Products Power Transmission Products

  • Echt-Flex® Coupling

NER Long Spacer Type

Long Spacer Type of NER Series Echt-Flex Couplings.

Capable of accommodating hub face distances up to 6000mm.

Made-to-order

RoHS compliant

NER long spacer picture

Standard

Capacity N·m{kgf·m} Bore Diameter Range (mm)
590{60} to 8500{867} φ25 to φ145

1.Features of NER Long Spacer Type

NER features bannar
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.

2.Structure

NER long Spacer Structure fig.
  1. (1) Hub A
  2. (2) Center unit
  3. (3) Positioning bolt
  4. (4) Hexagonal bolt

3. 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. (1) Kind of hub: A = Adaptor hub
  2. (2) Shaft bore tolerance
  3. (3) Bore diameter (Plain bore: R)
  4. (4) Keyway tolerance
  5. (5) Set screw positioning
  6. (6) Hub face distance: JS = Stocked standard dimension, J = Custom dimension
  • Indicate the smaller bore diameter first
  • Indicate the plain bore (symbol "R") first

Model numbers for Couplings change from November 1, 2016.

4.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 - - - - -