Drawing Library Coupling

ECHT-FLEX NER Series

Model number NER□□W~

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It has a unique center unit structure that is easy to install, and achieves a compact size with great transmission capacity.

  • ・Large transmission force:
    The new disc shape has resulted in a significant increase in torque compared to the previous series.
  • ・Outstanding ease of use:
    The unique center unit structure that integrates the disk and spacer eliminates the need for troublesome disks at the site.
    No assembly work is required. Installation and removal is simply a matter of removing and attaching the bolts between the center unit and the hub.
  • ・Compatible with large shaft hole diameters:
    The center unit structure allows for a larger maximum shaft bore diameter than the previous series.
  • ・Non-backlash, no lubrication required, 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.
  • ・Wide range of options available:
    A wide range of combinations are possible, including shaft fastening with Power-Lock and flange mounting.
capacity

For medium to large capacity

Applicable shaft diameter

Φ25mm~Φ145mm

Torque Range

590~8500N・m

Long spacer

can be
Maximum: Hub face distance 6000mm

others

Compatible with CFRP long spacers
Electrical insulation specifications available

ECHT-FLEX NES Series

Model number NES□□W/S~

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This is a small disc coupling that uses extra-super duralumin for the hub and spacer material.

  • ・Low moment of inertia:
    The hub is made of lightweight, high-strength extra-super duralumin, which, combined with the unique hub shape, achieves low inertia.
  • ・High torsional rigidity:
    The straight hub boasts high torsional rigidity and excellent tracking for servo motor drives, making it ideal for precise control.
  • ・Overwhelming product lineup:
    A combination of low inertia hubs and straight hubs allows for 56 different product types and 3,252 different shaft hole diameter combinations.
  • ・Non-backlash:
    Ideal for high-precision positioning operations.
  • ・High torque and reliable shaft fastening force:
    The unique clamp shape increases the shaft fastening force.
  • Easy to install:
    The hubs on both sides are centered using a special jig to ensure coaxiality during assembly.
    The shaft is fastened using a clamping method, and can be installed by simply tightening the two clamp bolts on both sides.
capacity

For small capacity

Applicable shaft diameter

Φ4mm~Φ50mm

Torque Range

0.7~300N・m

Long spacer

none

Hub types and combinations

Straight hub x straight hub
Low inertia hub x low inertia hub
Straight hub x low inertia hub

ECHT-FLEX NEF Series

Model number NEF□□W/S~

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We boast a wide lineup of general-purpose disc couplings, allowing you to choose the shaft fastening method that best suits your application.
Available for selection.

  • ・Long life with no lubrication:
    Since there are no sliding parts, it can be used for a long period of time without lubrication.
  • ・High torsional rigidity:
    It combines high torsional rigidity with excellent flexibility.
  • ・Environment-resistant specifications also available:
    Stainless steel and electroless nickel plating specifications are also available.
  • ・Shaft fastening method:
    For details on features and usage, please refer to the details page.
    Taper lock fastening, clamp fastening, key fastening, Power-Lock fastening
  • -Long spacer type also available:
    Suitable for line shaft drive in combination with Miter Gear Box.
    We also have a selection of long spacers in stock.
capacity

For medium capacity

Applicable shaft diameter

Φ9mm~Φ130mm

Torque Range

19.6~6860N・m

Long spacer

can be
Maximum: Hub face distance 6000mm

others

Compatible with CFRP long spacers
Electrical insulation specifications available

ECHT-FLEX NEH Series

Model number NEH□□W/U~

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This is a large disc coupling that can be used with a maximum torque of 176,000 Nm.

  • - A large, spacer-type coupling.
  • In addition to the standard hub (N hub), there is also an adapter hub (A hub) that allows for a larger shaft hole diameter, and the disc connection part can be disassembled.
    We offer a range of unit spacer hubs (U-hubs) that allow for easy removal and assembly of spacer units without the need for additional spacers.
  • - Gear coupling compatible specifications can also be manufactured for replacing gear couplings.
  • -Long spacer types can also be manufactured.
  • - Electrically insulated specifications can also be manufactured using split spacers and insulating bolt sets.
  • If you require fastening other than with a key, please contact us.
capacity

For large capacity

Applicable shaft diameter

Φ72mm~Φ289mm

Torque Range

8820~176000N・m

Long spacer

can be
Maximum: Hub face distance 6000mm

others

Electrical insulation specifications available

* Please refer to here for a list of CAD data.