A castor suspension system (2) for suspending a first castor (3) at a patient support device (1) is provided. The castor suspension system (2) comprises a pivoting suspension link (5) pivotably attachable to the patient support device (1), and a springy element (7) comprising a leaf spring made of a band deformed such that the band makes at least one U-turn (12) so that the band has a first leg (8) and at least one second leg (9). One of the first leg (8) and the at least one second leg (9) is provided with a first support portion (10) supported on the pivoting suspension link (5), and the other of the first leg (8) and the at least one second leg (9) is provided with a second support portion (11) for supporting the springy element (7) with respect to the patient support device (1) such that the springy element is configured to provide a pre-stress force to the pivoting suspension link (5).
