ECHT-FLEX Coupling NER Series (Disk Couplings )
- Compact Flex Couplings with substantially higher capacity.
- New compact NER Series Flex Couplings enables higher capacity and downsizing through a newly developed disc and optimized bolts.
- ・Applicable shaft diameter ：Φ25mm～Φ145mm
- ・Torque range ：590～8500N・m
【NER special page 】
Features
-
・High kW ratings
New disc style coupling provides substantially higher torque than with conventional series.
-
・Superior handleability
Original center unit structure that combines the discs and spacer eliminates troublesome disc assembly at the worksite.
Just attach or remove bolts to attach or remove the center unit.
-
・Can be used with large shaft bore diameters
The center unit allows for larger maximum bore diameters than with conventional series.
-
・Wide variety of options available
A wide variety of combinations are available, including locking types, flange mounted types, and Power Locks with reinforced plastic spacers.
-
・Non-backlash ・No lubrication ・Longevity
Ideal for equipment that positions with a servomotor as the coupling has no backlash and a high torsional stiffness.
No need for lubrication as there are no sliding areas.
Line-up
・The combination of short delivery time shaft bore diameters enables the product to be shipped in a minimum of 5 days. Refer to the example of model No. shown below for the range of short delivery.
| Model No. | Allowable Torque N・m |
Finish bored items with keyways (mm) |
|---|---|---|
| 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 dimensions in ( ) is the maximum shaft hole diameter based on former JIS processing.
Shaft coupling method
・Key coupling
※Also possible to combine with the Power Lock KE series. Contact a Tsubaki representative for more information.
Long spacer
-
・Capable of accommodating up to 6m of hub face distance.
It can be manufactured with the desired dimensions.
-
・Can be used with floating shafts
Can be used as a floating shaft when the distance between shafts is large.
-
・Spacers made of composite materials
Long Spacers made of extremely lightweight and corrosion resistant CFRP (carbon fiber reinforced plastic) available.
Please contact Tsubaki representative in detais.
-
※Long Spacer Type rotation limits
When using Long Spacer Type couplings at high speed, you will need to check the rotational speed to avoid resonance points.
Check that the J dimension and rotation speed is within limits for each model when selected.
Select by increasing the model number if the rotational speed used is over the listed rate.
High Speed Type Long Spacer couplings with a heavier spacer are available when dimensions fall outside the following range or when the size cannot be increased.
Contact a Tsubaki representative.
Long Spacer Type rotation limits (Dimension 'J') (Distance J )
Units ：mm
| Model No. | Rotational speed used (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 ・Instruction Manuals
Model No. examples
| NER230 | W | - | AF70PD1 | X | AG80JD2 | - | J | 1234 |
| ｜ Size |
｜ ｜ ｜ |
｜ Left hub type symbol |
｜ Right hub type symbol |
｜ ｜ ｜ |
｜ Distance J |
|||
| Type W：Spacer type |
Long spacer J：Long spacer Refer to the catalog for details on the Long Spacer Type. |
|||||||
| Hub style | Shaft bore tolerance | Shaft Bore Diameter | Keyway tolerance | Set screw positioning |
|---|---|---|---|---|
| A | F | 70 | P | D1 |
| A | G | 80 | J | D2 |
| A:Standard Hubs | F:F7 G:G7 H:H7 J:JS7 P:P7 M:M7 N:N7 K:K7 R:R7 |
Shaft bore diameters are in 1mm units. | J:New JIS Js9 P:New JIS P9 F:Old JIS F7 E:Old JIS E9 |
 [Click to enlarge ] |
