eCON – Electrically Conductive Nonwoven Component for Safe Grounding

Use eCON to Avoid Bearing Damage in Electric Motors

Damaged bearings are a common problem in powerful electric motors. Due to bearing currents and the accompanying electrical erosion, these damages lead to increased noise, vibrations and, in extreme cases, failure of the rolling bearings. eCON, the electrically conductive nonwoven component from Freudenberg, diverts these currents away from the bearing, thus helping to extend its service life.

Freudenberg offers three variants of its grounding system: exclusively as a grounding system (eCON pure), in combination with a friction-optimized Low-Friction Simmerring® (eCON LFS) or combined with a gas-lubricated mechanical seal (eCON LEVITEX).

eCON – for Longer-Lasting Motor Bearings

In eCON pure, eCON LFS and eCON Levitex, Freudenberg combines its material and process expertise to achieve high conductivity and – if needed – reliable sealing. This approach has been successfully established in the market since 2015, for example in the mass production of Europe’s top-selling electric car, the Renault Zoe. The advantages of the eCON are evident in more than just electromobility – industrial motors also benefit from the maintenance-free extension of service life.

All Benefits at a Glance

  • extended service life of the motor bearings due to precise discharge of harmful bearing currents
  • choice between pure grounding element or a space- and weight-neutral sealing solution with integrated grounding
  • does not require any special surface treatment of the shaft and bore
  • low-friction and maintenance-free
  • less potential interference signals in BUS systems and the AM frequency band