3.	Gear Ratio	: 50, 80, 100, 120, 160
4.	Model Type	: 2UH (Gearhead)
5	Lightweight	: LW - Lightweight (No Code for Standard Product)
6.	SP	: Custom Specification (No Code for Standard Product)

Rating Table

Size	Gear Ratio	Rated Torque at 2000rpm		Limit for Repeated Peak Torque		Limit for Average Torque		Limit for Momentary Peak Torque		Max. Input Speed (grease)	2UH Downloads	2UH-LW Downloads
Size	Gear Ratio	Nm	lb-in	Nm	lb-in	Nm	lb-in	Nm	lb-in	rpm	Links	Links
14	50	7	62	23	204	9.0	80	46	407	8,500	PDF DXF	Contact HDLLC for drawings & dxf files
	80	10	89	30	266	14	124	61	540
	100	10	89	36	319	14	124	70	620
17	50	21	186	44	389	34	301	91	805	7,300	PDF DXF	Contact HDLLC for drawings & dxf files
	80	29	257	56	496	35	310	113	1,000
	100	31	274	70	620	51	451	143	1,266
	120	31	274	70	620	51	451	112	991
20	50	33	292	73	646	44	389	127	1,124	6,500	PDF DXF	Contact HDLLC for drawings & dxf files
	80	44	389	96	850	61	540	165	1,460
	100	52	460	107	947	64	566	191	1,690
	120	52	460	113	1,000	64	566	191	1,690
	160	52	460	120	1,062	64	566	191	1,690
25	50	51	451	127	1,124	72	637	242	2,142	5,600	PDF DXF	Contact HDLLC for drawings & dxf files
	80	82	726	178	1,575	113	1,000	332	2,938
	100	87	770	204	1,805	140	1,239	369	3,266
	120	87	770	217	1,920	140	1,239	395	3,496
	160	87	770	229	2,027	140	1,239	408	3,611
32	50	99	876	281	2,487	140	1,239	497	4,398	4,800	PDF DXF	Contact HDLLC for drawings & dxf files
	80	153	1,354	395	3,496	217	1,920	738	6,531
	100	178	1,575	433	3,832	281	2,487	841	7,443
	120	178	1,575	459	4,062	281	2,487	892	7,894
	160	178	1,575	484	4,283	281	2,487	892	7,894
40	50	178	1,575	523	4,629	255	2,257	892	7,894	4,000	PDF DXF	Contact HDLLC for drawings & dxf files
	80	268	2,372	675	5,974	369	3,266	1,270	11,240
	100	345	3,053	738	6,531	484	4,283	1,400	12,390
	120	382	3,381	802	7,098	586	5,186	1,530	13,541
	160	382	3,381	841	7,443	586	5,186	1,530	13,541
45	50	229	2,027	650	5,753	345	3,053	1,235	10,930	3,800	PDF DXF	Contact HDLLC for drawings & dxf files
	80	407	3,602	918	8,124	507	4,487	1,651	14,611
	100	459	4,062	982	8,691	650	5,753	2,041	18,063
	120	523	4,629	1,070	9,470	806	7,133	2,288	20,249
	160	523	4,629	1,147	10,151	819	7,248	2,483	21,975
50	80	484	4,283	1,223	10,824	675	5,974	2,418	21,399	3,500	PDF DXF	Contact HDLLC for drawings & dxf files
	100	611	5,407	1,274	11,275	866	7,664	2,678	23,700
	120	688	6,089	1,404	12,425	1,057	9,354	2,678	23,700
	160	688	6,089	1,534	13,576	1,096	9,700	3,185	28,187
58	80	714	6,319	1,924	17,027	1,001	8,859	3,185	28,187	3,000	PDF DXF	Contact HDLLC for drawings & dxf files
	100	905	8,009	2,067	18,293	1,378	12,195	4,134	36,586
	120	969	8,576	2,236	19,789	1,547	13,691	4,329	38,312
	160	969	8,576	2,392	21,169	1,573	13,921	4,459	39,462
65	80	969	8,576	2,743	24,276	1,352	11,965	4,836	42,799	2,800	PDF DXF	Contact HDLLC for drawings & dxf files
	100	1,236	10,939	2,990	26,462	1,976	17,488	6,175	54,649
	120	1,236	10,939	3,263	28,878	2,041	18,063	6,175	54,649
	160	1,236	10,939	3,419	30,258	2,041	18,063	6,175	54,649

Outline Drawing

CSG-2UH

CSG-2UH-LW

Dimensions

Unit: mm

Model No.	14	17	20	25	32	40	45	50	58	65
Symbol	14	17	20	25	32	40	45	50	58	65
ø A	73	79	93	107	138	160	180	190	226	260
B	41	45	45.5	52	62	72.5	79.5	90	104.5	115
2UH Mass (kg)	0.52	0.68	0.98	1.5	3.2	5.0	7.0	8.9	14.6	20.9
2UH-LW Mass (kg)	0.32	0.46	0.64	1.1	2.2	3.5	5.1	7.0	11.3	16.2

Positional Accuracy

Unit: arc-min

Gear Ratio		14	17	20	25	32	40	45	50	58	65
50 and higher	Standard	1.5	1.5	1.0	1.0	1.0	1.0	1.0	1.0	1.0	1.0
50 and higher	Special	1.0	1.0	0.5	0.5	0.5	0.5	0.5	0.5	0.5	0.5

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