DESBOER NCGD-U-I Series Strain Wave Gearbox

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Model:14\17\20\25\32\40
Ratio:50 - 160
Backlash: ≤20arcsec
Nominal Output Torque: 3.7-206 Nm

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Category :

NCGD Series

Description

Ordering Instructions

① Model Name	② Specification Code	③ Reduction Ratio						④ Structure Code	⑤ Generator Type	⑥ Custom Specification
NLGS NCGS NCGD NLGD NLGST	11		50		100			C U	I II III IV V	E001
	14	30	50	80	100
	17	30	50	80	100	120
	20		50	80	100	120	160
	25		50	80	100	120	160
	32		50	80	100	120	160
	40		50	80	100	120	160

(1)Production
Location:N is the factory codeFlexspline Shape:Flexsplines are divided
into L top hat type and C cup typeFlexspline Length:Flexsplines are
divided into S standard type and D short tube typeHigh Torque Design:G
for high torque design,blank for standard typeSpecial Structure:T for
three-wave generator structure Gearbox

(2)Specification Codes of Strain Wave Gearboxes:Such as 14,17,20,25,32,40,etc.

(3)Reduction Ratios of Strain Wave Gearboxes:Such as 30,50,80,100,120,160,etc.

(4)Structure Code

(5)Wave Generator Type:C for component type,U for combined type

(6)E001 is the project code for customized Strain Wave Gearboxes

Key Features

High
precision: multiple teeth mesh at the same time in two 180 degree
symmetric positions, so the gear pitch error and cumulative pitch error
have a relatively average impact on the rotation accuracy, and can
obtain very high position accuracy and rotation accuracy.

Large
transmission ratio: the transmission ratio of single-stage strain wave
gear transmission can reach i=30-500, and the structure is simple. Three
basic parts on the same axis can achieve high speed ratio.

High
bearing capacity: in the strain wave transmission, the meshing of teeth
and tooth surface contact, plus the number of meshing teeth at the same
time is relatively large, so the unit area load is small, and the
bearing capacity is higher than other transmission forms.

Small
size and light weight: compared with the ordinary gear device, the
volume and weight can be greatly reduced to achieve miniaturization and
lightweight.

High transmission efficiency and long service life.

Smooth transmission, no impact, and low noise.

Gearbox Technical Specifications

NCGD-14-00-U-I Type Strain Wave Gearbox

MODEL	U	T	W
Wave generator-A Ø6	Ø6H7	7+0.10	2P9/JS9
Wave generator-A Ø8	Ø8H7	9.4+0.10	3P9/JS9
Wave generator-A Ø11	Ø11H7	12.8+0.10	4P9/JS9
Wave generator-A Ø11	Ø11H7

ModelItem	Gear Ratio	Rated Speed at 2000 r/min Input	Max. Allowable Torque during Start/Stop	Max. Allowable Average Load Torque	Max. Momentary Allowable Torque	Max. Allowable Input Speed	Allowable Average Input Speed	Starting Torque	Backlash	Service Life	Weight
ModelItem	Gear Ratio	Nm	Nm	Nm	Nm	rpm	rpm	cNm	arcsec	Hour	Kg
NCGD–14	50	3.7	12	4.8	23	8500	3500	4.4	≤20	9000	0.64
	80	5.4	16	7.7	35			3.2	≤20	10000
	100	5.4	19	7.7	35			2.8	≤20	10000

NCGD-17-00-U-I Type Strain Wave Gearbox

MODEL	U	T	W
Wave generator-A Φ8	Φ8H7	9.4+0.10	3P9/JS9
Wave generator-A Φ11	Φ11H7	12.8+0.10	4P9/JS9
Wave generator-A Φ15	Φ11H7

ModelItem	Gear Ratio	Rated Speed at 2000 r/min Input	Max. Allowable Torque during Start/Stop	Max. Allowable Average Load Torque	Max. Momentary Allowable Torque	Max. Allowable Input Speed	Allowable Average Input Speed	Starting Torque	Backlash	Service Life	Weight
ModelItem	Gear Ratio	Nm	Nm	Nm	Nm	rpm	rpm	cNm	arcsec	Hour	Kg
NCGD–17	50	11	23	18	48	7300	3500	6.7	≤20	9000	0.46
	80	15	29	19	61			4.4	≤20	10000
	100	16	37	27	71			3.8	≤20	10000
	120	16	37	27	71			3.6	≤20	10000

