Vacuum Applications Beryllium Copper Bellows Nomenclature Bellows Movements Standard Tolerances Multiply or Laminated Bellows Neck Trims Explanation of Tabulated Data Ordering Instructions Bellows Movements AXIAL Extension or compression from the manufactured length along the longitudinal centerline with ends parallel. LATERAL Displacement perpendicular to the longitudinal centerline with the ends parallel. ANGULAR Rotation of the longitudinal centerline about the perpendicular axis. COMBINED Axial, lateral, and angular movements can be combined within the rated movements. TORSION OR TWISTING AROUND THE CENTERLINE (Not recommended.) [ back to top ]