USA:Completely Fixed Pot Bearing
Corresponding to China: Fixed bearing: with vertical load and vertical rotation performance, code named GD.
USA:Free in one (lateral OR longitudinal) direction Pot Bearing
Corresponding to China: One way movable bearing: with the vertical load, the vertical rotation and a single universal slip performance, code named DX.
USA: Free in both directions (Lateral and Longintudinal) Pot Bearing
Corresponding to China: Two way active bearing (multi directional active bearing): with vertical load, vertical rotation and multi direction slip performance, code named SX.