NCGD-20-00-U-I Type Strain Wave Gearbox

MODEL	U	T	W
Wave generator-A Ø8	Ø8H7	9.4+0.10	3P9/JS9
Wave generator-A Ø11	Ø11H7	12.8+0.10	4P9/JS9
Wave generator-A Ø14	Ø14H7	16.3+0.10	5P9/JS9
Wave generator-A Ø20	Ø20H7

ModelItem	Gear Ratio	Rated Speed at 2000 r/min Input	Max. Allowable Torque during Start/Stop	Max. Allowable Average Load Torque	Max. Momentary Allowable Torque	Max. Allowable Input Speed	Allowable Average Input Speed	Starting Torque	Backlash	Service Life	Weight
ModelItem	Gear Ratio	Nm	Nm	Nm	Nm	rpm	rpm	cNm	arcsec	Hour	Kg
NCGD-20	50	17	39	24	69	6500	3500	8.9	≤20	9000	0.65
	80	24	51	33	89			5.7	≤20	10000
	100	28	57	34	95			5.1	≤20	10000
	120	28	60	34	95			4.5	≤20	10000
	160	28	64	34	95			3.9	≤20	10000

NCGD-25-00-U-I Type Strain Wave Gearbox

ModelItem	Gear Ratio	Rated Speed at 2000 r/min Input	Max. Allowable Torque during Start/Stop	Max. Allowable Average Load Torque	Max. Momentary Allowable Torque	Max. Allowable Input Speed	Allowable Average Input Speed	Starting Torque	Backlash	Service Life	Weight
ModelItem	Gear Ratio	Nm	Nm	Nm	Nm	rpm	rpm	cNm	arcsec	Hour	Kg
NCGD-25	50	27	69	38	127	5600	3500	16	≤20	9000	1.2
	80	44	96	60	179			10	≤20	10000
	100	47	110	75	184			9.1	≤20	10000
	120	47	117	75	204			8.2	≤20	10000
	160	47	123	75	204			7.2	≤20	10000

NCGD-32-00-U-I Type Strain Wave Gearbox

ModelItem	Gear Ratio	Rated Speed at 2000 r/min Input	Max. Allowable Torque during Start/Stop	Max. Allowable Average Load Torque	Max. Momentary Allowable Torque	Max. Allowable Input Speed	Allowable Average Input Speed	Starting Torque	Backlash	Service Life	Weight
ModelItem	Gear Ratio	Nm	Nm	Nm	Nm	rpm	rpm	cNm	arcsec	Hour	Kg
NCGD-32	50	53	151	75	268	4800	3500	32	⁡≤20	9000	2.4
	80	83	213	117	398			22	⁡≤20	10000
	100	96	233	151	420			20	⁡≤20	10000
	120	96	247	151	445			17	≤⁡20	10000
	160	96	261	151	445			15	≤⁡20	10000

NCGD-40-00-U-I Type Strain Wave Gearbox

ModelItem	Gear Ratio	Rated Speed at 2000 r/min Input	Max. Allowable Torque during Start/Stop	Max. Allowable Average Load Torque	Max. Momentary Allowable Torque	Max. Allowable Input Speed	Allowable Average Input Speed	Starting Torque	Backlash	Service Life	Weight
ModelItem	Gear Ratio	Nm	Nm	Nm	Nm	rpm	rpm	cNm	arcsec	Hour	Kg
NCGD-40	50	96	281	137	480	4000	3000	55	≤20	10000	3.6
	80	144	364	198	686			36	≤20	10000
	100	185	398	260	700			32	≤20	10000
	120	205	432	315	765			29	≤20	10000
	160	206	453	316	765			26	≤20	10000

Installation Methods

Apply grease to the wave generator,gearbox inner cavity,and connecting flange cavity.

Fix the motor and flange,adding a sealing ring if necessary.

Securely fasten the wave generatorto the motor shaft end (note wave generator orientation),fixing with screws and flat washers.

Slowly rotate the wave generator and insert it into the gearbox,then connect the gearbox to the motor flange.

Note:

(1).Please manufacture the flange according to the installation precision requirements on page P23.

(2).It is recommended to use 12.9 high-strength screws with thread locking adhesive for tightening.

(3).After
installing the wave generator into the gearbox,it is recommended to run
the motor at low speed(100r/min)for aperiod before tightening the
screws.

(4).Design the flange cavity dimensions according to page P23 and fill with specified grease.

(5).Refer to the screw tightening torque table on page P22 for tightening torque.

Related Products

DESBOER NCGD-C-I Series Strain Wave Gearbox

Model:14\17\20\25\32 Ratio:50 - 160 Backlash: ≤20arcsec Nominal Output Torque: 3.7-96 Nm

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