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A bogie (also known as a truck in some countries) is a wheeled chassis that is found on railway carriages, wagons and locomotives. They are also found on other vehicles such as aeroplanes and lorries.

British Railways

These are examples of bogies used on BR coaching stock:

BR1 bogie

Commonwealth bogie

B4 bogie

B5 bogie: Heavy duty version of the B4

BT10 bogie