Flexible Coupling – Aluminum spiral beam coupling -Clamp type – Long type The flexure allowed by the beam portion of the coupling is capable of accommodating angular, parallel, and axial misalignment. Rotation character of clockwise or anti-clockwise is exactly the same. Free maintenance, oil-resist and anti-corrosiveness. Offset of angular, parallel, or axial deviation are individual allowed value, so couple reasons of axial offset appearing at same time would reduce the unit allowable value.