Major Specifications ECHT-FLEX Coupling NES series

形番：NES250W-NCXNC

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PDF outline drawing

Important Notice: Regarding errors in PDF drawings

From August 4th to August 23rd, 2017
Spacer type and standard hub x standard hub
When combining, accidentally use a single type
The drawing was generated.
We sincerely apologize to customers who downloaded drawings for the relevant models during the above period, but we ask that you download them again.

DXF Drawing data

NES250W-N**CXN**C

The minimum hole diameter for the applicable size,
The maximum hole diameter is displayed.

(Click here for a list of DXF data)

3D CAD data

Go to the CADENAS WEB2CAD website

Standard price

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Delivery

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Coupling selection site is here

※	3D CAD data will be provided via a link to CADENAS Web2CAD Co., Ltd.'s CAD Drawing Library site "PARTcommunity."
※	For inquiries about 3D CAD data and PARTcommunity, please contact Cadenas Web2CAD. Cadenas Web to CAD Co., Ltd. TEL: (03)5961‐5031 FAX: (03)5961‐5032

Catalogs and Instruction Manuals

Transmission capacity and dimensions table

Allowable Torque		Note 1) the best rotate speed r/min	Note 4) Shaft hole diameter ΦD mm		Dimensions in mm						Torsional rigidity
Allowable Torque			Shaft Hole Diameter range	standard Shaft Hole Diameter	A	B	E	ΦK	J	Through shaft maximum possible Shaft diameter	Entire coupling		Disc only
N･m	{kgf･m}		Shaft Hole Diameter range	standard Shaft Hole Diameter	A	B	E	ΦK	J	Through shaft maximum possible Shaft diameter	N･m/rad	{kgf･m/rad}	N･m/rad	{kgf･m/rad}
25	2.6	10000	10～25	See table below	59	20	3	55	19	22	11000	1100	22000	2200

Axial direction Spring constant		Note 3) Allowable misalignment			Note 2) mass g	Note 2) inertia Moment kg･m ²	Note 2) GD ² {kgf･cm ²}
N/mm	{kgf/mm}	Angular Misalignment deg	Parallel Error mm	Axial Displacement mm	Note 2) mass g	Note 2) inertia Moment kg･m ²	Note 2) GD ² {kgf･cm ²}
11	1.1	2.0	0.28	±1.4	320	140×10^-6	5.7

Note)
1. The maximum rotation speed is not a value that takes dynamic balance into consideration.
2. Mass, moment of inertia, and GD ² are values for the maximum bore diameter.
3. The allowable misalignment is the value when the other two misalignments are zero.
4. The recommended tolerance for the mounting shaft is h7. However, the shaft diameter Φ35 is compatible with servo motor shafts with a tolerance of +0.010 to 0.