Pot bearing is a device placed between a structure (like a bridge girder or slab) and its support (like a pier or column). Its job is to: ✔ Allow rotation The top plate can rotate slightly when the structure expands, contracts, or deflects. ✔ Allow horizontal movement (if it is a guided or sliding type) The PTFE (Teflon) sliding plate lets the top plate move in one or two directions. ✔ Transfer vertical loads safely It carries very heavy loads while still allowing movement. #potbearing #earthqua