ECHT-FLEX Coupling NER Series (Disc Coupling)
- This is a compact flex coupling with outstanding large capacity.
- The NER series is a new ECHT-FLEX coupling that achieves overwhelming torque increase and compactness through the optimization of newly developed discs and bolts.
- ・Applicable shaft diameter: Φ25mm to Φ145mm
- Torque range: 590 to 8500 Nm
[NER special page]
Features
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・Large transmission force
The new disc shape has resulted in a significant increase in torque compared to the previous series.
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・Outstanding ease of use
Our unique center unit structure, which integrates the disk and spacer, eliminates the need for cumbersome disk assembly work on-site.
Installation and removal is simply by removing and attaching the bolts between the center unit and the hub.
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・Compatible with large shaft hole diameters
By adopting a center unit, the maximum shaft hole diameter can be made larger than in the previous series.
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・Wide range of options available
A wide range of combinations are possible, including CFRP (carbon fiber reinforced plastic) spacers, shaft fastening with Power-Lock, and flange mounting.
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・Non-backlash・Lubrication-free・Long life
It has no backlash and high torsional rigidity, making it suitable for servo motor positioning devices.
Also, since there are no sliding parts, there is no need for lubrication.
Product lineup
・Quick delivery Depending on the combination of shaft bore diameters, we can deliver in as little as 5 days. Please refer to the model number example below for the range of products that can be delivered in a Quick delivery.
| Model number | Allowable Torque N・m |
Keyway shaft hole diameter range |
|---|---|---|
| NER59W | 590 | Φ25～Φ65 (Φ61) |
| NER93W | 930 | Φ40～Φ85 (Φ80) |
| NER230W | 2300 | Φ50～Φ90 (Φ84) |
| NER360W | 3600 | Φ60～Φ105 (Φ99) |
| NER630W | 6300 | Φ80～Φ125 (Φ119) |
| NER850W | 8500 | Φ100～Φ145 (Φ139) |
*The ( ) part is the maximum shaft hole diameter when processed according to the old JIS standard.
Shaft fastening method
・Key fastening
*It can also be combined with Power-Lock KE series, etc. Please contact us for details.
Long spacer
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- Hub end face distance (J dimension) up to 6m
We can manufacture to your desired dimensions.
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・Can be used with a floating shaft
A floating shaft can be used when there is a distance between devices.
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・Composite spacer
We offer long spacers made of lightweight, corrosion-resistant CFRP (carbon fiber reinforced plastic).
Please contact us for more details.
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*Rotation limit of long spacer type
When using a long spacer type at high speed, the rotation speed must be checked to avoid resonance points.
When selecting, check that the J dimension and rotation speed for each model number are within the limits.
If the rotational speed exceeds the specified value, a higher model number must be selected.
If the numerical value is outside the range in the table below or if it is not possible to increase the model number, we can manufacture a "long spacer high-speed specification" with a heavier spacer as a countermeasure.
Please contact us.
List of long spacer length limits (J dimension)
Unit: mm
| Model number | Operating speed (r/min) | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 3600 | 2000 | 1800 | 1500 | 1200 | 1000 | 900 | 750 | 720 | 600 | 500 | 400 | 300 | 200 | 150 | |
| NER59W | 1470 | 1960 | 2070 | 2260 | 2520 | 2750 | 2900 | 3170 | 3240 | 3540 | 3870 | 4330 | 4990 | - | - |
| NER93W | 1600 | 2130 | 2240 | 2450 | 2730 | 2980 | 3140 | 3440 | 3510 | 3840 | 4200 | 4690 | 5400 | - | - |
| NER230W | 1930 | 2560 | 2700 | 2950 | 3290 | 3590 | 3790 | 4140 | 4220 | 4620 | 5060 | 5650 | - | - | - |
| NER360W | 2080 | 2760 | 2910 | 3180 | 3540 | 3870 | 4080 | 4460 | 4550 | 4980 | 5440 | - | - | - | - |
| NER630W | 2230 | 2960 | 3110 | 3400 | 3790 | 4140 | 4360 | 4770 | 4870 | 5330 | - | - | - | - | - |
| NER850W | 2240 | 2970 | 3120 | 3410 | 3800 | 4160 | 4380 | 4780 | 4880 | 5340 | - | - | - | - | - |
Structure/Material
Catalogs and Instruction Manuals
Model number display example
| NER230 | W | - | AF70PD1 | X | AG80JD2 | - | J | 1234 |
| ｜ size |
｜ ｜ ｜ |
｜ Left hub symbol |
｜ Right hub symbol |
｜ ｜ ｜ |
｜ J dimension |
|||
| type W: Spacer type |
Long spacer J: Long spacer Long spacers Please refer to the catalogue |
|||||||
| Hub shape | Shaft hole diameter tolerance | Shaft Hole Diameter | Keyway tolerance | Set screw position |
|---|---|---|---|---|
| A | F | 70 | P | D1 |
| A | G | 80 | J | D2 |
| A: Standard hub | F:F7 G:G7 H:H7 J:JS7 P:P7 M:M7 N:N7 K:K7 R:R7 |
Shaft hole diameter is in 1mm increments |
J: New JIS Js9 P: New JIS P9 F: Old JIS F7 E: Old JIS E9 |
 [Click to enlarge] |
