Parallel elastic coupling is the elastic coupling that takes into account the fact that the cutting groove is shorter without weakening the ability to withstand the correction deviation. The material is aluminum alloy or stainless steel.

This performance makes it suitable for light load applications. For example, the connection between the servo motor and the ball screw. However, this performance with the increase of groove size, the bearing load will increase, but in most cases, can be effective enough to protect the bearing. Increasing size means increasing the ability to withstand eccentricity.