Echt-Flex® Coupling
NER Long Spacer Type
Capable of accommodating hub face distances up to 6000mm.
*Made-to-order
RoHS compliant
Standard
| Capacity (N·m{kgf·m}) | Bore Diameter Range (mm) |
|---|---|
| 590{60} to 8500{867} | φ25 to φ145 |
Features of NER Long Spacer Type
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.
Suitable for Line Shaft Drive
Combined with miter gearboxes, fit for line shaft drives
Long Spacers in specific dimensions available
Long spacers in specific, high demand dimensions are always in stock and available for quick delivery.
Capable of accommodating up to 6m of hub face distance.
Capable of accommodating up to 6000mm of hub face distance.
Spacers made of composite materials
Long Spacers made of extremely lightweight and wear resistant CFRP (carbon fiber reinforced plastic) available.
Structure
(1) Hub A
(2) Center unit
(3) Positioning bolt
(4) Hexagonal bolt
Reference Number System
| NER | 230 | W | – | A | F | 70 | P | D1 | X | A | G | 80 | J | D2 | – | J1234 |
| Series | Size | Type | (1) | (2) | (3) | (4) | (5) | (1) | (2) | (3) | (4) | (5) | (6) |
(1) Kind of hub: A = Adaptor hub
(2) Shaft bore tolerance
(3) Bore diameter (Plain bore: R)
(4) Keyway tolerance
(5) Set screw positioning
(6) Hub face distance: JS = Stocked standard dimension, J = Custom dimension
*Indicate the smaller bore diameter first
*Indicate the plain bore (symbol “R”) first
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.
Long Spacer Type rotation limits (Dimension ‘J’)
Unit: mm
| Rotational speed used/ Model No. |
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 | – | – | – | – | – |
