Elastic Elements for RINGFEDER TNS Couplings in Stock

• RINGFEDER TNS Elastic Couplings
• Elastic Element Wear Check

RINGFEDER TNS Elastic Couplings

RINGFEDER TNS are torsionally flexible, puncture-proof shaft couplings. They transmit torque through pressure-stressed elastic buffers connected to each other in an intermediate ring, which absorbs shocks and torsional vibrations. The element is oil resistant and electrically conductive.

We offer basic types of hubs and elastic elements with typical round shape of protrusions. These intermediate rings are manufactured from high quality Vulkollan polyurethane in red or Perbunan rubber in black.

TNS Coupling Elastic Element Wear Check

During each maintenance of the machine, we recommend removing dust deposits and checking the wear of the coupling's elastic intermediate rings by measuring them correctly. The check is carried out with the machinery switched off and without load.

When the wear limit is reached or exceeded, replace the elastic ring immediately, regardless of other system check intervals. Also replace the intermediate ring after every 3 years of operation regardless of measurements. After replacement, be sure to check the coupling alignment.

Measurement Procedure

1. Rotate the coupling hub so that the front teeth are in contact with the intermediate ring without backlash.
2. Measure the distance of the spur teeth V in the circumferential direction as shown in the illustration.
3. Repeat the measurement on the adjacent edges of the front teeth even after turning the coupling parts in opposite directions.
4. If the measured value of V falls to V_min or even below it, you must immediately replace the elastic intermediate ring. The table below shows the V_min values.
5. After checking for wear, reinstall all protective devices and perform a check start-up of the machine.

Table of V_min Distance for Wear Testing

RINGFEDER TNS Elastic Elements in the TYMA CZ Eshop

RINGFEDER TNS Hubs in the TYMA CZ Eshop