1.Nylon sleeve for lightweight functional and corrosion resistance.

2.Generating a low-level of friction for lubrication-free operation.

3.The teeth help to distribute torsional load accross it and the hubs to reduce wear and extend service life.

4.The sleeve and the hubs can absorb the various stress, loads, vibrations and other forces caused by the misalignments of the shafts.

5.Thus flexible couplings can be used in a broad applications such as motor vehicles, conveyors, escalators, agricultral, forestry, and mining equipment, robotics and so on.