Japan

EN

TSUBAKI Power Transmission Products Information Site

Greatly increased torque Disk Couplings Echt-Flex NER Series

ECHT-FLEX Coupling NER Series

No need to assemble the disk, no need to replace the disk in the center unit during maintenance

Echt-Flex Coupling NER series does not require to assemble the disk in the center unit to the customer's equipment nor replace/disassemble the disk in the center unit during maintenance.

Reasons for not needing disk replacement-1: Torque transmission mechanism

Transmission of torque by frictional force

Axial force is generated on the bolt by tightening the U-nut, and torque is transmitted by the frictional force between the hub, washer and disk.

Transmission of torque by frictional force

Since there is no sliding part, it is not necessary to replace the disk during maintenance.

Reasons for not needing disk replacement-2: Tsubaki's original center unit structure

In the conventional disc coupling, the disk part had to be assembled by the user, but NER series has a center unit structure, and the disk is shipped from the factory as assembled with the spacer and flange. Even during maintenance, the disk can be attached and detached without disassembling, and there is no need to replace the disk.

Benefits

  • ・No need to assemble disks on site.
  • ・Can be tightened with a small torque wrench.
  • ・Extra man-hours can be reduced by eliminating incorrect washer insertion and loss of parts.
  • ・Hub A can have larger shaft bore diameter.
  • ・Detachable without disassembling the disk during maintenance.

Structure of ECHT-FLEX NER series

Construction

Click to enlarge the structure diagram

Structure of ECHT-FLEX NER series Video content

Handling of Disk Couplings
Handling of Disk Couplings
Handling of Disk Couplings

After centering, simply tighten the bolts to complete the coupling.

※Torque control with a torque wrench is required.

【Example of customer's consideration 】

Disk coupling is friction transmission and has no sliding parts and can be used for a long time.

In addition, NER Series has a center unit structure, eliminating the need to assemble and disassemble the disk section.
It is usually not necessary to have a disk ready for maintenance.

User

We'll be checking the pump next month, so we have to prepare a coupling disk.

There is no need to prepare the disk because the disk does not wear and does not need to be disassembled!

Tsubaki
User

Certainly, with this coupling, we don't have to replace the disk!

Guide to related products

Coupling  Catalogs

This is a catalog that lists all Tsubaki couplings, including disk type couplings.
(2021.08.01)

Tsubaki offers an extensive line-up of couplings to meet diversified needs -- from general applications to high precision servo motor applications.

NER Series/ NEF Series For cooling tower application  Leaflet

Have published a leaflet introducing the specifications of NER / NEF series for cooling tower.
(2021.10.01)

We propose specifications that use CFRP, a new material, to reduce weight and improve environmental resistance to cooling water.

NER Series Power-Lock specifications  Leaflet

Have published a leaflet introducing Power Lock specifications of NER series.
(2021.06.01)

We propose a combination with Power Lock that is optimal for precision positioning devices such as servo motor drives.

NER Series - Examples of MTO products  Brochure

Have published a brochure that introduces a wide range of options and special specifications for NER series.
(2019.04.01)

By providing Tsubaki's solutions, we propose solutions to customers' problems.