The Whitechapel Bell Foundry designed the Olympic Bell seen at the opening ceremony for the London 2012 Olympic Games , although it was not cast on the premises . The furnaces at Whitechapel could not provide the 23 tons of molten metal required to make the bell , so it was manufactured at a factory in the Netherlands which normally produces ship 's propellers . The Olympic bell has the lowest tone of any bell in the world at note B , is the largest harmonically tuned bell in the world and the widest bell in Britain . It now hangs in the Queen Elizabeth Park and is not rung because it is deemed too loud to be rung without disturbing local residents
opening ceremony for the London 2012 Olympic Games
2012 Summer Olympics opening ceremony
Whitechapel Bell Foundry